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Pvt model (#24720)
* pull and push updates * add docs * fix modeling * Add and run test * make copies * add task * fix tests and fix small issues * Checks on a Pull Request * fix docs * add desc pvt.md
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@ -433,6 +433,7 @@ Current number of checkpoints: ** (from UCLA NLP) released with the paper [Unified Pre-training for Program Understanding and Generation](https://arxiv.org/abs/2103.06333) by Wasi Uddin Ahmad, Saikat Chakraborty, Baishakhi Ray, Kai-Wei Chang.
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1. **[PoolFormer](https://huggingface.co/docs/transformers/model_doc/poolformer)** (from Sea AI Labs) released with the paper [MetaFormer is Actually What You Need for Vision](https://arxiv.org/abs/2111.11418) by Yu, Weihao and Luo, Mi and Zhou, Pan and Si, Chenyang and Zhou, Yichen and Wang, Xinchao and Feng, Jiashi and Yan, Shuicheng.
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1. **[ProphetNet](https://huggingface.co/docs/transformers/model_doc/prophetnet)** (from Microsoft Research) released with the paper [ProphetNet: Predicting Future N-gram for Sequence-to-Sequence Pre-training](https://arxiv.org/abs/2001.04063) by Yu Yan, Weizhen Qi, Yeyun Gong, Dayiheng Liu, Nan Duan, Jiusheng Chen, Ruofei Zhang and Ming Zhou.
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1. **[PVT](https://huggingface.co/docs/transformers/main/model_doc/pvt)** (from Nanjing University, The University of Hong Kong etc.) released with the paper [Pyramid Vision Transformer: A Versatile Backbone for Dense Prediction without Convolutions](https://arxiv.org/pdf/2102.12122.pdf) by Wenhai Wang, Enze Xie, Xiang Li, Deng-Ping Fan, Kaitao Song, Ding Liang, Tong Lu, Ping Luo, Ling Shao.
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1. **[QDQBert](https://huggingface.co/docs/transformers/model_doc/qdqbert)** (from NVIDIA) released with the paper [Integer Quantization for Deep Learning Inference: Principles and Empirical Evaluation](https://arxiv.org/abs/2004.09602) by Hao Wu, Patrick Judd, Xiaojie Zhang, Mikhail Isaev and Paulius Micikevicius.
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1. **[RAG](https://huggingface.co/docs/transformers/model_doc/rag)** (from Facebook) released with the paper [Retrieval-Augmented Generation for Knowledge-Intensive NLP Tasks](https://arxiv.org/abs/2005.11401) by Patrick Lewis, Ethan Perez, Aleksandara Piktus, Fabio Petroni, Vladimir Karpukhin, Naman Goyal, Heinrich Küttler, Mike Lewis, Wen-tau Yih, Tim Rocktäschel, Sebastian Riedel, Douwe Kiela.
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1. **[REALM](https://huggingface.co/docs/transformers/model_doc/realm.html)** (from Google Research) released with the paper [REALM: Retrieval-Augmented Language Model Pre-Training](https://arxiv.org/abs/2002.08909) by Kelvin Guu, Kenton Lee, Zora Tung, Panupong Pasupat and Ming-Wei Chang.
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@ -410,6 +410,7 @@ Número actual de puntos de control: ** (from UCLA NLP) released with the paper [Unified Pre-training for Program Understanding and Generation](https://arxiv.org/abs/2103.06333) by Wasi Uddin Ahmad, Saikat Chakraborty, Baishakhi Ray, Kai-Wei Chang.
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1. **[PoolFormer](https://huggingface.co/docs/transformers/model_doc/poolformer)** (from Sea AI Labs) released with the paper [MetaFormer is Actually What You Need for Vision](https://arxiv.org/abs/2111.11418) by Yu, Weihao and Luo, Mi and Zhou, Pan and Si, Chenyang and Zhou, Yichen and Wang, Xinchao and Feng, Jiashi and Yan, Shuicheng.
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1. **[ProphetNet](https://huggingface.co/docs/transformers/model_doc/prophetnet)** (from Microsoft Research) released with the paper [ProphetNet: Predicting Future N-gram for Sequence-to-Sequence Pre-training](https://arxiv.org/abs/2001.04063) by Yu Yan, Weizhen Qi, Yeyun Gong, Dayiheng Liu, Nan Duan, Jiusheng Chen, Ruofei Zhang and Ming Zhou.
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1. **[PVT](https://huggingface.co/docs/transformers/main/model_doc/pvt)** (from Nanjing University, The University of Hong Kong etc.) released with the paper [Pyramid Vision Transformer: A Versatile Backbone for Dense Prediction without Convolutions](https://arxiv.org/pdf/2102.12122.pdf) by Wenhai Wang, Enze Xie, Xiang Li, Deng-Ping Fan, Kaitao Song, Ding Liang, Tong Lu, Ping Luo, Ling Shao.
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1. **[QDQBert](https://huggingface.co/docs/transformers/model_doc/qdqbert)** (from NVIDIA) released with the paper [Integer Quantization for Deep Learning Inference: Principles and Empirical Evaluation](https://arxiv.org/abs/2004.09602) by Hao Wu, Patrick Judd, Xiaojie Zhang, Mikhail Isaev and Paulius Micikevicius.
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1. **[RAG](https://huggingface.co/docs/transformers/model_doc/rag)** (from Facebook) released with the paper [Retrieval-Augmented Generation for Knowledge-Intensive NLP Tasks](https://arxiv.org/abs/2005.11401) by Patrick Lewis, Ethan Perez, Aleksandara Piktus, Fabio Petroni, Vladimir Karpukhin, Naman Goyal, Heinrich Küttler, Mike Lewis, Wen-tau Yih, Tim Rocktäschel, Sebastian Riedel, Douwe Kiela.
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1. **[REALM](https://huggingface.co/docs/transformers/model_doc/realm.html)** (from Google Research) released with the paper [REALM: Retrieval-Augmented Language Model Pre-Training](https://arxiv.org/abs/2002.08909) by Kelvin Guu, Kenton Lee, Zora Tung, Panupong Pasupat and Ming-Wei Chang.
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@ -382,6 +382,7 @@ conda install -c huggingface transformers
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1. **[PLBart](https://huggingface.co/docs/transformers/model_doc/plbart)** (UCLA NLP से) साथ वाला पेपर [प्रोग्राम अंडरस्टैंडिंग एंड जेनरेशन के लिए यूनिफाइड प्री-ट्रेनिंग](https://arxiv .org/abs/2103.06333) वसी उद्दीन अहमद, सैकत चक्रवर्ती, बैशाखी रे, काई-वेई चांग द्वारा।
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1. **[PoolFormer](https://huggingface.co/docs/transformers/model_doc/poolformer)** (from Sea AI Labs) released with the paper [MetaFormer is Actually What You Need for Vision](https://arxiv.org/abs/2111.11418) by Yu, Weihao and Luo, Mi and Zhou, Pan and Si, Chenyang and Zhou, Yichen and Wang, Xinchao and Feng, Jiashi and Yan, Shuicheng.
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1. **[ProphetNet](https://huggingface.co/docs/transformers/model_doc/prophetnet)** (माइक्रोसॉफ्ट रिसर्च से) साथ में पेपर [ProphetNet: प्रेडिक्टिंग फ्यूचर एन-ग्राम फॉर सीक्वेंस-टू-सीक्वेंस प्री-ट्रेनिंग ](https://arxiv.org/abs/2001.04063) यू यान, वीज़ेन क्यूई, येयुन गोंग, दयाहेंग लियू, नान डुआन, जिउशेंग चेन, रुओफ़ेई झांग और मिंग झोउ द्वारा पोस्ट किया गया।
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1. **[PVT](https://huggingface.co/docs/transformers/main/model_doc/pvt)** (Nanjing University, The University of Hong Kong etc. से) Wenhai Wang, Enze Xie, Xiang Li, Deng-Ping Fan, Kaitao Song, Ding Liang, Tong Lu, Ping Luo, Ling Shao. द्वाराअनुसंधान पत्र [Pyramid Vision Transformer: A Versatile Backbone for Dense Prediction without Convolutions](https://arxiv.org/pdf/2102.12122.pdf) के साथ जारी किया गया
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1. **[QDQBert](https://huggingface.co/docs/transformers/model_doc/qdqbert)** (NVIDIA से) साथ वाला पेपर [डीप लर्निंग इंफ़ेक्शन के लिए इंटीजर क्वांटिज़ेशन: प्रिंसिपल्स एंड एम्पिरिकल इवैल्यूएशन](https:// arxiv.org/abs/2004.09602) हाओ वू, पैट्रिक जुड, जिआओजी झांग, मिखाइल इसेव और पॉलियस माइकेविसियस द्वारा।
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1. **[RAG](https://huggingface.co/docs/transformers/model_doc/rag)** (फेसबुक से) साथ में कागज [रिट्रीवल-ऑगमेंटेड जेनरेशन फॉर नॉलेज-इंटेंसिव एनएलपी टास्क](https://arxiv .org/abs/2005.11401) पैट्रिक लुईस, एथन पेरेज़, अलेक्जेंड्रा पिक्टस, फैबियो पेट्रोनी, व्लादिमीर कारपुखिन, नमन गोयल, हेनरिक कुटलर, माइक लुईस, वेन-ताउ यिह, टिम रॉकटाशेल, सेबस्टियन रिडेल, डौवे कीला द्वारा।
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1. **[REALM](https://huggingface.co/docs/transformers/model_doc/realm.html)** (Google अनुसंधान से) केल्विन गु, केंटन ली, ज़ोरा तुंग, पानुपोंग पसुपत और मिंग-वेई चांग द्वारा साथ में दिया गया पेपर [REALM: रिट्रीवल-ऑगमेंटेड लैंग्वेज मॉडल प्री-ट्रेनिंग](https://arxiv.org/abs/2002.08909)।
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@ -444,6 +444,7 @@ Flax、PyTorch、TensorFlowをcondaでインストールする方法は、それ
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1. **[PLBart](https://huggingface.co/docs/transformers/model_doc/plbart)** (UCLA NLP から) Wasi Uddin Ahmad, Saikat Chakraborty, Baishakhi Ray, Kai-Wei Chang から公開された研究論文: [Unified Pre-training for Program Understanding and Generation](https://arxiv.org/abs/2103.06333)
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1. **[PoolFormer](https://huggingface.co/docs/transformers/model_doc/poolformer)** (Sea AI Labs から) Yu, Weihao and Luo, Mi and Zhou, Pan and Si, Chenyang and Zhou, Yichen and Wang, Xinchao and Feng, Jiashi and Yan, Shuicheng から公開された研究論文: [MetaFormer is Actually What You Need for Vision](https://arxiv.org/abs/2111.11418)
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1. **[ProphetNet](https://huggingface.co/docs/transformers/model_doc/prophetnet)** (Microsoft Research から) Yu Yan, Weizhen Qi, Yeyun Gong, Dayiheng Liu, Nan Duan, Jiusheng Chen, Ruofei Zhang and Ming Zhou から公開された研究論文: [ProphetNet: Predicting Future N-gram for Sequence-to-Sequence Pre-training](https://arxiv.org/abs/2001.04063)
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1. **[PVT](https://huggingface.co/docs/transformers/main/model_doc/pvt)** (Nanjing University, The University of Hong Kong etc. から) Wenhai Wang, Enze Xie, Xiang Li, Deng-Ping Fan, Kaitao Song, Ding Liang, Tong Lu, Ping Luo, Ling Shao. から公開された研究論文 [Pyramid Vision Transformer: A Versatile Backbone for Dense Prediction without Convolutions](https://arxiv.org/pdf/2102.12122.pdf)
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1. **[QDQBert](https://huggingface.co/docs/transformers/model_doc/qdqbert)** (NVIDIA から) Hao Wu, Patrick Judd, Xiaojie Zhang, Mikhail Isaev and Paulius Micikevicius から公開された研究論文: [Integer Quantization for Deep Learning Inference: Principles and Empirical Evaluation](https://arxiv.org/abs/2004.09602)
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1. **[RAG](https://huggingface.co/docs/transformers/model_doc/rag)** (Facebook から) Patrick Lewis, Ethan Perez, Aleksandara Piktus, Fabio Petroni, Vladimir Karpukhin, Naman Goyal, Heinrich Küttler, Mike Lewis, Wen-tau Yih, Tim Rocktäschel, Sebastian Riedel, Douwe Kiela から公開された研究論文: [Retrieval-Augmented Generation for Knowledge-Intensive NLP Tasks](https://arxiv.org/abs/2005.11401)
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1. **[REALM](https://huggingface.co/docs/transformers/model_doc/realm.html)** (Google Research から) Kelvin Guu, Kenton Lee, Zora Tung, Panupong Pasupat and Ming-Wei Chang から公開された研究論文: [REALM: Retrieval-Augmented Language Model Pre-Training](https://arxiv.org/abs/2002.08909)
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@ -359,6 +359,7 @@ Flax, PyTorch, TensorFlow 설치 페이지에서 이들을 conda로 설치하는
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1. **[PLBart](https://huggingface.co/docs/transformers/model_doc/plbart)** (UCLA NLP 에서) Wasi Uddin Ahmad, Saikat Chakraborty, Baishakhi Ray, Kai-Wei Chang 의 [Unified Pre-training for Program Understanding and Generation](https://arxiv.org/abs/2103.06333) 논문과 함께 발표했습니다.
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1. **[PoolFormer](https://huggingface.co/docs/transformers/model_doc/poolformer)** (Sea AI Labs 에서) Yu, Weihao and Luo, Mi and Zhou, Pan and Si, Chenyang and Zhou, Yichen and Wang, Xinchao and Feng, Jiashi and Yan, Shuicheng 의 [MetaFormer is Actually What You Need for Vision](https://arxiv.org/abs/2111.11418) 논문과 함께 발표했습니다.
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1. **[ProphetNet](https://huggingface.co/docs/transformers/model_doc/prophetnet)** (Microsoft Research 에서) Yu Yan, Weizhen Qi, Yeyun Gong, Dayiheng Liu, Nan Duan, Jiusheng Chen, Ruofei Zhang and Ming Zhou 의 [ProphetNet: Predicting Future N-gram for Sequence-to-Sequence Pre-training](https://arxiv.org/abs/2001.04063) 논문과 함께 발표했습니다.
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1. **[PVT](https://huggingface.co/docs/transformers/main/model_doc/pvt)** (Nanjing University, The University of Hong Kong etc. 에서 제공)은 Wenhai Wang, Enze Xie, Xiang Li, Deng-Ping Fan, Kaitao Song, Ding Liang, Tong Lu, Ping Luo, Ling Shao.의 [Pyramid Vision Transformer: A Versatile Backbone for Dense Prediction without Convolutions](https://arxiv.org/pdf/2102.12122.pdf)논문과 함께 발표했습니다.
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1. **[QDQBert](https://huggingface.co/docs/transformers/model_doc/qdqbert)** (NVIDIA 에서) Hao Wu, Patrick Judd, Xiaojie Zhang, Mikhail Isaev and Paulius Micikevicius 의 [Integer Quantization for Deep Learning Inference: Principles and Empirical Evaluation](https://arxiv.org/abs/2004.09602) 논문과 함께 발표했습니다.
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1. **[RAG](https://huggingface.co/docs/transformers/model_doc/rag)** (Facebook 에서) Patrick Lewis, Ethan Perez, Aleksandara Piktus, Fabio Petroni, Vladimir Karpukhin, Naman Goyal, Heinrich Küttler, Mike Lewis, Wen-tau Yih, Tim Rocktäschel, Sebastian Riedel, Douwe Kiela 의 [Retrieval-Augmented Generation for Knowledge-Intensive NLP Tasks](https://arxiv.org/abs/2005.11401) 논문과 함께 발표했습니다.
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1. **[REALM](https://huggingface.co/docs/transformers/model_doc/realm.html)** (Google Research 에서) Kelvin Guu, Kenton Lee, Zora Tung, Panupong Pasupat and Ming-Wei Chang 의 [REALM: Retrieval-Augmented Language Model Pre-Training](https://arxiv.org/abs/2002.08909) 논문과 함께 발표했습니다.
