timm
/

Image Feature Extraction
timm
PyTorch
Safetensors
rwightman HF staff commited on
Commit
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  1. README.md +111 -0
  2. config.json +34 -0
  3. model.safetensors +3 -0
  4. pytorch_model.bin +3 -0
README.md ADDED
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+ ---
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+ tags:
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+ - image-classification
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+ - timm
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+ library_name: timm
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+ license: apache-2.0
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+ ---
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+ # Model card for samvit_base_patch16.sa1b
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+
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+ A Segment-Anything Vision Transformer (SAM ViT) image feature model (NOTE: for features and fine-tune, segmentation head not included). Pretrained on SA-1B for segementation by paper authors w/ initialization from MAE weights.
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+
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+
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+ ## Model Details
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+ - **Model Type:** Image classification / feature backbone
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+ - **Model Stats:**
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+ - Params (M): 89.7
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+ - GMACs: 486.4
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+ - Activations (M): 1343.3
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+ - Image size: 1024 x 1024
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+ - **Papers:**
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+ - Segment Anything: https://arxiv.org/abs/2304.02643
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+ - An Image is Worth 16x16 Words: Transformers for Image Recognition at Scale: https://arxiv.org/abs/2010.11929v2
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+ - **Original:** https://github.com/facebookresearch/segment-anything
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+ - **Pretrain Dataset:** SA-1B
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+
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+ ## Model Usage
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+ ### Image Classification
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+ ```python
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+ from urllib.request import urlopen
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+ from PIL import Image
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+ import timm
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+
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+ img = Image.open(urlopen(
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+ 'https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/beignets-task-guide.png'
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+ ))
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+
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+ model = timm.create_model('samvit_base_patch16.sa1b', pretrained=True)
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+ model = model.eval()
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+
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+ # get model specific transforms (normalization, resize)
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+ data_config = timm.data.resolve_model_data_config(model)
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+ transforms = timm.data.create_transform(**data_config, is_training=False)
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+
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+ output = model(transforms(img).unsqueeze(0)) # unsqueeze single image into batch of 1
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+
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+ top5_probabilities, top5_class_indices = torch.topk(output.softmax(dim=1) * 100, k=5)
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+ ```
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+
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+ ### Image Embeddings
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+ ```python
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+ from urllib.request import urlopen
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+ from PIL import Image
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+ import timm
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+
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+ img = Image.open(urlopen(
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+ 'https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/beignets-task-guide.png'
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+ ))
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+
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+ model = timm.create_model(
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+ 'samvit_base_patch16.sa1b',
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+ pretrained=True,
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+ num_classes=0, # remove classifier nn.Linear
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+ )
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+ model = model.eval()
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+
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+ # get model specific transforms (normalization, resize)
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+ data_config = timm.data.resolve_model_data_config(model)
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+ transforms = timm.data.create_transform(**data_config, is_training=False)
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+
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+ output = model(transforms(img).unsqueeze(0)) # output is (batch_size, num_features) shaped tensor
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+
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+ # or equivalently (without needing to set num_classes=0)
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+
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+ output = model.forward_features(transforms(img).unsqueeze(0))
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+ # output is unpooled, a (1, 256, 64, 64) shaped tensor
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+
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+ output = model.forward_head(output, pre_logits=True)
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+ # output is a (1, num_features) shaped tensor
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+ ```
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+
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+ ## Model Comparison
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+ Explore the dataset and runtime metrics of this model in timm [model results](https://github.com/huggingface/pytorch-image-models/tree/main/results).
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+
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+ ## Citation
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+ ```bibtex
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+ @article{kirillov2023segany,
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+ title={Segment Anything},
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+ author={Kirillov, Alexander and Mintun, Eric and Ravi, Nikhila and Mao, Hanzi and Rolland, Chloe and Gustafson, Laura and Xiao, Tete and Whitehead, Spencer and Berg, Alexander C. and Lo, Wan-Yen and Doll{'a}r, Piotr and Girshick, Ross},
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+ journal={arXiv:2304.02643},
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+ year={2023}
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+ }
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+ ```
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+ ```bibtex
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+ @article{dosovitskiy2020vit,
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+ title={An Image is Worth 16x16 Words: Transformers for Image Recognition at Scale},
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+ author={Dosovitskiy, Alexey and Beyer, Lucas and Kolesnikov, Alexander and Weissenborn, Dirk and Zhai, Xiaohua and Unterthiner, Thomas and Dehghani, Mostafa and Minderer, Matthias and Heigold, Georg and Gelly, Sylvain and Uszkoreit, Jakob and Houlsby, Neil},
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+ journal={ICLR},
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+ year={2021}