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@ -383,6 +383,7 @@ conda install -c huggingface transformers
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1. **[PLBart](https://huggingface.co/docs/transformers/model_doc/plbart)** (来自 UCLA NLP) 伴随论文 [Unified Pre-training for Program Understanding and Generation](https://arxiv.org/abs/2103.06333) 由 Wasi Uddin Ahmad, Saikat Chakraborty, Baishakhi Ray, Kai-Wei Chang 发布。
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1. **[PoolFormer](https://huggingface.co/docs/transformers/model_doc/poolformer)** (来自 Sea AI Labs) 伴随论文 [MetaFormer is Actually What You Need for Vision](https://arxiv.org/abs/2111.11418) 由 Yu, Weihao and Luo, Mi and Zhou, Pan and Si, Chenyang and Zhou, Yichen and Wang, Xinchao and Feng, Jiashi and Yan, Shuicheng 发布。
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1. **[ProphetNet](https://huggingface.co/docs/transformers/model_doc/prophetnet)** (来自 Microsoft Research) 伴随论文 [ProphetNet: Predicting Future N-gram for Sequence-to-Sequence Pre-training](https://arxiv.org/abs/2001.04063) 由 Yu Yan, Weizhen Qi, Yeyun Gong, Dayiheng Liu, Nan Duan, Jiusheng Chen, Ruofei Zhang and Ming Zhou 发布。
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1. **[PVT](https://huggingface.co/docs/transformers/main/model_doc/pvt)** (来自 Nanjing University, The University of Hong Kong etc.) 伴随论文 [Pyramid Vision Transformer: A Versatile Backbone for Dense Prediction without Convolutions](https://arxiv.org/pdf/2102.12122.pdf) 由 Wenhai Wang, Enze Xie, Xiang Li, Deng-Ping Fan, Kaitao Song, Ding Liang, Tong Lu, Ping Luo, Ling Shao 发布。
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1. **[QDQBert](https://huggingface.co/docs/transformers/model_doc/qdqbert)** (来自 NVIDIA) 伴随论文 [Integer Quantization for Deep Learning Inference: Principles and Empirical Evaluation](https://arxiv.org/abs/2004.09602) 由 Hao Wu, Patrick Judd, Xiaojie Zhang, Mikhail Isaev and Paulius Micikevicius 发布。
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1. **[RAG](https://huggingface.co/docs/transformers/model_doc/rag)** (来自 Facebook) 伴随论文 [Retrieval-Augmented Generation for Knowledge-Intensive NLP Tasks](https://arxiv.org/abs/2005.11401) 由 Patrick Lewis, Ethan Perez, Aleksandara Piktus, Fabio Petroni, Vladimir Karpukhin, Naman Goyal, Heinrich Küttler, Mike Lewis, Wen-tau Yih, Tim Rocktäschel, Sebastian Riedel, Douwe Kiela 发布。
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1. **[REALM](https://huggingface.co/docs/transformers/model_doc/realm.html)** (来自 Google Research) 伴随论文 [REALM: Retrieval-Augmented Language Model Pre-Training](https://arxiv.org/abs/2002.08909) 由 Kelvin Guu, Kenton Lee, Zora Tung, Panupong Pasupat and Ming-Wei Chang 发布。
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@ -395,6 +395,7 @@ conda install -c huggingface transformers
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1. **[PLBart](https://huggingface.co/docs/transformers/model_doc/plbart)** (from UCLA NLP) released with the paper [Unified Pre-training for Program Understanding and Generation](https://arxiv.org/abs/2103.06333) by Wasi Uddin Ahmad, Saikat Chakraborty, Baishakhi Ray, Kai-Wei Chang.
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1. **[PoolFormer](https://huggingface.co/docs/transformers/model_doc/poolformer)** (from Sea AI Labs) released with the paper [MetaFormer is Actually What You Need for Vision](https://arxiv.org/abs/2111.11418) by Yu, Weihao and Luo, Mi and Zhou, Pan and Si, Chenyang and Zhou, Yichen and Wang, Xinchao and Feng, Jiashi and Yan, Shuicheng.
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1. **[ProphetNet](https://huggingface.co/docs/transformers/model_doc/prophetnet)** (from Microsoft Research) released with the paper [ProphetNet: Predicting Future N-gram for Sequence-to-Sequence Pre-training](https://arxiv.org/abs/2001.04063) by Yu Yan, Weizhen Qi, Yeyun Gong, Dayiheng Liu, Nan Duan, Jiusheng Chen, Ruofei Zhang and Ming Zhou.
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1. **[PVT](https://huggingface.co/docs/transformers/main/model_doc/pvt)** (from Nanjing University, The University of Hong Kong etc.) released with the paper [Pyramid Vision Transformer: A Versatile Backbone for Dense Prediction without Convolutions](https://arxiv.org/pdf/2102.12122.pdf) by Wenhai Wang, Enze Xie, Xiang Li, Deng-Ping Fan, Kaitao Song, Ding Liang, Tong Lu, Ping Luo, Ling Shao.
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1. **[QDQBert](https://huggingface.co/docs/transformers/model_doc/qdqbert)** (from NVIDIA) released with the paper [Integer Quantization for Deep Learning Inference: Principles and Empirical Evaluation](https://arxiv.org/abs/2004.09602) by Hao Wu, Patrick Judd, Xiaojie Zhang, Mikhail Isaev and Paulius Micikevicius.
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1. **[RAG](https://huggingface.co/docs/transformers/model_doc/rag)** (from Facebook) released with the paper [Retrieval-Augmented Generation for Knowledge-Intensive NLP Tasks](https://arxiv.org/abs/2005.11401) by Patrick Lewis, Ethan Perez, Aleksandara Piktus, Fabio Petroni, Vladimir Karpukhin, Naman Goyal, Heinrich Küttler, Mike Lewis, Wen-tau Yih, Tim Rocktäschel, Sebastian Riedel, Douwe Kiela.
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1. **[REALM](https://huggingface.co/docs/transformers/model_doc/realm.html)** (from Google Research) released with the paper [REALM: Retrieval-Augmented Language Model Pre-Training](https://arxiv.org/abs/2002.08909) by Kelvin Guu, Kenton Lee, Zora Tung, Panupong Pasupat and Ming-Wei Chang.
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@ -514,6 +514,8 @@
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title: NAT
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- local: model_doc/poolformer
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title: PoolFormer
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- local: model_doc/pvt
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title: Pyramid Vision Transformer (PVT)
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- local: model_doc/regnet
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title: RegNet
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- local: model_doc/resnet
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@ -199,6 +199,7 @@ The documentation is organized into five sections:
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1. **[PLBart](model_doc/plbart)** (from UCLA NLP) released with the paper [Unified Pre-training for Program Understanding and Generation](https://arxiv.org/abs/2103.06333) by Wasi Uddin Ahmad, Saikat Chakraborty, Baishakhi Ray, Kai-Wei Chang.
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1. **[PoolFormer](model_doc/poolformer)** (from Sea AI Labs) released with the paper [MetaFormer is Actually What You Need for Vision](https://arxiv.org/abs/2111.11418) by Yu, Weihao and Luo, Mi and Zhou, Pan and Si, Chenyang and Zhou, Yichen and Wang, Xinchao and Feng, Jiashi and Yan, Shuicheng.
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1. **[ProphetNet](model_doc/prophetnet)** (from Microsoft Research) released with the paper [ProphetNet: Predicting Future N-gram for Sequence-to-Sequence Pre-training](https://arxiv.org/abs/2001.04063) by Yu Yan, Weizhen Qi, Yeyun Gong, Dayiheng Liu, Nan Duan, Jiusheng Chen, Ruofei Zhang and Ming Zhou.
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1. **[PVT](model_doc/pvt)** (from Nanjing University, The University of Hong Kong etc.) released with the paper [Pyramid Vision Transformer: A Versatile Backbone for Dense Prediction without Convolutions](https://arxiv.org/pdf/2102.12122.pdf) by Wenhai Wang, Enze Xie, Xiang Li, Deng-Ping Fan, Kaitao Song, Ding Liang, Tong Lu, Ping Luo, Ling Shao.
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1. **[QDQBert](model_doc/qdqbert)** (from NVIDIA) released with the paper [Integer Quantization for Deep Learning Inference: Principles and Empirical Evaluation](https://arxiv.org/abs/2004.09602) by Hao Wu, Patrick Judd, Xiaojie Zhang, Mikhail Isaev and Paulius Micikevicius.
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1. **[RAG](model_doc/rag)** (from Facebook) released with the paper [Retrieval-Augmented Generation for Knowledge-Intensive NLP Tasks](https://arxiv.org/abs/2005.11401) by Patrick Lewis, Ethan Perez, Aleksandara Piktus, Fabio Petroni, Vladimir Karpukhin, Naman Goyal, Heinrich Küttler, Mike Lewis, Wen-tau Yih, Tim Rocktäschel, Sebastian Riedel, Douwe Kiela.
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1. **[REALM](model_doc/realm.html)** (from Google Research) released with the paper [REALM: Retrieval-Augmented Language Model Pre-Training](https://arxiv.org/abs/2002.08909) by Kelvin Guu, Kenton Lee, Zora Tung, Panupong Pasupat and Ming-Wei Chang.
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@ -411,6 +412,7 @@ Flax), PyTorch, and/or TensorFlow.
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| PLBart | ✅ | ❌ | ❌ |
|
||||
| PoolFormer | ✅ | ❌ | ❌ |
|
||||
| ProphetNet | ✅ | ❌ | ❌ |
|
||||
| PVT | ✅ | ❌ | ❌ |
|
||||
| QDQBert | ✅ | ❌ | ❌ |
|
||||
| RAG | ✅ | ✅ | ❌ |
|
||||
| REALM | ✅ | ❌ | ❌ |
|
||||
|
||||
71
docs/source/en/model_doc/pvt.md
Normal file
71
docs/source/en/model_doc/pvt.md
Normal file
@ -0,0 +1,71 @@
|
||||
<!--Copyright 2023 The HuggingFace Team. All rights reserved.
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
|
||||
the License. You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
|
||||
an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||
specific language governing permissions and limitations under the License.
|
||||
-->
|
||||
|
||||
# Pyramid Vision Transformer (PVT)
|
||||
|
||||
## Overview
|
||||
|
||||
The PVT model was proposed in
|
||||
[Pyramid Vision Transformer: A Versatile Backbone for Dense Prediction without Convolutions](https://arxiv.org/abs/2102.12122)
|
||||
by Wenhai Wang, Enze Xie, Xiang Li, Deng-Ping Fan, Kaitao Song, Ding Liang, Tong Lu, Ping Luo, Ling Shao. The PVT is a type of
|
||||
vision transformer that utilizes a pyramid structure to make it an effective backbone for dense prediction tasks. Specifically
|
||||
it allows for more fine-grained inputs (4 x 4 pixels per patch) to be used, while simultaneously shrinking the sequence length
|
||||
of the Transformer as it deepens - reducing the computational cost. Additionally, a spatial-reduction attention (SRA) layer
|
||||
is used to further reduce the resource consumption when learning high-resolution features.
|
||||
|
||||
The abstract from the paper is the following:
|
||||
|
||||
*Although convolutional neural networks (CNNs) have achieved great success in computer vision, this work investigates a
|
||||
simpler, convolution-free backbone network useful for many dense prediction tasks. Unlike the recently proposed Vision
|
||||
Transformer (ViT) that was designed for image classification specifically, we introduce the Pyramid Vision Transformer
|
||||
(PVT), which overcomes the difficulties of porting Transformer to various dense prediction tasks. PVT has several
|
||||
merits compared to current state of the arts. Different from ViT that typically yields low resolution outputs and
|
||||
incurs high computational and memory costs, PVT not only can be trained on dense partitions of an image to achieve high
|
||||
output resolution, which is important for dense prediction, but also uses a progressive shrinking pyramid to reduce the
|
||||
computations of large feature maps. PVT inherits the advantages of both CNN and Transformer, making it a unified
|
||||
backbone for various vision tasks without convolutions, where it can be used as a direct replacement for CNN backbones.
|
||||
We validate PVT through extensive experiments, showing that it boosts the performance of many downstream tasks, including
|
||||
object detection, instance and semantic segmentation. For example, with a comparable number of parameters, PVT+RetinaNet
|
||||
achieves 40.4 AP on the COCO dataset, surpassing ResNet50+RetinNet (36.3 AP) by 4.1 absolute AP (see Figure 2). We hope
|
||||
that PVT could serve as an alternative and useful backbone for pixel-level predictions and facilitate future research.*
|
||||
|
||||
This model was contributed by [Xrenya](<https://huggingface.co/Xrenya). The original code can be found [here](https://github.com/whai362/PVT).
|
||||
|
||||
|
||||
- PVTv1 on ImageNet-1K
|
||||
|
||||
| **Model variant** |**Size** |**Acc@1**|**Params (M)**|
|
||||
|--------------------|:-------:|:-------:|:------------:|
|
||||
| PVT-Tiny | 224 | 75.1 | 13.2 |
|
||||
| PVT-Small | 224 | 79.8 | 24.5 |
|
||||
| PVT-Medium | 224 | 81.2 | 44.2 |
|
||||
| PVT-Large | 224 | 81.7 | 61.4 |
|
||||
|
||||
|
||||
## PvtConfig
|
||||
|
||||
[[autodoc]] PvtConfig
|
||||
|
||||
## PvtImageProcessor
|
||||
|
||||
[[autodoc]] PvtImageProcessor
|
||||
- preprocess
|
||||
|
||||
## PvtForImageClassification
|
||||
|
||||
[[autodoc]] PvtForImageClassification
|
||||
- forward
|
||||
|
||||
## PvtModel
|
||||
|
||||
[[autodoc]] PvtModel
|
||||
- forward
|
||||
@ -34,7 +34,8 @@ The task illustrated in this tutorial is supported by the following model archit
|
||||
|
||||
<!--This tip is automatically generated by `make fix-copies`, do not fill manually!-->
|
||||
|
||||
[BEiT](../model_doc/beit), [BiT](../model_doc/bit), [ConvNeXT](../model_doc/convnext), [ConvNeXTV2](../model_doc/convnextv2), [CvT](../model_doc/cvt), [Data2VecVision](../model_doc/data2vec-vision), [DeiT](../model_doc/deit), [DiNAT](../model_doc/dinat), [DINOv2](../model_doc/dinov2), [EfficientFormer](../model_doc/efficientformer), [EfficientNet](../model_doc/efficientnet), [FocalNet](../model_doc/focalnet), [ImageGPT](../model_doc/imagegpt), [LeViT](../model_doc/levit), [MobileNetV1](../model_doc/mobilenet_v1), [MobileNetV2](../model_doc/mobilenet_v2), [MobileViT](../model_doc/mobilevit), [MobileViTV2](../model_doc/mobilevitv2), [NAT](../model_doc/nat), [Perceiver](../model_doc/perceiver), [PoolFormer](../model_doc/poolformer), [RegNet](../model_doc/regnet), [ResNet](../model_doc/resnet), [SegFormer](../model_doc/segformer), [SwiftFormer](../model_doc/swiftformer), [Swin Transformer](../model_doc/swin), [Swin Transformer V2](../model_doc/swinv2), [VAN](../model_doc/van), [ViT](../model_doc/vit), [ViT Hybrid](../model_doc/vit_hybrid), [ViTMSN](../model_doc/vit_msn)
|
||||
[BEiT](../model_doc/beit), [BiT](../model_doc/bit), [ConvNeXT](../model_doc/convnext), [ConvNeXTV2](../model_doc/convnextv2), [CvT](../model_doc/cvt), [Data2VecVision](../model_doc/data2vec-vision), [DeiT](../model_doc/deit), [DiNAT](../model_doc/dinat), [DINOv2](../model_doc/dinov2), [EfficientFormer](../model_doc/efficientformer), [EfficientNet](../model_doc/efficientnet), [FocalNet](../model_doc/focalnet), [ImageGPT](../model_doc/imagegpt), [LeViT](../model_doc/levit), [MobileNetV1](../model_doc/mobilenet_v1), [MobileNetV2](../model_doc/mobilenet_v2), [MobileViT](../model_doc/mobilevit), [MobileViTV2](../model_doc/mobilevitv2), [NAT](../model_doc/nat), [Perceiver](../model_doc/perceiver), [PoolFormer](../model_doc/poolformer), [PVT](../model_doc/pvt), [RegNet](../model_doc/regnet), [ResNet](../model_doc/resnet), [SegFormer](../model_doc/segformer), [SwiftFormer](../model_doc/swiftformer), [Swin Transformer](../model_doc/swin), [Swin Transformer V2](../model_doc/swinv2), [VAN](../model_doc/van), [ViT](../model_doc/vit), [ViT Hybrid](../model_doc/vit_hybrid), [ViTMSN](../model_doc/vit_msn)
|
||||
|
||||
<!--End of the generated tip-->
|
||||
|
||||
</Tip>
|
||||
|
||||
@ -469,6 +469,7 @@ _import_structure = {
|
||||
"models.plbart": ["PLBART_PRETRAINED_CONFIG_ARCHIVE_MAP", "PLBartConfig"],
|
||||
"models.poolformer": ["POOLFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP", "PoolFormerConfig"],
|
||||
"models.prophetnet": ["PROPHETNET_PRETRAINED_CONFIG_ARCHIVE_MAP", "ProphetNetConfig", "ProphetNetTokenizer"],
|
||||
"models.pvt": ["PVT_PRETRAINED_CONFIG_ARCHIVE_MAP", "PvtConfig"],
|
||||
"models.qdqbert": ["QDQBERT_PRETRAINED_CONFIG_ARCHIVE_MAP", "QDQBertConfig"],
|
||||
"models.rag": ["RagConfig", "RagRetriever", "RagTokenizer"],
|
||||
"models.realm": ["REALM_PRETRAINED_CONFIG_ARCHIVE_MAP", "RealmConfig", "RealmTokenizer"],
|
||||
@ -948,6 +949,7 @@ else:
|
||||
_import_structure["models.perceiver"].extend(["PerceiverFeatureExtractor", "PerceiverImageProcessor"])
|
||||
_import_structure["models.pix2struct"].extend(["Pix2StructImageProcessor"])
|
||||
_import_structure["models.poolformer"].extend(["PoolFormerFeatureExtractor", "PoolFormerImageProcessor"])
|
||||
_import_structure["models.pvt"].extend(["PvtImageProcessor"])
|
||||
_import_structure["models.sam"].extend(["SamImageProcessor"])
|
||||
_import_structure["models.segformer"].extend(["SegformerFeatureExtractor", "SegformerImageProcessor"])
|
||||
_import_structure["models.swin2sr"].append("Swin2SRImageProcessor")
|
||||
@ -2398,6 +2400,14 @@ else:
|
||||
"ProphetNetPreTrainedModel",
|
||||
]
|
||||
)
|
||||
_import_structure["models.pvt"].extend(
|
||||
[
|
||||
"PVT_PRETRAINED_MODEL_ARCHIVE_LIST",
|
||||
"PvtForImageClassification",
|
||||
"PvtModel",
|
||||
"PvtPreTrainedModel",
|
||||
]
|
||||
)
|
||||
_import_structure["models.qdqbert"].extend(
|
||||
[
|
||||
"QDQBERT_PRETRAINED_MODEL_ARCHIVE_LIST",
|
||||
@ -4414,6 +4424,7 @@ if TYPE_CHECKING:
|
||||
from .models.plbart import PLBART_PRETRAINED_CONFIG_ARCHIVE_MAP, PLBartConfig
|
||||
from .models.poolformer import POOLFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP, PoolFormerConfig
|
||||
from .models.prophetnet import PROPHETNET_PRETRAINED_CONFIG_ARCHIVE_MAP, ProphetNetConfig, ProphetNetTokenizer
|
||||
from .models.pvt import PVT_PRETRAINED_CONFIG_ARCHIVE_MAP, PvtConfig
|
||||
from .models.qdqbert import QDQBERT_PRETRAINED_CONFIG_ARCHIVE_MAP, QDQBertConfig
|
||||
from .models.rag import RagConfig, RagRetriever, RagTokenizer
|
||||
from .models.realm import REALM_PRETRAINED_CONFIG_ARCHIVE_MAP, RealmConfig, RealmTokenizer
|
||||
@ -4838,6 +4849,7 @@ if TYPE_CHECKING:
|
||||
from .models.perceiver import PerceiverFeatureExtractor, PerceiverImageProcessor
|
||||
from .models.pix2struct import Pix2StructImageProcessor
|
||||
from .models.poolformer import PoolFormerFeatureExtractor, PoolFormerImageProcessor
|
||||
from .models.pvt import PvtImageProcessor
|
||||
from .models.sam import SamImageProcessor
|
||||
from .models.segformer import SegformerFeatureExtractor, SegformerImageProcessor
|
||||
from .models.swin2sr import Swin2SRImageProcessor
|
||||
@ -6040,6 +6052,12 @@ if TYPE_CHECKING:
|
||||
ProphetNetModel,
|
||||
ProphetNetPreTrainedModel,
|
||||
)
|
||||
from .models.pvt import (
|
||||
PVT_PRETRAINED_MODEL_ARCHIVE_LIST,
|
||||
PvtForImageClassification,
|
||||
PvtModel,
|
||||
PvtPreTrainedModel,
|
||||
)
|
||||
from .models.qdqbert import (
|
||||
QDQBERT_PRETRAINED_MODEL_ARCHIVE_LIST,
|
||||
QDQBertForMaskedLM,
|
||||
|
||||
@ -156,6 +156,7 @@ from . import (
|
||||
plbart,
|
||||
poolformer,
|
||||
prophetnet,
|
||||
pvt,
|
||||
qdqbert,
|
||||
rag,
|
||||
realm,
|
||||
|
||||
@ -161,6 +161,7 @@ CONFIG_MAPPING_NAMES = OrderedDict(
|
||||
("plbart", "PLBartConfig"),
|
||||
("poolformer", "PoolFormerConfig"),
|
||||
("prophetnet", "ProphetNetConfig"),
|
||||
("pvt", "PvtConfig"),
|
||||
("qdqbert", "QDQBertConfig"),
|
||||
("rag", "RagConfig"),
|
||||
("realm", "RealmConfig"),
|
||||
@ -357,6 +358,7 @@ CONFIG_ARCHIVE_MAP_MAPPING_NAMES = OrderedDict(
|
||||
("plbart", "PLBART_PRETRAINED_CONFIG_ARCHIVE_MAP"),
|
||||
("poolformer", "POOLFORMER_PRETRAINED_CONFIG_ARCHIVE_MAP"),
|
||||
("prophetnet", "PROPHETNET_PRETRAINED_CONFIG_ARCHIVE_MAP"),
|
||||
("pvt", "PVT_PRETRAINED_CONFIG_ARCHIVE_MAP"),
|
||||
("qdqbert", "QDQBERT_PRETRAINED_CONFIG_ARCHIVE_MAP"),
|
||||
("realm", "REALM_PRETRAINED_CONFIG_ARCHIVE_MAP"),
|
||||
("regnet", "REGNET_PRETRAINED_CONFIG_ARCHIVE_MAP"),
|
||||
@ -571,6 +573,7 @@ MODEL_NAMES_MAPPING = OrderedDict(
|
||||
("plbart", "PLBart"),
|
||||
("poolformer", "PoolFormer"),
|
||||
("prophetnet", "ProphetNet"),
|
||||
("pvt", "PVT"),
|
||||
("qdqbert", "QDQBert"),
|
||||
("rag", "RAG"),
|
||||
("realm", "REALM"),
|
||||
|
||||
@ -85,6 +85,7 @@ IMAGE_PROCESSOR_MAPPING_NAMES = OrderedDict(
|
||||
("perceiver", "PerceiverImageProcessor"),
|
||||
("pix2struct", "Pix2StructImageProcessor"),
|
||||
("poolformer", "PoolFormerImageProcessor"),
|
||||
("pvt", "PvtImageProcessor"),
|
||||
("regnet", "ConvNextImageProcessor"),
|
||||
("resnet", "ConvNextImageProcessor"),
|
||||
("sam", "SamImageProcessor"),
|
||||
|
||||
@ -155,6 +155,7 @@ MODEL_MAPPING_NAMES = OrderedDict(
|
||||
("plbart", "PLBartModel"),
|
||||
("poolformer", "PoolFormerModel"),
|
||||
("prophetnet", "ProphetNetModel"),
|
||||
("pvt", "PvtModel"),
|
||||
("qdqbert", "QDQBertModel"),
|
||||
("reformer", "ReformerModel"),
|
||||
("regnet", "RegNetModel"),
|
||||
@ -482,6 +483,7 @@ MODEL_FOR_IMAGE_CLASSIFICATION_MAPPING_NAMES = OrderedDict(
|
||||
),
|
||||
),
|
||||
("poolformer", "PoolFormerForImageClassification"),
|
||||
("pvt", "PvtForImageClassification"),
|
||||
("regnet", "RegNetForImageClassification"),
|
||||
("resnet", "ResNetForImageClassification"),
|
||||
("segformer", "SegformerForImageClassification"),
|
||||
|
||||
80
src/transformers/models/pvt/__init__.py
Normal file
80
src/transformers/models/pvt/__init__.py
Normal file
@ -0,0 +1,80 @@
|
||||
# coding=utf-8
|
||||
# Copyright 2023 Authors: Wenhai Wang, Enze Xie, Xiang Li, Deng-Ping Fan,
|
||||
# Kaitao Song, Ding Liang, Tong Lu, Ping Luo, Ling Shao and The HuggingFace Inc. team.
|
||||
# All rights reserved.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
from typing import TYPE_CHECKING
|
||||
|
||||
from ...utils import (
|
||||
OptionalDependencyNotAvailable,
|
||||
_LazyModule,
|
||||
is_torch_available,
|
||||
is_vision_available,
|
||||
)
|
||||
|
||||
|
||||
_import_structure = {
|
||||
"configuration_pvt": ["PVT_PRETRAINED_CONFIG_ARCHIVE_MAP", "PvtConfig", "PvtOnnxConfig"],
|
||||
}
|
||||
|
||||
try:
|
||||
if not is_vision_available():
|
||||
raise OptionalDependencyNotAvailable()
|
||||
except OptionalDependencyNotAvailable:
|
||||
pass
|
||||
else:
|
||||
_import_structure["image_processing_pvt"] = ["PvtImageProcessor"]
|
||||
|
||||
try:
|
||||
if not is_torch_available():
|
||||
raise OptionalDependencyNotAvailable()
|
||||
except OptionalDependencyNotAvailable:
|
||||
pass
|
||||
else:
|
||||
_import_structure["modeling_pvt"] = [
|
||||
"PVT_PRETRAINED_MODEL_ARCHIVE_LIST",
|
||||
"PvtForImageClassification",
|
||||
"PvtModel",
|
||||
"PvtPreTrainedModel",
|
||||
]
|
||||
|
||||
|
||||
if TYPE_CHECKING:
|
||||
from .configuration_pvt import PVT_PRETRAINED_CONFIG_ARCHIVE_MAP, PvtConfig, PvtOnnxConfig
|
||||
|
||||
try:
|
||||
if not is_vision_available():
|
||||
raise OptionalDependencyNotAvailable()
|
||||
except OptionalDependencyNotAvailable:
|
||||
pass
|
||||
else:
|
||||
from .image_processing_pvt import PvtImageProcessor
|
||||
|
||||
try:
|
||||
if not is_torch_available():
|
||||
raise OptionalDependencyNotAvailable()
|
||||
except OptionalDependencyNotAvailable:
|
||||
pass
|
||||
else:
|
||||
from .modeling_pvt import (
|
||||
PVT_PRETRAINED_MODEL_ARCHIVE_LIST,
|
||||
PvtForImageClassification,
|
||||
PvtModel,
|
||||
PvtPreTrainedModel,
|
||||
)
|
||||
|
||||
else:
|
||||
import sys
|
||||
|
||||
sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__)
|
||||
163
src/transformers/models/pvt/configuration_pvt.py
Normal file
163
src/transformers/models/pvt/configuration_pvt.py
Normal file
@ -0,0 +1,163 @@
|
||||
# coding=utf-8
|
||||
# Copyright 2023 Authors: Wenhai Wang, Enze Xie, Xiang Li, Deng-Ping Fan,
|
||||
# Kaitao Song, Ding Liang, Tong Lu, Ping Luo, Ling Shao and The HuggingFace Inc. team.
|
||||
# All rights reserved.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
""" Pvt model configuration"""
|
||||
|
||||
from collections import OrderedDict
|
||||
from typing import Callable, List, Mapping
|
||||
|
||||
from packaging import version
|
||||
|
||||
from ...configuration_utils import PretrainedConfig
|
||||
from ...onnx import OnnxConfig
|
||||
from ...utils import logging
|
||||
|
||||
|
||||
logger = logging.get_logger(__name__)
|
||||
|
||||
PVT_PRETRAINED_CONFIG_ARCHIVE_MAP = {
|
||||
"pvt-tiny-224": "https://huggingface.co/Zetatech/pvt-tiny-224",
|
||||
# See all PVT models at https://huggingface.co/models?filter=pvt
|
||||
}
|
||||
|
||||
|
||||
class PvtConfig(PretrainedConfig):
|
||||
r"""
|
||||
This is the configuration class to store the configuration of a [`PvtModel`]. It is used to instantiate an Pvt
|
||||
model according to the specified arguments, defining the model architecture. Instantiating a configuration with the
|
||||
defaults will yield a similar configuration to that of the Pvt
|
||||
[Xrenya/pvt-tiny-224](https://huggingface.co/Xrenya/pvt-tiny-224) architecture.
|
||||
|
||||
Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
|
||||
documentation from [`PretrainedConfig`] for more information.
|
||||
|
||||
Args:
|
||||
image_size (`int`, *optional*, defaults to 224):
|
||||
The input image size
|
||||
num_channels (`int`, *optional*, defaults to 3):
|
||||
The number of input channels.
|
||||
num_encoder_blocks (`[int]`, *optional*., defaults to 4):
|
||||
The number of encoder blocks (i.e. stages in the Mix Transformer encoder).
|
||||
depths (`List[int]`, *optional*, defaults to `[2, 2, 2, 2]`):
|
||||
The number of layers in each encoder block.
|
||||
sequence_reduction_ratios (`List[int]`, *optional*, defaults to `[8, 4, 2, 1]`):
|
||||
Sequence reduction ratios in each encoder block.
|
||||
hidden_sizes (`List[int]`, *optional*, defaults to `[64, 128, 320, 512]`):
|
||||
Dimension of each of the encoder blocks.
|
||||
patch_sizes (`List[int]`, *optional*, defaults to `[4, 2, 2, 2]`):
|
||||
Patch size before each encoder block.
|
||||
strides (`List[int]`, *optional*, defaults to `[4, 2, 2, 2]`):
|
||||
Stride before each encoder block.
|
||||
num_attention_heads (`List[int]`, *optional*, defaults to `[1, 2, 5, 8]`):
|
||||
Number of attention heads for each attention layer in each block of the Transformer encoder.
|
||||
mlp_ratios (`List[int]`, *optional*, defaults to `[8, 8, 4, 4]`):
|
||||
Ratio of the size of the hidden layer compared to the size of the input layer of the Mix FFNs in the
|
||||
encoder blocks.
|
||||
hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`):
|
||||
The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`,
|
||||
`"relu"`, `"selu"` and `"gelu_new"` are supported.
|
||||
hidden_dropout_prob (`float`, *optional*, defaults to 0.0):
|
||||
The dropout probability for all fully connected layers in the embeddings, encoder, and pooler.
|
||||
attention_probs_dropout_prob (`float`, *optional*, defaults to 0.0):
|
||||
The dropout ratio for the attention probabilities.
|
||||
initializer_range (`float`, *optional*, defaults to 0.02):
|
||||
The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
|
||||
drop_path_rate (`float`, *optional*, defaults to 0.0):
|
||||
The dropout probability for stochastic depth, used in the blocks of the Transformer encoder.
|
||||
layer_norm_eps (`float`, *optional*, defaults to 1e-6):
|
||||
The epsilon used by the layer normalization layers.
|
||||
qkv_bias (`bool`, *optional*, defaults to `True`):
|
||||
Whether or not a learnable bias should be added to the queries, keys and values.
|
||||
num_labels ('int', *optional*, defaults to 1000)
|
||||
The number of classes.
|
||||
Example:
|
||||
|
||||
```python
|
||||
>>> from transformers import PvtModel, PvtConfig
|
||||
|
||||
>>> # Initializing a PVT Xrenya/pvt-tiny-224 style configuration
|
||||
>>> configuration = PvtConfig()
|
||||
|
||||
>>> # Initializing a model from the Xrenya/pvt-tiny-224 style configuration
|
||||
>>> model = PvtModel(configuration)
|
||||
|
||||
>>> # Accessing the model configuration
|
||||
>>> configuration = model.config
|
||||
```"""
|
||||
model_type = "pvt"
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
image_size: int = 224,
|
||||
num_channels: int = 3,
|
||||
num_encoder_blocks: int = 4,
|
||||
depths: List[int] = [2, 2, 2, 2],
|
||||
sequence_reduction_ratios: List[int] = [8, 4, 2, 1],
|
||||
hidden_sizes: List[int] = [64, 128, 320, 512],
|
||||
patch_sizes: List[int] = [4, 2, 2, 2],
|
||||
strides: List[int] = [4, 2, 2, 2],
|
||||
num_attention_heads: List[int] = [1, 2, 5, 8],
|
||||
mlp_ratios: List[int] = [8, 8, 4, 4],
|
||||
hidden_act: Mapping[str, Callable] = "gelu",
|
||||
hidden_dropout_prob: float = 0.0,
|
||||
attention_probs_dropout_prob: float = 0.0,
|
||||
initializer_range: float = 0.02,
|
||||
drop_path_rate: float = 0.0,
|
||||
layer_norm_eps: float = 1e-6,
|
||||
qkv_bias: bool = True,
|
||||
num_labels: int = 1000,
|
||||
**kwargs,
|
||||
):
|
||||
super().__init__(**kwargs)
|
||||
|
||||
self.image_size = image_size
|
||||
self.num_channels = num_channels
|
||||
self.num_encoder_blocks = num_encoder_blocks
|
||||
self.depths = depths
|
||||
self.sequence_reduction_ratios = sequence_reduction_ratios
|
||||
self.hidden_sizes = hidden_sizes
|
||||
self.patch_sizes = patch_sizes
|
||||
self.strides = strides
|
||||
self.mlp_ratios = mlp_ratios
|
||||
self.num_attention_heads = num_attention_heads
|
||||
self.hidden_act = hidden_act
|
||||
self.hidden_dropout_prob = hidden_dropout_prob
|
||||
self.attention_probs_dropout_prob = attention_probs_dropout_prob
|
||||
self.initializer_range = initializer_range
|
||||
self.drop_path_rate = drop_path_rate
|
||||
self.layer_norm_eps = layer_norm_eps
|
||||
self.num_labels = num_labels
|
||||
self.qkv_bias = qkv_bias
|
||||
|
||||
|
||||
class PvtOnnxConfig(OnnxConfig):
|
||||
torch_onnx_minimum_version = version.parse("1.11")
|
||||
|
||||
@property
|
||||
def inputs(self) -> Mapping[str, Mapping[int, str]]:
|
||||
return OrderedDict(
|
||||
[
|
||||
("pixel_values", {0: "batch", 1: "num_channels", 2: "height", 3: "width"}),
|
||||
]
|
||||
)
|
||||
|
||||
@property
|
||||
def atol_for_validation(self) -> float:
|
||||
return 1e-4
|
||||
|
||||
@property
|
||||
def default_onnx_opset(self) -> int:
|
||||
return 12
|
||||
227
src/transformers/models/pvt/convert_pvt_to_pytorch.py
Normal file
227
src/transformers/models/pvt/convert_pvt_to_pytorch.py
Normal file
@ -0,0 +1,227 @@
|
||||
# coding=utf-8
|
||||
# Copyright 2023 Authors: Wenhai Wang, Enze Xie, Xiang Li, Deng-Ping Fan,
|
||||
# Kaitao Song, Ding Liang, Tong Lu, Ping Luo, Ling Shao and The HuggingFace Inc. team.
|
||||
# All rights reserved.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
"""Convert Pvt checkpoints from the original library."""
|
||||
|
||||
|
||||
import argparse
|
||||
from pathlib import Path
|
||||
|
||||
import requests
|
||||
import torch
|
||||
from PIL import Image
|
||||
|
||||
from transformers import PvtConfig, PvtForImageClassification, PvtImageProcessor
|
||||
from transformers.utils import logging
|
||||
|
||||
|
||||
logging.set_verbosity_info()
|
||||
logger = logging.get_logger(__name__)
|
||||
|
||||
|
||||
# here we list all keys to be renamed (original name on the left, our name on the right)
|
||||
def create_rename_keys(config):
|
||||
rename_keys = []
|
||||
for i in range(config.num_encoder_blocks):
|
||||
# Remane embedings' paramters
|
||||
rename_keys.append((f"pos_embed{i + 1}", f"pvt.encoder.patch_embeddings.{i}.position_embeddings"))
|
||||
|
||||
rename_keys.append((f"patch_embed{i + 1}.proj.weight", f"pvt.encoder.patch_embeddings.{i}.projection.weight"))
|
||||
rename_keys.append((f"patch_embed{i + 1}.proj.bias", f"pvt.encoder.patch_embeddings.{i}.projection.bias"))
|
||||
rename_keys.append((f"patch_embed{i + 1}.norm.weight", f"pvt.encoder.patch_embeddings.{i}.layer_norm.weight"))
|
||||
rename_keys.append((f"patch_embed{i + 1}.norm.bias", f"pvt.encoder.patch_embeddings.{i}.layer_norm.bias"))
|
||||
|
||||
for j in range(config.depths[i]):
|
||||
# Rename blocks' parameters
|
||||
rename_keys.append(
|
||||
(f"block{i + 1}.{j}.attn.q.weight", f"pvt.encoder.block.{i}.{j}.attention.self.query.weight")
|
||||
)
|
||||
rename_keys.append(
|
||||
(f"block{i + 1}.{j}.attn.q.bias", f"pvt.encoder.block.{i}.{j}.attention.self.query.bias")
|
||||
)
|
||||
rename_keys.append(
|
||||
(f"block{i + 1}.{j}.attn.kv.weight", f"pvt.encoder.block.{i}.{j}.attention.self.kv.weight")
|
||||
)
|
||||
rename_keys.append((f"block{i + 1}.{j}.attn.kv.bias", f"pvt.encoder.block.{i}.{j}.attention.self.kv.bias"))
|
||||
|
||||
if config.sequence_reduction_ratios[i] > 1:
|
||||
rename_keys.append(
|
||||
(
|
||||
f"block{i + 1}.{j}.attn.norm.weight",
|
||||
f"pvt.encoder.block.{i}.{j}.attention.self.layer_norm.weight",
|
||||
)
|
||||
)
|
||||
rename_keys.append(
|
||||
(f"block{i + 1}.{j}.attn.norm.bias", f"pvt.encoder.block.{i}.{j}.attention.self.layer_norm.bias")
|
||||
)
|
||||
rename_keys.append(
|
||||
(
|
||||
f"block{i + 1}.{j}.attn.sr.weight",
|
||||
f"pvt.encoder.block.{i}.{j}.attention.self.sequence_reduction.weight",
|
||||
)
|
||||
)
|
||||
rename_keys.append(
|
||||
(
|
||||
f"block{i + 1}.{j}.attn.sr.bias",
|
||||
f"pvt.encoder.block.{i}.{j}.attention.self.sequence_reduction.bias",
|
||||
)
|
||||
)
|
||||
|
||||
rename_keys.append(
|
||||
(f"block{i + 1}.{j}.attn.proj.weight", f"pvt.encoder.block.{i}.{j}.attention.output.dense.weight")
|
||||
)
|
||||
rename_keys.append(
|
||||
(f"block{i + 1}.{j}.attn.proj.bias", f"pvt.encoder.block.{i}.{j}.attention.output.dense.bias")
|
||||
)
|
||||
|
||||
rename_keys.append((f"block{i + 1}.{j}.norm1.weight", f"pvt.encoder.block.{i}.{j}.layer_norm_1.weight"))
|
||||
rename_keys.append((f"block{i + 1}.{j}.norm1.bias", f"pvt.encoder.block.{i}.{j}.layer_norm_1.bias"))
|
||||
|
||||
rename_keys.append((f"block{i + 1}.{j}.norm2.weight", f"pvt.encoder.block.{i}.{j}.layer_norm_2.weight"))
|
||||
rename_keys.append((f"block{i + 1}.{j}.norm2.bias", f"pvt.encoder.block.{i}.{j}.layer_norm_2.bias"))
|
||||
|
||||
rename_keys.append((f"block{i + 1}.{j}.mlp.fc1.weight", f"pvt.encoder.block.{i}.{j}.mlp.dense1.weight"))
|
||||
rename_keys.append((f"block{i + 1}.{j}.mlp.fc1.bias", f"pvt.encoder.block.{i}.{j}.mlp.dense1.bias"))
|
||||
rename_keys.append((f"block{i + 1}.{j}.mlp.fc2.weight", f"pvt.encoder.block.{i}.{j}.mlp.dense2.weight"))
|
||||
rename_keys.append((f"block{i + 1}.{j}.mlp.fc2.bias", f"pvt.encoder.block.{i}.{j}.mlp.dense2.bias"))
|
||||
|
||||
# Rename cls token
|
||||
rename_keys.extend(
|
||||
[
|
||||
("cls_token", "pvt.encoder.patch_embeddings.3.cls_token"),
|
||||
]
|
||||
)
|
||||
# Rename norm layer and classifier layer
|
||||
rename_keys.extend(
|
||||
[
|
||||
("norm.weight", "pvt.encoder.layer_norm.weight"),
|
||||
("norm.bias", "pvt.encoder.layer_norm.bias"),
|
||||
("head.weight", "classifier.weight"),
|
||||
("head.bias", "classifier.bias"),
|
||||
]
|
||||
)
|
||||
|
||||
return rename_keys
|
||||
|
||||
|
||||
# we split up the matrix of each encoder layer into queries, keys and values
|
||||
def read_in_k_v(state_dict, config):
|
||||
# for each of the encoder blocks:
|
||||
for i in range(config.num_encoder_blocks):
|
||||
for j in range(config.depths[i]):
|
||||
# read in weights + bias of keys and values (which is a single matrix in the original implementation)
|
||||
kv_weight = state_dict.pop(f"pvt.encoder.block.{i}.{j}.attention.self.kv.weight")
|
||||
kv_bias = state_dict.pop(f"pvt.encoder.block.{i}.{j}.attention.self.kv.bias")
|
||||
# next, add keys and values (in that order) to the state dict
|
||||
state_dict[f"pvt.encoder.block.{i}.{j}.attention.self.key.weight"] = kv_weight[: config.hidden_sizes[i], :]
|
||||
state_dict[f"pvt.encoder.block.{i}.{j}.attention.self.key.bias"] = kv_bias[: config.hidden_sizes[i]]
|
||||
|
||||
state_dict[f"pvt.encoder.block.{i}.{j}.attention.self.value.weight"] = kv_weight[
|
||||
config.hidden_sizes[i] :, :
|
||||
]
|
||||
state_dict[f"pvt.encoder.block.{i}.{j}.attention.self.value.bias"] = kv_bias[config.hidden_sizes[i] :]
|
||||
|
||||
|
||||
def rename_key(dct, old, new):
|
||||
val = dct.pop(old)
|
||||
dct[new] = val
|
||||
|
||||
|
||||
# We will verify our results on an image of cute cats
|
||||
def prepare_img():
|
||||
url = "http://images.cocodataset.org/val2017/000000039769.jpg"
|
||||
im = Image.open(requests.get(url, stream=True).raw)
|
||||
return im
|
||||
|
||||
|
||||
@torch.no_grad()
|
||||
def convert_pvt_checkpoint(pvt_size, pvt_checkpoint, pytorch_dump_folder_path):
|
||||
"""
|
||||
Copy/paste/tweak model's weights to our PVT structure.
|
||||
"""
|
||||
|
||||
# define default Pvt configuration
|
||||
if pvt_size == "tiny":
|
||||
config_path = "Zetatech/pvt-tiny-224"
|
||||
elif pvt_size == "small":
|
||||
config_path = "Zetatech/pvt-small-224"
|
||||
elif pvt_size == "medium":
|
||||
config_path = "Zetatech/pvt-medium-224"
|
||||
elif pvt_size == "large":
|
||||
config_path = "Zetatech/pvt-large-224"
|
||||
else:
|
||||
raise ValueError(f"Available model's size: 'tiny', 'small', 'medium', 'large', but " f"'{pvt_size}' was given")
|
||||
config = PvtConfig(name_or_path=config_path)
|
||||
# load original model from https://github.com/whai362/PVT
|
||||
state_dict = torch.load(pvt_checkpoint, map_location="cpu")
|
||||
|
||||
rename_keys = create_rename_keys(config)
|
||||
for src, dest in rename_keys:
|
||||
rename_key(state_dict, src, dest)
|
||||
read_in_k_v(state_dict, config)
|
||||
|
||||
# load HuggingFace model
|
||||
model = PvtForImageClassification(config).eval()
|
||||
model.load_state_dict(state_dict)
|
||||
|
||||
# Check outputs on an image, prepared by PVTFeatureExtractor
|
||||
image_processor = PvtImageProcessor(size=config.image_size)
|
||||
encoding = image_processor(images=prepare_img(), return_tensors="pt")
|
||||
pixel_values = encoding["pixel_values"]
|
||||
outputs = model(pixel_values)
|
||||
logits = outputs.logits.detach().cpu()
|
||||
|
||||
if pvt_size == "tiny":
|
||||
expected_slice_logits = torch.tensor([-1.4192, -1.9158, -0.9702])
|
||||
elif pvt_size == "small":
|
||||
expected_slice_logits = torch.tensor([0.4353, -0.1960, -0.2373])
|
||||
elif pvt_size == "medium":
|
||||
expected_slice_logits = torch.tensor([-0.2914, -0.2231, 0.0321])
|
||||
elif pvt_size == "large":
|
||||
expected_slice_logits = torch.tensor([0.3740, -0.7739, -0.4214])
|
||||
else:
|
||||
raise ValueError(f"Available model's size: 'tiny', 'small', 'medium', 'large', but " f"'{pvt_size}' was given")
|
||||
|
||||
assert torch.allclose(logits[0, :3], expected_slice_logits, atol=1e-4)
|
||||
|
||||
Path(pytorch_dump_folder_path).mkdir(exist_ok=True)
|
||||
print(f"Saving model pytorch_model.bin to {pytorch_dump_folder_path}")
|
||||
model.save_pretrained(pytorch_dump_folder_path)
|
||||
print(f"Saving image processor to {pytorch_dump_folder_path}")
|
||||
image_processor.save_pretrained(pytorch_dump_folder_path)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
parser = argparse.ArgumentParser()
|
||||
# Required parameters
|
||||
parser.add_argument(
|
||||
"--pvt_size",
|
||||
default="tiny",
|
||||
type=str,
|
||||
help="Size of the PVT pretrained model you'd like to convert.",
|
||||
)
|
||||
parser.add_argument(
|
||||
"--pvt_checkpoint",
|
||||
default="pvt_tiny.pth",
|
||||
type=str,
|
||||
help="Checkpoint of the PVT pretrained model you'd like to convert.",
|
||||
)
|
||||
parser.add_argument(
|
||||
"--pytorch_dump_folder_path", default=None, type=str, help="Path to the output PyTorch model directory."
|
||||
)
|
||||
|
||||
args = parser.parse_args()
|
||||
convert_pvt_checkpoint(args.pvt_size, args.pvt_checkpoint, args.pytorch_dump_folder_path)
|
||||
273
src/transformers/models/pvt/image_processing_pvt.py
Normal file
273
src/transformers/models/pvt/image_processing_pvt.py
Normal file
@ -0,0 +1,273 @@
|
||||
# coding=utf-8
|
||||
# Copyright 2023 The HuggingFace Inc. team. All rights reserved.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
"""Image processor class for Pvt."""
|
||||
|
||||
from typing import Dict, List, Optional, Union
|
||||
|
||||
import numpy as np
|
||||
|
||||
from ...image_processing_utils import BaseImageProcessor, BatchFeature, get_size_dict
|
||||
from ...image_transforms import normalize, rescale, resize, to_channel_dimension_format
|
||||
from ...image_utils import (
|
||||
IMAGENET_DEFAULT_MEAN,
|
||||
IMAGENET_DEFAULT_STD,
|
||||
ChannelDimension,
|
||||
ImageInput,
|
||||
PILImageResampling,
|
||||
make_list_of_images,
|
||||
to_numpy_array,
|
||||
valid_images,
|
||||
)
|
||||
from ...utils import TensorType, logging
|
||||
|
||||
|
||||
logger = logging.get_logger(__name__)
|
||||
|
||||
|
||||
class PvtImageProcessor(BaseImageProcessor):
|
||||
r"""
|
||||
Constructs a PVT image processor.
|
||||
|
||||
Args:
|
||||
do_resize (`bool`, *optional*, defaults to `True`):
|
||||
Whether to resize the image's (height, width) dimensions to the specified `(size["height"],
|
||||
size["width"])`. Can be overridden by the `do_resize` parameter in the `preprocess` method.
|
||||
size (`dict`, *optional*, defaults to `{"height": 224, "width": 224}`):
|
||||
Size of the output image after resizing. Can be overridden by the `size` parameter in the `preprocess`
|
||||
method.
|
||||
resample (`PILImageResampling`, *optional*, defaults to `PILImageResampling.BILINEAR`):
|
||||
Resampling filter to use if resizing the image. Can be overridden by the `resample` parameter in the
|
||||
`preprocess` method.
|
||||
do_rescale (`bool`, *optional*, defaults to `True`):
|
||||
Whether to rescale the image by the specified scale `rescale_factor`. Can be overridden by the `do_rescale`
|
||||
parameter in the `preprocess` method.
|
||||
rescale_factor (`int` or `float`, *optional*, defaults to `1/255`):
|
||||
Scale factor to use if rescaling the image. Can be overridden by the `rescale_factor` parameter in the
|
||||
`preprocess` method.
|
||||
do_normalize (`bool`, *optional*, defaults to `True):
|
||||
Whether to normalize the image. Can be overridden by the `do_normalize` parameter in the `preprocess`
|
||||
method.
|
||||
image_mean (`float` or `List[float]`, *optional*, defaults to `IMAGENET_DEFAULT_MEAN`):
|
||||
Mean to use if normalizing the image. This is a float or list of floats the length of the number of
|
||||
channels in the image. Can be overridden by the `image_mean` parameter in the `preprocess` method.
|
||||
image_std (`float` or `List[float]`, *optional*, defaults to `IMAGENET_DEFAULT_STD`):
|
||||
Standard deviation to use if normalizing the image. This is a float or list of floats the length of the
|
||||
number of channels in the image. Can be overridden by the `image_std` parameter in the `preprocess` method.
|
||||
"""
|
||||
|
||||
model_input_names = ["pixel_values"]
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
do_resize: bool = True,
|
||||
size: Optional[Dict[str, int]] = None,
|
||||
resample: PILImageResampling = PILImageResampling.BILINEAR,
|
||||
do_rescale: bool = True,
|
||||
rescale_factor: Union[int, float] = 1 / 255,
|
||||
do_normalize: bool = True,
|
||||
image_mean: Optional[Union[float, List[float]]] = None,
|
||||
image_std: Optional[Union[float, List[float]]] = None,
|
||||
**kwargs,
|
||||
) -> None:
|
||||
super().__init__(**kwargs)
|
||||
size = size if size is not None else {"height": 224, "width": 224}
|
||||
size = get_size_dict(size)
|
||||
self.do_resize = do_resize
|
||||
self.do_rescale = do_rescale
|
||||
self.do_normalize = do_normalize
|
||||
self.size = size
|
||||
self.resample = resample
|
||||
self.rescale_factor = rescale_factor
|
||||
self.image_mean = image_mean if image_mean is not None else IMAGENET_DEFAULT_MEAN
|
||||
self.image_std = image_std if image_std is not None else IMAGENET_DEFAULT_STD
|
||||
|
||||
def resize(
|
||||
self,
|
||||
image: np.ndarray,
|
||||
size: Dict[str, int],
|
||||
resample: PILImageResampling = PILImageResampling.BILINEAR,
|
||||
data_format: Optional[Union[str, ChannelDimension]] = None,
|
||||
**kwargs,
|
||||
) -> np.ndarray:
|
||||
"""
|
||||
Resize an image to `(size["height"], size["width"])`.
|
||||
|
||||
Args:
|
||||
image (`np.ndarray`):
|
||||
Image to resize.
|
||||
size (`Dict[str, int]`):
|
||||
Dictionary in the format `{"height": int, "width": int}` specifying the size of the output image.
|
||||
resample:
|
||||
`PILImageResampling` filter to use when resizing the image e.g. `PILImageResampling.BILINEAR`.
|
||||
data_format (`ChannelDimension` or `str`, *optional*):
|
||||
The channel dimension format for the output image. If unset, the channel dimension format of the input
|
||||
image is used. Can be one of:
|
||||
- `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
|
||||
- `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
|
||||
|
||||
Returns:
|
||||
`np.ndarray`: The resized image.
|
||||
"""
|
||||
size = get_size_dict(size)
|
||||
if "height" not in size or "width" not in size:
|
||||
raise ValueError(f"The `size` dictionary must contain the keys `height` and `width`. Got {size.keys()}")
|
||||
return resize(
|
||||
image, size=(size["height"], size["width"]), resample=resample, data_format=data_format, **kwargs
|
||||
)
|
||||
|
||||
def rescale(
|
||||
self, image: np.ndarray, scale: float, data_format: Optional[Union[str, ChannelDimension]] = None, **kwargs
|
||||
) -> np.ndarray:
|
||||
"""
|
||||
Rescale an image by a scale factor. image = image * scale.
|
||||
|
||||
Args:
|
||||
image (`np.ndarray`):
|
||||
Image to rescale.
|
||||
scale (`float`):
|
||||
The scaling factor to rescale pixel values by.
|
||||
data_format (`str` or `ChannelDimension`, *optional*):
|
||||
The channel dimension format for the output image. If unset, the channel dimension format of the input
|
||||
image is used. Can be one of:
|
||||
- `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
|
||||
- `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
|
||||
|
||||
Returns:
|
||||
`np.ndarray`: The rescaled image.
|
||||
"""
|
||||
return rescale(image, scale=scale, data_format=data_format, **kwargs)
|
||||
|
||||
def normalize(
|
||||
self,
|
||||
image: np.ndarray,
|
||||
mean: Union[float, List[float]],
|
||||
std: Union[float, List[float]],
|
||||
data_format: Optional[Union[str, ChannelDimension]] = None,
|
||||
**kwargs,
|
||||
) -> np.ndarray:
|
||||
"""
|
||||
Normalize an image. image = (image - image_mean) / image_std.
|
||||
|
||||
Args:
|
||||
image (`np.ndarray`):
|
||||
Image to normalize.
|
||||
mean (`float` or `List[float]`):
|
||||
Image mean to use for normalization.
|
||||
std (`float` or `List[float]`):
|
||||
Image standard deviation to use for normalization.
|
||||
data_format (`str` or `ChannelDimension`, *optional*):
|
||||
The channel dimension format for the output image. If unset, the channel dimension format of the input
|
||||
image is used. Can be one of:
|
||||
- `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
|
||||
- `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
|
||||
|
||||
Returns:
|
||||
`np.ndarray`: The normalized image.
|
||||
"""
|
||||
return normalize(image, mean=mean, std=std, data_format=data_format, **kwargs)
|
||||
|
||||
def preprocess(
|
||||
self,
|
||||
images: ImageInput,
|
||||
do_resize: Optional[bool] = None,
|
||||
size: Dict[str, int] = None,
|
||||
resample: PILImageResampling = None,
|
||||
do_rescale: Optional[bool] = None,
|
||||
rescale_factor: Optional[float] = None,
|
||||
do_normalize: Optional[bool] = None,
|
||||
image_mean: Optional[Union[float, List[float]]] = None,
|
||||
image_std: Optional[Union[float, List[float]]] = None,
|
||||
return_tensors: Optional[Union[str, TensorType]] = None,
|
||||
data_format: Union[str, ChannelDimension] = ChannelDimension.FIRST,
|
||||
**kwargs,
|
||||
):
|
||||
"""
|
||||
Preprocess an image or batch of images.
|
||||
|
||||
Args:
|
||||
images (`ImageInput`):
|
||||
Image to preprocess.
|
||||
do_resize (`bool`, *optional*, defaults to `self.do_resize`):
|
||||
Whether to resize the image.
|
||||
size (`Dict[str, int]`, *optional*, defaults to `self.size`):
|
||||
Dictionary in the format `{"height": h, "width": w}` specifying the size of the output image after
|
||||
resizing.
|
||||
resample (`PILImageResampling` filter, *optional*, defaults to `self.resample`):
|
||||
`PILImageResampling` filter to use if resizing the image e.g. `PILImageResampling.BILINEAR`. Only has
|
||||
an effect if `do_resize` is set to `True`.
|
||||
do_rescale (`bool`, *optional*, defaults to `self.do_rescale`):
|
||||
Whether to rescale the image values between [0 - 1].
|
||||
rescale_factor (`float`, *optional*, defaults to `self.rescale_factor`):
|
||||
Rescale factor to rescale the image by if `do_rescale` is set to `True`.
|
||||
do_normalize (`bool`, *optional*, defaults to `self.do_normalize`):
|
||||
Whether to normalize the image.
|
||||
image_mean (`float` or `List[float]`, *optional*, defaults to `self.image_mean`):
|
||||
Image mean to use if `do_normalize` is set to `True`.
|
||||
image_std (`float` or `List[float]`, *optional*, defaults to `self.image_std`):
|
||||
Image standard deviation to use if `do_normalize` is set to `True`.
|
||||
return_tensors (`str` or `TensorType`, *optional*):
|
||||
The type of tensors to return. Can be one of:
|
||||
- Unset: Return a list of `np.ndarray`.
|
||||
- `TensorType.TENSORFLOW` or `'tf'`: Return a batch of type `tf.Tensor`.
|
||||
- `TensorType.PYTORCH` or `'pt'`: Return a batch of type `torch.Tensor`.
|
||||
- `TensorType.NUMPY` or `'np'`: Return a batch of type `np.ndarray`.
|
||||
- `TensorType.JAX` or `'jax'`: Return a batch of type `jax.numpy.ndarray`.
|
||||
data_format (`ChannelDimension` or `str`, *optional*, defaults to `ChannelDimension.FIRST`):
|
||||
The channel dimension format for the output image. Can be one of:
|
||||
- `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format.
|
||||
- `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format.
|
||||
- Unset: Use the channel dimension format of the input image.
|
||||
"""
|
||||
do_resize = do_resize if do_resize is not None else self.do_resize
|
||||
do_rescale = do_rescale if do_rescale is not None else self.do_rescale
|
||||
do_normalize = do_normalize if do_normalize is not None else self.do_normalize
|
||||
resample = resample if resample is not None else self.resample
|
||||
rescale_factor = rescale_factor if rescale_factor is not None else self.rescale_factor
|
||||
image_mean = image_mean if image_mean is not None else self.image_mean
|
||||
image_std = image_std if image_std is not None else self.image_std
|
||||
|
||||
size = size if size is not None else self.size
|
||||
size_dict = get_size_dict(size)
|
||||
|
||||
images = make_list_of_images(images)
|
||||
|
||||
if not valid_images(images):
|
||||
raise ValueError(
|
||||
"Invalid image type. Must be of type PIL.Image.Image, numpy.ndarray, "
|
||||
"torch.Tensor, tf.Tensor or jax.ndarray."
|
||||
)
|
||||
|
||||
if do_resize and size is None:
|
||||
raise ValueError("Size must be specified if do_resize is True.")
|
||||
|
||||
if do_rescale and rescale_factor is None:
|
||||
raise ValueError("Rescale factor must be specified if do_rescale is True.")
|
||||
|
||||
# All transformations expect numpy arrays.
|
||||
images = [to_numpy_array(image) for image in images]
|
||||
|
||||
if do_resize:
|
||||
images = [self.resize(image=image, size=size_dict, resample=resample) for image in images]
|
||||
|
||||
if do_rescale:
|
||||
images = [self.rescale(image=image, scale=rescale_factor) for image in images]
|
||||
|
||||
if do_normalize:
|
||||
images = [self.normalize(image=image, mean=image_mean, std=image_std) for image in images]
|
||||
|
||||
images = [to_channel_dimension_format(image, data_format) for image in images]
|
||||
|
||||
data = {"pixel_values": images}
|
||||
return BatchFeature(data=data, tensor_type=return_tensors)
|
||||
674
src/transformers/models/pvt/modeling_pvt.py
Executable file
674
src/transformers/models/pvt/modeling_pvt.py
Executable file
@ -0,0 +1,674 @@
|
||||
# coding=utf-8
|
||||
# Copyright 2023 Authors: Wenhai Wang, Enze Xie, Xiang Li, Deng-Ping Fan,
|
||||
# Kaitao Song, Ding Liang, Tong Lu, Ping Luo, Ling Shao and The HuggingFace Inc. team.
|
||||
# All rights reserved.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
""" PyTorch PVT model."""
|
||||
|
||||
import collections
|
||||
import math
|
||||
from typing import Iterable, Optional, Tuple, Union
|
||||
|
||||
import torch
|
||||
import torch.nn.functional as F
|
||||
import torch.utils.checkpoint
|
||||
from torch import nn
|
||||
from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss
|
||||
|
||||
from ...activations import ACT2FN
|
||||
from ...modeling_outputs import BaseModelOutput, ImageClassifierOutput
|
||||
from ...modeling_utils import PreTrainedModel
|
||||
from ...pytorch_utils import find_pruneable_heads_and_indices, prune_linear_layer
|
||||
from ...utils import (
|
||||
add_code_sample_docstrings,
|
||||
add_start_docstrings,
|
||||
add_start_docstrings_to_model_forward,
|
||||
logging,
|
||||
)
|
||||
from .configuration_pvt import PvtConfig
|
||||
|
||||
|
||||
logger = logging.get_logger(__name__)
|
||||
|
||||
_CONFIG_FOR_DOC = "PvtConfig"
|
||||
|
||||
_CHECKPOINT_FOR_DOC = "Zetatech/pvt-tiny-224"
|
||||
_EXPECTED_OUTPUT_SHAPE = [1, 50, 512]
|
||||
|
||||
_IMAGE_CLASS_CHECKPOINT = "Zetatech/pvt-tiny-224"
|
||||
_IMAGE_CLASS_EXPECTED_OUTPUT = "tabby, tabby cat"
|
||||
|
||||
PVT_PRETRAINED_MODEL_ARCHIVE_LIST = [
|
||||
"Zetatech/pvt-tiny-224"
|
||||
# See all PVT models at https://huggingface.co/models?filter=pvt
|
||||
]
|
||||
|
||||
|
||||
# Copied from transformers.models.convnext.modeling_convnext.drop_path
|
||||
def drop_path(input, drop_prob: float = 0.0, training: bool = False, scale_by_keep=True):
|
||||
"""
|
||||
Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks).
|
||||
|
||||
Comment by Ross Wightman: This is the same as the DropConnect impl I created for EfficientNet, etc networks,
|
||||
however, the original name is misleading as 'Drop Connect' is a different form of dropout in a separate paper...
|
||||
See discussion: https://github.com/tensorflow/tpu/issues/494#issuecomment-532968956 ... I've opted for changing the
|
||||
layer and argument names to 'drop path' rather than mix DropConnect as a layer name and use 'survival rate' as the
|
||||
argument.
|
||||
"""
|
||||
if drop_prob == 0.0 or not training:
|
||||
return input
|
||||
keep_prob = 1 - drop_prob
|
||||
shape = (input.shape[0],) + (1,) * (input.ndim - 1) # work with diff dim tensors, not just 2D ConvNets
|
||||
random_tensor = keep_prob + torch.rand(shape, dtype=input.dtype, device=input.device)
|
||||
random_tensor.floor_() # binarize
|
||||
output = input.div(keep_prob) * random_tensor
|
||||
return output
|
||||
|
||||
|
||||
# Copied from transformers.models.convnext.modeling_convnext.ConvNextDropPath with ConvNext->Pvt
|
||||
class PvtDropPath(nn.Module):
|
||||
"""Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks)."""
|
||||
|
||||
def __init__(self, drop_prob: Optional[float] = None) -> None:
|
||||
super().__init__()
|
||||
self.drop_prob = drop_prob
|
||||
|
||||
def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
|
||||
return drop_path(hidden_states, self.drop_prob, self.training)
|
||||
|
||||
def extra_repr(self) -> str:
|
||||
return "p={}".format(self.drop_prob)
|
||||
|
||||
|
||||
class PvtPatchEmbeddings(nn.Module):
|
||||
"""
|
||||
This class turns `pixel_values` of shape `(batch_size, num_channels, height, width)` into the initial
|
||||
`hidden_states` (patch embeddings) of shape `(batch_size, seq_length, hidden_size)` to be consumed by a
|
||||
Transformer.
|
||||
"""
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
config: PvtConfig,
|
||||
image_size: Union[int, Iterable[int]],
|
||||
patch_size: Union[int, Iterable[int]],
|
||||
stride: int,
|
||||
num_channels: int,
|
||||
hidden_size: int,
|
||||
cls_token: bool = False,
|
||||
):
|
||||
super().__init__()
|
||||
self.config = config
|
||||
image_size = image_size if isinstance(image_size, collections.abc.Iterable) else (image_size, image_size)
|
||||
patch_size = patch_size if isinstance(patch_size, collections.abc.Iterable) else (patch_size, patch_size)
|
||||
num_patches = (image_size[1] // patch_size[1]) * (image_size[0] // patch_size[0])
|
||||
self.image_size = image_size
|
||||
self.patch_size = patch_size
|
||||
self.num_channels = num_channels
|
||||
self.num_patches = num_patches
|
||||
|
||||
self.position_embeddings = nn.Parameter(
|
||||
torch.randn(1, num_patches + 1 if cls_token else num_patches, hidden_size)
|
||||
)
|
||||
self.cls_token = nn.Parameter(torch.zeros(1, 1, hidden_size)) if cls_token else None
|
||||
self.projection = nn.Conv2d(num_channels, hidden_size, kernel_size=stride, stride=patch_size)
|
||||
self.layer_norm = nn.LayerNorm(hidden_size, eps=config.layer_norm_eps)
|
||||
self.dropout = nn.Dropout(p=config.hidden_dropout_prob)
|
||||
|
||||
def interpolate_pos_encoding(self, embeddings: torch.Tensor, height: int, width: int) -> torch.Tensor:
|
||||
num_patches = height * width
|
||||
if num_patches == self.config.image_size * self.config.image_size:
|
||||
return self.position_embeddings
|
||||
embeddings = embeddings.reshape(1, height, width, -1).permute(0, 3, 1, 2)
|
||||
interpolated_embeddings = F.interpolate(embeddings, size=(height, width), mode="bilinear")
|
||||
interpolated_embeddings = interpolated_embeddings.reshape(1, -1, height * width).permute(0, 2, 1)
|
||||
return interpolated_embeddings
|
||||
|
||||
def forward(self, pixel_values: torch.Tensor) -> Tuple[torch.Tensor, int, int]:
|
||||
batch_size, num_channels, height, width = pixel_values.shape
|
||||
if num_channels != self.num_channels:
|
||||
raise ValueError(
|
||||
"Make sure that the channel dimension of the pixel values match with the one set in the configuration."
|
||||
)
|
||||
patch_embed = self.projection(pixel_values)
|
||||
*_, height, width = patch_embed.shape
|
||||
patch_embed = patch_embed.flatten(2).transpose(1, 2)
|
||||
embeddings = self.layer_norm(patch_embed)
|
||||
if self.cls_token is not None:
|
||||
cls_token = self.cls_token.expand(batch_size, -1, -1)
|
||||
embeddings = torch.cat((cls_token, embeddings), dim=1)
|
||||
position_embeddings = self.interpolate_pos_encoding(self.position_embeddings[:, 1:], height, width)
|
||||
position_embeddings = torch.cat((self.position_embeddings[:, :1], position_embeddings), dim=1)
|
||||
else:
|
||||
position_embeddings = self.interpolate_pos_encoding(self.position_embeddings, height, width)
|
||||
embeddings = self.dropout(embeddings + position_embeddings)
|
||||
|
||||
return embeddings, height, width
|
||||
|
||||
|
||||
class PvtSelfOutput(nn.Module):
|
||||
def __init__(self, config: PvtConfig, hidden_size: int):
|
||||
super().__init__()
|
||||
self.dense = nn.Linear(hidden_size, hidden_size)
|
||||
self.dropout = nn.Dropout(config.hidden_dropout_prob)
|
||||
|
||||
def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
|
||||
hidden_states = self.dense(hidden_states)
|
||||
hidden_states = self.dropout(hidden_states)
|
||||
return hidden_states
|
||||
|
||||
|
||||
class PvtEfficientSelfAttention(nn.Module):
|
||||
"""Efficient self-attention mechanism with reduction of the sequence [PvT paper](https://arxiv.org/abs/2102.12122)."""
|
||||
|
||||
def __init__(
|
||||
self, config: PvtConfig, hidden_size: int, num_attention_heads: int, sequences_reduction_ratio: float
|
||||
):
|
||||
super().__init__()
|
||||
self.hidden_size = hidden_size
|
||||
self.num_attention_heads = num_attention_heads
|
||||
|
||||
if self.hidden_size % self.num_attention_heads != 0:
|
||||
raise ValueError(
|
||||
f"The hidden size ({self.hidden_size}) is not a multiple of the number of attention "
|
||||
f"heads ({self.num_attention_heads})"
|
||||
)
|
||||
|
||||
self.attention_head_size = int(self.hidden_size / self.num_attention_heads)
|
||||
self.all_head_size = self.num_attention_heads * self.attention_head_size
|
||||
|
||||
self.query = nn.Linear(self.hidden_size, self.all_head_size, bias=config.qkv_bias)
|
||||
self.key = nn.Linear(self.hidden_size, self.all_head_size, bias=config.qkv_bias)
|
||||
self.value = nn.Linear(self.hidden_size, self.all_head_size, bias=config.qkv_bias)
|
||||
|
||||
self.dropout = nn.Dropout(config.attention_probs_dropout_prob)
|
||||
|
||||
self.sequences_reduction_ratio = sequences_reduction_ratio
|
||||
if sequences_reduction_ratio > 1:
|
||||
self.sequence_reduction = nn.Conv2d(
|
||||
hidden_size, hidden_size, kernel_size=sequences_reduction_ratio, stride=sequences_reduction_ratio
|
||||
)
|
||||
self.layer_norm = nn.LayerNorm(hidden_size, eps=config.layer_norm_eps)
|
||||
|
||||
def transpose_for_scores(self, hidden_states: int) -> torch.Tensor:
|
||||
new_shape = hidden_states.size()[:-1] + (self.num_attention_heads, self.attention_head_size)
|
||||
hidden_states = hidden_states.view(new_shape)
|
||||
return hidden_states.permute(0, 2, 1, 3)
|
||||
|
||||
def forward(
|
||||
self,
|
||||
hidden_states: torch.Tensor,
|
||||
height: int,
|
||||
width: int,
|
||||
output_attentions: bool = False,
|
||||
) -> Tuple[torch.Tensor]:
|
||||
query_layer = self.transpose_for_scores(self.query(hidden_states))
|
||||
|
||||
if self.sequences_reduction_ratio > 1:
|
||||
batch_size, seq_len, num_channels = hidden_states.shape
|
||||
# Reshape to (batch_size, num_channels, height, width)
|
||||
hidden_states = hidden_states.permute(0, 2, 1).reshape(batch_size, num_channels, height, width)
|
||||
# Apply sequence reduction
|
||||
hidden_states = self.sequence_reduction(hidden_states)
|
||||
# Reshape back to (batch_size, seq_len, num_channels)
|
||||
hidden_states = hidden_states.reshape(batch_size, num_channels, -1).permute(0, 2, 1)
|
||||
hidden_states = self.layer_norm(hidden_states)
|
||||
|
||||
key_layer = self.transpose_for_scores(self.key(hidden_states))
|
||||
value_layer = self.transpose_for_scores(self.value(hidden_states))
|
||||
|
||||
# Take the dot product between "query" and "key" to get the raw attention scores.
|
||||
attention_scores = torch.matmul(query_layer, key_layer.transpose(-1, -2))
|
||||
|
||||
attention_scores = attention_scores / math.sqrt(self.attention_head_size)
|
||||
|
||||
# Normalize the attention scores to probabilities.
|
||||
attention_probs = nn.functional.softmax(attention_scores, dim=-1)
|
||||
|
||||
# This is actually dropping out entire tokens to attend to, which might
|
||||
# seem a bit unusual, but is taken from the original Transformer paper.
|
||||
attention_probs = self.dropout(attention_probs)
|
||||
|
||||
context_layer = torch.matmul(attention_probs, value_layer)
|
||||
|
||||
context_layer = context_layer.permute(0, 2, 1, 3).contiguous()
|
||||
new_context_layer_shape = context_layer.size()[:-2] + (self.all_head_size,)
|
||||
context_layer = context_layer.view(new_context_layer_shape)
|
||||
|
||||
outputs = (context_layer, attention_probs) if output_attentions else (context_layer,)
|
||||
|
||||
return outputs
|
||||
|
||||
|
||||
class PvtAttention(nn.Module):
|
||||
def __init__(
|
||||
self, config: PvtConfig, hidden_size: int, num_attention_heads: int, sequences_reduction_ratio: float
|
||||
):
|
||||
super().__init__()
|
||||
self.self = PvtEfficientSelfAttention(
|
||||
config,
|
||||
hidden_size=hidden_size,
|
||||
num_attention_heads=num_attention_heads,
|
||||
sequences_reduction_ratio=sequences_reduction_ratio,
|
||||
)
|
||||
self.output = PvtSelfOutput(config, hidden_size=hidden_size)
|
||||
self.pruned_heads = set()
|
||||
|
||||
def prune_heads(self, heads):
|
||||
if len(heads) == 0:
|
||||
return
|
||||
heads, index = find_pruneable_heads_and_indices(
|
||||
heads, self.self.num_attention_heads, self.self.attention_head_size, self.pruned_heads
|
||||
)
|
||||
|
||||
# Prune linear layers
|
||||
self.self.query = prune_linear_layer(self.self.query, index)
|
||||
self.self.key = prune_linear_layer(self.self.key, index)
|
||||
self.self.value = prune_linear_layer(self.self.value, index)
|
||||
self.output.dense = prune_linear_layer(self.output.dense, index, dim=1)
|
||||
|
||||
# Update hyper params and store pruned heads
|
||||
self.self.num_attention_heads = self.self.num_attention_heads - len(heads)
|
||||
self.self.all_head_size = self.self.attention_head_size * self.self.num_attention_heads
|
||||
self.pruned_heads = self.pruned_heads.union(heads)
|
||||
|
||||
def forward(
|
||||
self, hidden_states: torch.Tensor, height: int, width: int, output_attentions: bool = False
|
||||
) -> Tuple[torch.Tensor]:
|
||||
self_outputs = self.self(hidden_states, height, width, output_attentions)
|
||||
|
||||
attention_output = self.output(self_outputs[0])
|
||||
outputs = (attention_output,) + self_outputs[1:] # add attentions if we output them
|
||||
return outputs
|
||||
|
||||
|
||||
class PvtFFN(nn.Module):
|
||||
def __init__(
|
||||
self,
|
||||
config: PvtConfig,
|
||||
in_features: int,
|
||||
hidden_features: Optional[int] = None,
|
||||
out_features: Optional[int] = None,
|
||||
):
|
||||
super().__init__()
|
||||
out_features = out_features if out_features is not None else in_features
|
||||
self.dense1 = nn.Linear(in_features, hidden_features)
|
||||
if isinstance(config.hidden_act, str):
|
||||
self.intermediate_act_fn = ACT2FN[config.hidden_act]
|
||||
else:
|
||||
self.intermediate_act_fn = config.hidden_act
|
||||
self.dense2 = nn.Linear(hidden_features, out_features)
|
||||
self.dropout = nn.Dropout(config.hidden_dropout_prob)
|
||||
|
||||
def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
|
||||
hidden_states = self.dense1(hidden_states)
|
||||
hidden_states = self.intermediate_act_fn(hidden_states)
|
||||
hidden_states = self.dropout(hidden_states)
|
||||
hidden_states = self.dense2(hidden_states)
|
||||
hidden_states = self.dropout(hidden_states)
|
||||
return hidden_states
|
||||
|
||||
|
||||
class PvtLayer(nn.Module):
|
||||
def __init__(
|
||||
self,
|
||||
config: PvtConfig,
|
||||
hidden_size: int,
|
||||
num_attention_heads: int,
|
||||
drop_path: float,
|
||||
sequences_reduction_ratio: float,
|
||||
mlp_ratio: float,
|
||||
):
|
||||
super().__init__()
|
||||
self.layer_norm_1 = nn.LayerNorm(hidden_size, eps=config.layer_norm_eps)
|
||||
self.attention = PvtAttention(
|
||||
config=config,
|
||||
hidden_size=hidden_size,
|
||||
num_attention_heads=num_attention_heads,
|
||||
sequences_reduction_ratio=sequences_reduction_ratio,
|
||||
)
|
||||
self.drop_path = PvtDropPath(drop_path) if drop_path > 0.0 else nn.Identity()
|
||||
self.layer_norm_2 = nn.LayerNorm(hidden_size, eps=config.layer_norm_eps)
|
||||
mlp_hidden_size = int(hidden_size * mlp_ratio)
|
||||
self.mlp = PvtFFN(config=config, in_features=hidden_size, hidden_features=mlp_hidden_size)
|
||||
|
||||
def forward(self, hidden_states: torch.Tensor, height: int, width: int, output_attentions: bool = False):
|
||||
self_attention_outputs = self.attention(
|
||||
hidden_states=self.layer_norm_1(hidden_states),
|
||||
height=height,
|
||||
width=width,
|
||||
output_attentions=output_attentions,
|
||||
)
|
||||
attention_output = self_attention_outputs[0]
|
||||
outputs = self_attention_outputs[1:]
|
||||
|
||||
attention_output = self.drop_path(attention_output)
|
||||
hidden_states = attention_output + hidden_states
|
||||
|
||||
mlp_output = self.mlp(self.layer_norm_2(hidden_states))
|
||||
|
||||
mlp_output = self.drop_path(mlp_output)
|
||||
layer_output = hidden_states + mlp_output
|
||||
|
||||
outputs = (layer_output,) + outputs
|
||||
|
||||
return outputs
|
||||
|
||||
|
||||
class PvtEncoder(nn.Module):
|
||||
def __init__(self, config: PvtConfig):
|
||||
super().__init__()
|
||||
self.config = config
|
||||
|
||||
# stochastic depth decay rule
|
||||
drop_path_decays = torch.linspace(0, config.drop_path_rate, sum(config.depths)).tolist()
|
||||
|
||||
# patch embeddings
|
||||
embeddings = []
|
||||
|
||||
for i in range(config.num_encoder_blocks):
|
||||
embeddings.append(
|
||||
PvtPatchEmbeddings(
|
||||
config=config,
|
||||
image_size=config.image_size if i == 0 else self.config.image_size // (2 ** (i + 1)),
|
||||
patch_size=config.patch_sizes[i],
|
||||
stride=config.strides[i],
|
||||
num_channels=config.num_channels if i == 0 else config.hidden_sizes[i - 1],
|
||||
hidden_size=config.hidden_sizes[i],
|
||||
cls_token=i == config.num_encoder_blocks - 1,
|
||||
)
|
||||
)
|
||||
self.patch_embeddings = nn.ModuleList(embeddings)
|
||||
|
||||
# Transformer blocks
|
||||
blocks = []
|
||||
cur = 0
|
||||
for i in range(config.num_encoder_blocks):
|
||||
# each block consists of layers
|
||||
layers = []
|
||||
if i != 0:
|
||||
cur += config.depths[i - 1]
|
||||
for j in range(config.depths[i]):
|
||||
layers.append(
|
||||
PvtLayer(
|
||||
config=config,
|
||||
hidden_size=config.hidden_sizes[i],
|
||||
num_attention_heads=config.num_attention_heads[i],
|
||||
drop_path=drop_path_decays[cur + j],
|
||||
sequences_reduction_ratio=config.sequence_reduction_ratios[i],
|
||||
mlp_ratio=config.mlp_ratios[i],
|
||||
)
|
||||
)
|
||||
blocks.append(nn.ModuleList(layers))
|
||||
|
||||
self.block = nn.ModuleList(blocks)
|
||||
|
||||
# Layer norms
|
||||
self.layer_norm = nn.LayerNorm(config.hidden_sizes[-1], eps=config.layer_norm_eps)
|
||||
|
||||
def forward(
|
||||
self,
|
||||
pixel_values: torch.FloatTensor,
|
||||
output_attentions: Optional[bool] = False,
|
||||
output_hidden_states: Optional[bool] = False,
|
||||
return_dict: Optional[bool] = True,
|
||||
) -> Union[Tuple, BaseModelOutput]:
|
||||
all_hidden_states = () if output_hidden_states else None
|
||||
all_self_attentions = () if output_attentions else None
|
||||
|
||||
batch_size = pixel_values.shape[0]
|
||||
num_blocks = len(self.block)
|
||||
hidden_states = pixel_values
|
||||
for idx, (embedding_layer, block_layer) in enumerate(zip(self.patch_embeddings, self.block)):
|
||||
# first, obtain patch embeddings
|
||||
hidden_states, height, width = embedding_layer(hidden_states)
|
||||
# second, send embeddings through blocks
|
||||
for block in block_layer:
|
||||
layer_outputs = block(hidden_states, height, width, output_attentions)
|
||||
hidden_states = layer_outputs[0]
|
||||
if output_attentions:
|
||||
all_self_attentions = all_self_attentions + (layer_outputs[1],)
|
||||
if output_hidden_states:
|
||||
all_hidden_states = all_hidden_states + (hidden_states,)
|
||||
if idx != num_blocks - 1:
|
||||
hidden_states = hidden_states.reshape(batch_size, height, width, -1).permute(0, 3, 1, 2).contiguous()
|
||||
hidden_states = self.layer_norm(hidden_states)
|
||||
if output_hidden_states:
|
||||
all_hidden_states = all_hidden_states + (hidden_states,)
|
||||
if not return_dict:
|
||||
return tuple(v for v in [hidden_states, all_hidden_states, all_self_attentions] if v is not None)
|
||||
return BaseModelOutput(
|
||||
last_hidden_state=hidden_states,
|
||||
hidden_states=all_hidden_states,
|
||||
attentions=all_self_attentions,
|
||||
)
|
||||
|
||||
|
||||
class PvtPreTrainedModel(PreTrainedModel):
|
||||
"""
|
||||
An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained
|
||||
models.
|
||||
"""
|
||||
|
||||
config_class = PvtConfig
|
||||
base_model_prefix = "pvt"
|
||||
main_input_name = "pixel_values"
|
||||
|
||||
def _init_weights(self, module: Union[nn.Linear, nn.Conv2d, nn.LayerNorm]) -> None:
|
||||
"""Initialize the weights"""
|
||||
if isinstance(module, nn.Linear):
|
||||
# Upcast the input in `fp32` and cast it back to desired `dtype` to avoid
|
||||
# `trunc_normal_cpu` not implemented in `half` issues
|
||||
module.weight.data = nn.init.trunc_normal_(module.weight.data, mean=0.0, std=self.config.initializer_range)
|
||||
if module.bias is not None:
|
||||
module.bias.data.zero_()
|
||||
elif isinstance(module, nn.LayerNorm):
|
||||
module.bias.data.zero_()
|
||||
module.weight.data.fill_(1.0)
|
||||
elif isinstance(module, PvtPatchEmbeddings):
|
||||
module.position_embeddings.data = nn.init.trunc_normal_(
|
||||
module.position_embeddings.data,
|
||||
mean=0.0,
|
||||
std=self.config.initializer_range,
|
||||
)
|
||||
if module.cls_token is not None:
|
||||
module.cls_token.data = nn.init.trunc_normal_(
|
||||
module.cls_token.data,
|
||||
mean=0.0,
|
||||
std=self.config.initializer_range,
|
||||
)
|
||||
|
||||
def _set_gradient_checkpointing(self, module: PvtEncoder, value: bool = False):
|
||||
if isinstance(module, PvtEncoder):
|
||||
module.gradient_checkpointing = value
|
||||
|
||||
|
||||
PVT_START_DOCSTRING = r"""
|
||||
This model is a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) sub-class. Use
|
||||
it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and
|
||||
behavior.
|
||||
|
||||
Parameters:
|
||||
config ([`~PvtConfig`]): Model configuration class with all the parameters of the model.
|
||||
Initializing with a config file does not load the weights associated with the model, only the
|
||||
configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
|
||||
"""
|
||||
|
||||
PVT_INPUTS_DOCSTRING = r"""
|
||||
Args:
|
||||
pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`):
|
||||
Pixel values. Pixel values can be obtained using [`AutoImageProcessor`]. See [`PvtImageProcessor.__call__`]
|
||||
for details.
|
||||
output_attentions (`bool`, *optional*):
|
||||
Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
|
||||
tensors for more detail.
|
||||
output_hidden_states (`bool`, *optional*):
|
||||
Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
|
||||
more detail.
|
||||
return_dict (`bool`, *optional*):
|
||||
Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
|
||||
"""
|
||||
|
||||
|
||||
@add_start_docstrings(
|
||||
"The bare Pvt encoder outputting raw hidden-states without any specific head on top.",
|
||||
PVT_START_DOCSTRING,
|
||||
)
|
||||
class PvtModel(PvtPreTrainedModel):
|
||||
def __init__(self, config: PvtConfig):
|
||||
super().__init__(config)
|
||||
self.config = config
|
||||
|
||||
# hierarchical Transformer encoder
|
||||
self.encoder = PvtEncoder(config)
|
||||
|
||||
# Initialize weights and apply final processing
|
||||
self.post_init()
|
||||
|
||||
def _prune_heads(self, heads_to_prune):
|
||||
"""
|
||||
Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer} See base
|
||||
class PreTrainedModel
|
||||
"""
|
||||
for layer, heads in heads_to_prune.items():
|
||||
self.encoder.layer[layer].attention.prune_heads(heads)
|
||||
|
||||
@add_start_docstrings_to_model_forward(PVT_INPUTS_DOCSTRING.format("(batch_size, channels, height, width)"))
|
||||
@add_code_sample_docstrings(
|
||||
checkpoint=_CHECKPOINT_FOR_DOC,
|
||||
output_type=BaseModelOutput,
|
||||
config_class=_CONFIG_FOR_DOC,
|
||||
modality="vision",
|
||||
expected_output=_EXPECTED_OUTPUT_SHAPE,
|
||||
)
|
||||
def forward(
|
||||
self,
|
||||
pixel_values: torch.FloatTensor,
|
||||
output_attentions: Optional[bool] = None,
|
||||
output_hidden_states: Optional[bool] = None,
|
||||
return_dict: Optional[bool] = None,
|
||||
) -> Union[Tuple, BaseModelOutput]:
|
||||
output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
|
||||
output_hidden_states = (
|
||||
output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
|
||||
)
|
||||
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
|
||||
|
||||
encoder_outputs = self.encoder(
|
||||
pixel_values=pixel_values,
|
||||
output_attentions=output_attentions,
|
||||
output_hidden_states=output_hidden_states,
|
||||
return_dict=return_dict,
|
||||
)
|
||||
sequence_output = encoder_outputs[0]
|
||||
|
||||
if not return_dict:
|
||||
return (sequence_output,) + encoder_outputs[1:]
|
||||
|
||||
return BaseModelOutput(
|
||||
last_hidden_state=sequence_output,
|
||||
hidden_states=encoder_outputs.hidden_states,
|
||||
attentions=encoder_outputs.attentions,
|
||||
)
|
||||
|
||||
|
||||
@add_start_docstrings(
|
||||
"""
|
||||
Pvt Model transformer with an image classification head on top (a linear layer on top of the final hidden state of
|
||||
the [CLS] token) e.g. for ImageNet.
|
||||
""",
|
||||
PVT_START_DOCSTRING,
|
||||
)
|
||||
class PvtForImageClassification(PvtPreTrainedModel):
|
||||
def __init__(self, config: PvtConfig) -> None:
|
||||
super().__init__(config)
|
||||
|
||||
self.num_labels = config.num_labels
|
||||
self.pvt = PvtModel(config)
|
||||
|
||||
# Classifier head
|
||||
self.classifier = (
|
||||
nn.Linear(config.hidden_sizes[-1], config.num_labels) if config.num_labels > 0 else nn.Identity()
|
||||
)
|
||||
|
||||
# Initialize weights and apply final processing
|
||||
self.post_init()
|
||||
|
||||
@add_start_docstrings_to_model_forward(PVT_INPUTS_DOCSTRING.format("(batch_size, channels, height, width)"))
|
||||
@add_code_sample_docstrings(
|
||||
checkpoint=_IMAGE_CLASS_CHECKPOINT,
|
||||
output_type=ImageClassifierOutput,
|
||||
config_class=_CONFIG_FOR_DOC,
|
||||
expected_output=_IMAGE_CLASS_EXPECTED_OUTPUT,
|
||||
)
|
||||
def forward(
|
||||
self,
|
||||
pixel_values: Optional[torch.Tensor],
|
||||
labels: Optional[torch.Tensor] = None,
|
||||
output_attentions: Optional[bool] = None,
|
||||
output_hidden_states: Optional[bool] = None,
|
||||
return_dict: Optional[bool] = None,
|
||||
) -> Union[tuple, ImageClassifierOutput]:
|
||||
r"""
|
||||
labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
|
||||
Labels for computing the image classification/regression loss. Indices should be in `[0, ...,
|
||||
config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
|
||||
`config.num_labels > 1` a classification loss is computed (Cross-Entropy).
|
||||
"""
|
||||
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
|
||||
|
||||
outputs = self.pvt(
|
||||
pixel_values=pixel_values,
|
||||
output_attentions=output_attentions,
|
||||
output_hidden_states=output_hidden_states,
|
||||
return_dict=return_dict,
|
||||
)
|
||||
|
||||
sequence_output = outputs[0]
|
||||
|
||||
logits = self.classifier(sequence_output[:, 0, :])
|
||||
|
||||
loss = None
|
||||
if labels is not None:
|
||||
if self.config.problem_type is None:
|
||||
if self.num_labels == 1:
|
||||
self.config.problem_type = "regression"
|
||||
elif self.num_labels > 1 and (labels.dtype == torch.long or labels.dtype == torch.int):
|
||||
self.config.problem_type = "single_label_classification"
|
||||
else:
|
||||
self.config.problem_type = "multi_label_classification"
|
||||
|
||||
if self.config.problem_type == "regression":
|
||||
loss_fct = MSELoss()
|
||||
if self.num_labels == 1:
|
||||
loss = loss_fct(logits.squeeze(), labels.squeeze())
|
||||
else:
|
||||
loss = loss_fct(logits, labels)
|
||||
elif self.config.problem_type == "single_label_classification":
|
||||
loss_fct = CrossEntropyLoss()
|
||||
loss = loss_fct(logits.view(-1, self.num_labels), labels.view(-1))
|
||||
elif self.config.problem_type == "multi_label_classification":
|
||||
loss_fct = BCEWithLogitsLoss()
|
||||
loss = loss_fct(logits, labels)
|
||||
|
||||
if not return_dict:
|
||||
output = (logits,) + outputs[1:]
|
||||
return ((loss,) + output) if loss is not None else output
|
||||
|
||||
return ImageClassifierOutput(
|
||||
loss=loss,
|
||||
logits=logits,
|
||||
hidden_states=outputs.hidden_states,
|
||||
attentions=outputs.attentions,
|
||||
)
|
||||
@ -5870,6 +5870,30 @@ class ProphetNetPreTrainedModel(metaclass=DummyObject):
|
||||
requires_backends(self, ["torch"])
|
||||
|
||||
|
||||
PVT_PRETRAINED_MODEL_ARCHIVE_LIST = None
|
||||
|
||||
|
||||
class PvtForImageClassification(metaclass=DummyObject):
|
||||
_backends = ["torch"]
|
||||
|
||||
def __init__(self, *args, **kwargs):
|
||||
requires_backends(self, ["torch"])
|
||||
|
||||
|
||||
class PvtModel(metaclass=DummyObject):
|
||||
_backends = ["torch"]
|
||||
|
||||
def __init__(self, *args, **kwargs):
|
||||
requires_backends(self, ["torch"])
|
||||
|
||||
|
||||
class PvtPreTrainedModel(metaclass=DummyObject):
|
||||
_backends = ["torch"]
|
||||
|
||||
def __init__(self, *args, **kwargs):
|
||||
requires_backends(self, ["torch"])
|
||||
|
||||
|
||||
QDQBERT_PRETRAINED_MODEL_ARCHIVE_LIST = None
|
||||
|
||||
|
||||
|
||||
@ -408,6 +408,13 @@ class PoolFormerImageProcessor(metaclass=DummyObject):
|
||||
requires_backends(self, ["vision"])
|
||||
|
||||
|
||||
class PvtImageProcessor(metaclass=DummyObject):
|
||||
_backends = ["vision"]
|
||||
|
||||
def __init__(self, *args, **kwargs):
|
||||
requires_backends(self, ["vision"])
|
||||
|
||||
|
||||
class SamImageProcessor(metaclass=DummyObject):
|
||||
_backends = ["vision"]
|
||||
|
||||
|
||||
0
tests/models/pvt/__init__.py
Normal file
0
tests/models/pvt/__init__.py
Normal file
198
tests/models/pvt/test_image_processing_pvt.py
Normal file
198
tests/models/pvt/test_image_processing_pvt.py
Normal file
@ -0,0 +1,198 @@
|
||||
# coding=utf-8
|
||||
# Copyright 2023 HuggingFace Inc.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
|
||||
|
||||
import unittest
|
||||
|
||||
import numpy as np
|
||||
|
||||
from transformers.testing_utils import require_torch, require_vision
|
||||
from transformers.utils import is_torch_available, is_vision_available
|
||||
|
||||
from ...test_image_processing_common import ImageProcessingSavingTestMixin, prepare_image_inputs
|
||||
|
||||
|
||||
if is_torch_available():
|
||||
import torch
|
||||
|
||||
if is_vision_available():
|
||||
from PIL import Image
|
||||
|
||||
from transformers import PvtImageProcessor
|
||||
|
||||
|
||||
class PvtImageProcessingTester(unittest.TestCase):
|
||||
def __init__(
|
||||
self,
|
||||
parent,
|
||||
batch_size=7,
|
||||
num_channels=3,
|
||||
image_size=18,
|
||||
min_resolution=30,
|
||||
max_resolution=400,
|
||||
do_resize=True,
|
||||
size=None,
|
||||
do_normalize=True,
|
||||
image_mean=[0.485, 0.456, 0.406],
|
||||
image_std=[0.229, 0.224, 0.225],
|
||||
):
|
||||
size = size if size is not None else {"height": 18, "width": 18}
|
||||
self.parent = parent
|
||||
self.batch_size = batch_size
|
||||
self.num_channels = num_channels
|
||||
self.image_size = image_size
|
||||
self.min_resolution = min_resolution
|
||||
self.max_resolution = max_resolution
|
||||
self.do_resize = do_resize
|
||||
self.size = size
|
||||
self.do_normalize = do_normalize
|
||||
self.image_mean = image_mean
|
||||
self.image_std = image_std
|
||||
|
||||
def prepare_image_processor_dict(self):
|
||||
return {
|
||||
"image_mean": self.image_mean,
|
||||
"image_std": self.image_std,
|
||||
"do_normalize": self.do_normalize,
|
||||
"do_resize": self.do_resize,
|
||||
"size": self.size,
|
||||
}
|
||||
|
||||
|
||||
@require_torch
|
||||
@require_vision
|
||||
class PvtImageProcessingTest(ImageProcessingSavingTestMixin, unittest.TestCase):
|
||||
image_processing_class = PvtImageProcessor if is_vision_available() else None
|
||||
|
||||
def setUp(self):
|
||||
self.image_processor_tester = PvtImageProcessingTester(self)
|
||||
|
||||
@property
|
||||
def image_processor_dict(self):
|
||||
return self.image_processor_tester.prepare_image_processor_dict()
|
||||
|
||||
def test_image_processor_properties(self):
|
||||
image_processing = self.image_processing_class(**self.image_processor_dict)
|
||||
self.assertTrue(hasattr(image_processing, "image_mean"))
|
||||
self.assertTrue(hasattr(image_processing, "image_std"))
|
||||
self.assertTrue(hasattr(image_processing, "do_normalize"))
|
||||
self.assertTrue(hasattr(image_processing, "do_resize"))
|
||||
self.assertTrue(hasattr(image_processing, "size"))
|
||||
|
||||
def test_image_processor_from_dict_with_kwargs(self):
|
||||
image_processor = self.image_processing_class.from_dict(self.image_processor_dict)
|
||||
self.assertEqual(image_processor.size, {"height": 18, "width": 18})
|
||||
|
||||
image_processor = self.image_processing_class.from_dict(self.image_processor_dict, size=42)
|
||||
self.assertEqual(image_processor.size, {"height": 42, "width": 42})
|
||||
|
||||
def test_batch_feature(self):
|
||||
pass
|
||||
|
||||
def test_call_pil(self):
|
||||
# Initialize image_processing
|
||||
image_processing = self.image_processing_class(**self.image_processor_dict)
|
||||
# create random PIL images
|
||||
image_inputs = prepare_image_inputs(self.image_processor_tester, equal_resolution=False)
|
||||
for image in image_inputs:
|
||||
self.assertIsInstance(image, Image.Image)
|
||||
|
||||
# Test not batched input
|
||||
encoded_images = image_processing(image_inputs[0], return_tensors="pt").pixel_values
|
||||
self.assertEqual(
|
||||
encoded_images.shape,
|
||||
(
|
||||
1,
|
||||
self.image_processor_tester.num_channels,
|
||||
self.image_processor_tester.size["height"],
|
||||
self.image_processor_tester.size["width"],
|
||||
),
|
||||
)
|
||||
|
||||
# Test batched
|
||||
encoded_images = image_processing(image_inputs, return_tensors="pt").pixel_values
|
||||
self.assertEqual(
|
||||
encoded_images.shape,
|
||||
(
|
||||
self.image_processor_tester.batch_size,
|
||||
self.image_processor_tester.num_channels,
|
||||
self.image_processor_tester.size["height"],
|
||||
self.image_processor_tester.size["width"],
|
||||
),
|
||||
)
|
||||
|
||||
def test_call_numpy(self):
|
||||
# Initialize image_processing
|
||||
image_processing = self.image_processing_class(**self.image_processor_dict)
|
||||
# create random numpy tensors
|
||||
image_inputs = prepare_image_inputs(self.image_processor_tester, equal_resolution=False, numpify=True)
|
||||
for image in image_inputs:
|
||||
self.assertIsInstance(image, np.ndarray)
|
||||
|
||||
# Test not batched input
|
||||
encoded_images = image_processing(image_inputs[0], return_tensors="pt").pixel_values
|
||||
self.assertEqual(
|
||||
encoded_images.shape,
|
||||
(
|
||||
1,
|
||||
self.image_processor_tester.num_channels,
|
||||
self.image_processor_tester.size["height"],
|
||||
self.image_processor_tester.size["width"],
|
||||
),
|
||||
)
|
||||
|
||||
# Test batched
|
||||
encoded_images = image_processing(image_inputs, return_tensors="pt").pixel_values
|
||||
self.assertEqual(
|
||||
encoded_images.shape,
|
||||
(
|
||||
self.image_processor_tester.batch_size,
|
||||
self.image_processor_tester.num_channels,
|
||||
self.image_processor_tester.size["height"],
|
||||
self.image_processor_tester.size["width"],
|
||||
),
|
||||
)
|
||||
|
||||
def test_call_pytorch(self):
|
||||
# Initialize image_processing
|
||||
image_processing = self.image_processing_class(**self.image_processor_dict)
|
||||
# create random PyTorch tensors
|
||||
image_inputs = prepare_image_inputs(self.image_processor_tester, equal_resolution=False, torchify=True)
|
||||
for image in image_inputs:
|
||||
self.assertIsInstance(image, torch.Tensor)
|
||||
|
||||
# Test not batched input
|
||||
encoded_images = image_processing(image_inputs[0], return_tensors="pt").pixel_values
|
||||
self.assertEqual(
|
||||
encoded_images.shape,
|
||||
(
|
||||
1,
|
||||
self.image_processor_tester.num_channels,
|
||||
self.image_processor_tester.size["height"],
|
||||
self.image_processor_tester.size["width"],
|
||||
),
|
||||
)
|
||||
|
||||
# Test batched
|
||||
encoded_images = image_processing(image_inputs, return_tensors="pt").pixel_values
|
||||
self.assertEqual(
|
||||
encoded_images.shape,
|
||||
(
|
||||
self.image_processor_tester.batch_size,
|
||||
self.image_processor_tester.num_channels,
|
||||
self.image_processor_tester.size["height"],
|
||||
self.image_processor_tester.size["width"],
|
||||
),
|
||||
)
|
||||
331
tests/models/pvt/test_modeling_pvt.py
Normal file
331
tests/models/pvt/test_modeling_pvt.py
Normal file
@ -0,0 +1,331 @@
|
||||
# coding=utf-8
|
||||
# Copyright 2023 The HuggingFace Inc. team. All rights reserved.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
""" Testing suite for the PyTorch Pvt model. """
|
||||
|
||||
|
||||
import inspect
|
||||
import unittest
|
||||
|
||||
from transformers import is_torch_available, is_vision_available
|
||||
from transformers.models.auto import get_values
|
||||
from transformers.testing_utils import (
|
||||
require_accelerate,
|
||||
require_torch,
|
||||
require_torch_gpu,
|
||||
slow,
|
||||
torch_device,
|
||||
)
|
||||
|
||||
from ...test_configuration_common import ConfigTester
|
||||
from ...test_modeling_common import ModelTesterMixin, floats_tensor, ids_tensor
|
||||
|
||||
|
||||
if is_torch_available():
|
||||
import torch
|
||||
|
||||
from transformers import MODEL_MAPPING, PvtConfig, PvtForImageClassification, PvtImageProcessor, PvtModel
|
||||
from transformers.models.pvt.modeling_pvt import PVT_PRETRAINED_MODEL_ARCHIVE_LIST
|
||||
|
||||
|
||||
if is_vision_available():
|
||||
from PIL import Image
|
||||
|
||||
|
||||
class PvtConfigTester(ConfigTester):
|
||||
def run_common_tests(self):
|
||||
config = self.config_class(**self.inputs_dict)
|
||||
self.parent.assertTrue(hasattr(config, "hidden_sizes"))
|
||||
self.parent.assertTrue(hasattr(config, "num_encoder_blocks"))
|
||||
|
||||
|
||||
class PvtModelTester:
|
||||
def __init__(
|
||||
self,
|
||||
parent,
|
||||
batch_size=13,
|
||||
image_size=64,
|
||||
num_channels=3,
|
||||
num_encoder_blocks=4,
|
||||
depths=[2, 2, 2, 2],
|
||||
sr_ratios=[8, 4, 2, 1],
|
||||
hidden_sizes=[16, 32, 64, 128],
|
||||
downsampling_rates=[1, 4, 8, 16],
|
||||
num_attention_heads=[1, 2, 4, 8],
|
||||
is_training=True,
|
||||
use_labels=True,
|
||||
hidden_act="gelu",
|
||||
hidden_dropout_prob=0.1,
|
||||
attention_probs_dropout_prob=0.1,
|
||||
initializer_range=0.02,
|
||||
num_labels=3,
|
||||
scope=None,
|
||||
):
|
||||
self.parent = parent
|
||||
self.batch_size = batch_size
|
||||
self.image_size = image_size
|
||||
self.num_channels = num_channels
|
||||
self.num_encoder_blocks = num_encoder_blocks
|
||||
self.sr_ratios = sr_ratios
|
||||
self.depths = depths
|
||||
self.hidden_sizes = hidden_sizes
|
||||
self.downsampling_rates = downsampling_rates
|
||||
self.num_attention_heads = num_attention_heads
|
||||
self.is_training = is_training
|
||||
self.use_labels = use_labels
|
||||
self.hidden_act = hidden_act
|
||||
self.hidden_dropout_prob = hidden_dropout_prob
|
||||
self.attention_probs_dropout_prob = attention_probs_dropout_prob
|
||||
self.initializer_range = initializer_range
|
||||
self.num_labels = num_labels
|
||||
self.scope = scope
|
||||
|
||||
def prepare_config_and_inputs(self):
|
||||
pixel_values = floats_tensor([self.batch_size, self.num_channels, self.image_size, self.image_size])
|
||||
|
||||
labels = None
|
||||
if self.use_labels:
|
||||
labels = ids_tensor([self.batch_size, self.image_size, self.image_size], self.num_labels)
|
||||
|
||||
config = self.get_config()
|
||||
return config, pixel_values, labels
|
||||
|
||||
def get_config(self):
|
||||
return PvtConfig(
|
||||
image_size=self.image_size,
|
||||
num_channels=self.num_channels,
|
||||
num_encoder_blocks=self.num_encoder_blocks,
|
||||
depths=self.depths,
|
||||
hidden_sizes=self.hidden_sizes,
|
||||
num_attention_heads=self.num_attention_heads,
|
||||
hidden_act=self.hidden_act,
|
||||
hidden_dropout_prob=self.hidden_dropout_prob,
|
||||
attention_probs_dropout_prob=self.attention_probs_dropout_prob,
|
||||
initializer_range=self.initializer_range,
|
||||
)
|
||||
|
||||
def create_and_check_model(self, config, pixel_values, labels):
|
||||
model = PvtModel(config=config)
|
||||
model.to(torch_device)
|
||||
model.eval()
|
||||
result = model(pixel_values)
|
||||
self.parent.assertIsNotNone(result.last_hidden_state)
|
||||
|
||||
def create_and_check_for_image_classification(self, config, pixel_values, labels):
|
||||
config.num_labels = self.type_sequence_label_size
|
||||
model = PvtForImageClassification(config)
|
||||
model.to(torch_device)
|
||||
model.eval()
|
||||
result = model(pixel_values, labels=labels)
|
||||
self.parent.assertEqual(result.logits.shape, (self.batch_size, self.type_sequence_label_size))
|
||||
|
||||
# test greyscale images
|
||||
config.num_channels = 1
|
||||
model = PvtForImageClassification(config)
|
||||
model.to(torch_device)
|
||||
model.eval()
|
||||
|
||||
pixel_values = floats_tensor([self.batch_size, 1, self.image_size, self.image_size])
|
||||
result = model(pixel_values)
|
||||
self.parent.assertEqual(result.logits.shape, (self.batch_size, self.type_sequence_label_size))
|
||||
|
||||
def prepare_config_and_inputs_for_common(self):
|
||||
config_and_inputs = self.prepare_config_and_inputs()
|
||||
config, pixel_values, labels = config_and_inputs
|
||||
inputs_dict = {"pixel_values": pixel_values}
|
||||
return config, inputs_dict
|
||||
|
||||
|
||||
# We will verify our results on an image of cute cats
|
||||
def prepare_img():
|
||||
image = Image.open("./tests/fixtures/tests_samples/COCO/000000039769.png")
|
||||
return image
|
||||
|
||||
|
||||
@require_torch
|
||||
class PvtModelTest(ModelTesterMixin, unittest.TestCase):
|
||||
all_model_classes = (PvtModel, PvtForImageClassification) if is_torch_available() else ()
|
||||
|
||||
test_head_masking = False
|
||||
test_pruning = False
|
||||
test_resize_embeddings = False
|
||||
test_torchscript = False
|
||||
has_attentions = False
|
||||
|
||||
def setUp(self):
|
||||
self.model_tester = PvtModelTester(self)
|
||||
self.config_tester = PvtConfigTester(self, config_class=PvtConfig)
|
||||
|
||||
def test_config(self):
|
||||
self.config_tester.run_common_tests()
|
||||
|
||||
def test_model(self):
|
||||
config_and_inputs = self.model_tester.prepare_config_and_inputs()
|
||||
self.model_tester.create_and_check_model(*config_and_inputs)
|
||||
|
||||
@unittest.skip("Pvt does not use inputs_embeds")
|
||||
def test_inputs_embeds(self):
|
||||
pass
|
||||
|
||||
@unittest.skip("Pvt does not have get_input_embeddings method and get_output_embeddings methods")
|
||||
def test_model_common_attributes(self):
|
||||
pass
|
||||
|
||||
def test_initialization(self):
|
||||
config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
|
||||
|
||||
for model_class in self.all_model_classes:
|
||||
model = model_class(config=config)
|
||||
for name, param in model.named_parameters():
|
||||
self.assertTrue(
|
||||
-1.0 <= ((param.data.mean() * 1e9).round() / 1e9).item() <= 1.0,
|
||||
msg=f"Parameter {name} of model {model_class} seems not properly initialized",
|
||||
)
|
||||
|
||||
def test_hidden_states_output(self):
|
||||
def check_hidden_states_output(inputs_dict, config, model_class):
|
||||
model = model_class(config)
|
||||
model.to(torch_device)
|
||||
model.eval()
|
||||
|
||||
with torch.no_grad():
|
||||
outputs = model(**self._prepare_for_class(inputs_dict, model_class))
|
||||
|
||||
hidden_states = outputs.hidden_states
|
||||
|
||||
expected_num_layers = sum(self.model_tester.depths) + 1
|
||||
self.assertEqual(len(hidden_states), expected_num_layers)
|
||||
|
||||
# verify the first hidden states (first block)
|
||||
self.assertListEqual(
|
||||
list(hidden_states[0].shape[-3:]),
|
||||
[
|
||||
self.model_tester.batch_size,
|
||||
(self.model_tester.image_size // 4) ** 2,
|
||||
self.model_tester.image_size // 4,
|
||||
],
|
||||
)
|
||||
|
||||
config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
|
||||
|
||||
for model_class in self.all_model_classes:
|
||||
inputs_dict["output_hidden_states"] = True
|
||||
check_hidden_states_output(inputs_dict, config, model_class)
|
||||
|
||||
# check that output_hidden_states also work using config
|
||||
del inputs_dict["output_hidden_states"]
|
||||
config.output_hidden_states = True
|
||||
|
||||
check_hidden_states_output(inputs_dict, config, model_class)
|
||||
|
||||
def test_training(self):
|
||||
if not self.model_tester.is_training:
|
||||
return
|
||||
|
||||
config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
|
||||
config.return_dict = True
|
||||
|
||||
for model_class in self.all_model_classes:
|
||||
if model_class in get_values(MODEL_MAPPING):
|
||||
continue
|
||||
model = model_class(config)
|
||||
model.to(torch_device)
|
||||
model.train()
|
||||
inputs = self._prepare_for_class(inputs_dict, model_class, return_labels=True)
|
||||
loss = model(**inputs).loss
|
||||
loss.backward()
|
||||
|
||||
def test_forward_signature(self):
|
||||
config, _ = self.model_tester.prepare_config_and_inputs_for_common()
|
||||
|
||||
for model_class in self.all_model_classes:
|
||||
model = model_class(config)
|
||||
signature = inspect.signature(model.forward)
|
||||
# signature.parameters is an OrderedDict => so arg_names order is deterministic
|
||||
arg_names = [*signature.parameters.keys()]
|
||||
|
||||
expected_arg_names = ["pixel_values"]
|
||||
self.assertListEqual(arg_names[:1], expected_arg_names)
|
||||
|
||||
@slow
|
||||
def test_model_from_pretrained(self):
|
||||
for model_name in PVT_PRETRAINED_MODEL_ARCHIVE_LIST[:1]:
|
||||
model = PvtModel.from_pretrained(model_name)
|
||||
self.assertIsNotNone(model)
|
||||
|
||||
|
||||
@require_torch
|
||||
class PvtModelIntegrationTest(unittest.TestCase):
|
||||
@slow
|
||||
def test_inference_image_classification(self):
|
||||
# only resize + normalize
|
||||
image_processor = PvtImageProcessor.from_pretrained("Zetatech/pvt-tiny-224")
|
||||
model = PvtForImageClassification.from_pretrained("Zetatech/pvt-tiny-224").to(torch_device).eval()
|
||||
|
||||
image = prepare_img()
|
||||
encoded_inputs = image_processor(images=image, return_tensors="pt")
|
||||
pixel_values = encoded_inputs.pixel_values.to(torch_device)
|
||||
|
||||
with torch.no_grad():
|
||||
outputs = model(pixel_values)
|
||||
|
||||
expected_shape = torch.Size((1, model.config.num_labels))
|
||||
self.assertEqual(outputs.logits.shape, expected_shape)
|
||||
|
||||
expected_slice = torch.tensor([-1.4192, -1.9158, -0.9702]).to(torch_device)
|
||||
|
||||
self.assertTrue(torch.allclose(outputs.logits[0, :3], expected_slice, atol=1e-4))
|
||||
|
||||
@slow
|
||||
def test_inference_model(self):
|
||||
model = PvtModel.from_pretrained("Zetatech/pvt-tiny-224").to(torch_device).eval()
|
||||
|
||||
image_processor = PvtImageProcessor.from_pretrained("Zetatech/pvt-tiny-224")
|
||||
image = prepare_img()
|
||||
inputs = image_processor(images=image, return_tensors="pt")
|
||||
pixel_values = inputs.pixel_values.to(torch_device)
|
||||
|
||||
# forward pass
|
||||
with torch.no_grad():
|
||||
outputs = model(pixel_values)
|
||||
|
||||
# verify the logits
|
||||
expected_shape = torch.Size((1, 50, 512))
|
||||
self.assertEqual(outputs.last_hidden_state.shape, expected_shape)
|
||||
|
||||
expected_slice = torch.tensor(
|
||||
[[-0.3086, 1.0402, 1.1816], [-0.2880, 0.5781, 0.6124], [0.1480, 0.6129, -0.0590]]
|
||||
).to(torch_device)
|
||||
|
||||
self.assertTrue(torch.allclose(outputs.last_hidden_state[0, :3, :3], expected_slice, atol=1e-4))
|
||||
|
||||
@slow
|
||||
@require_accelerate
|
||||
@require_torch_gpu
|
||||
def test_inference_fp16(self):
|
||||
r"""
|
||||
A small test to make sure that inference work in half precision without any problem.
|
||||
"""
|
||||
model = PvtForImageClassification.from_pretrained(
|
||||
"Zetatech/pvt-tiny-224", torch_dtype=torch.float16, device_map="auto"
|
||||
)
|
||||
image_processor = PvtImageProcessor(size=224)
|
||||
|
||||
image = prepare_img()
|
||||
inputs = image_processor(images=image, return_tensors="pt")
|
||||
pixel_values = inputs.pixel_values.to(torch_device).astype(torch.float16)
|
||||
|
||||
# forward pass to make sure inference works in fp16
|
||||
with torch.no_grad():
|
||||
_ = model(pixel_values)
|
||||
Loading…
Reference in New Issue
Block a user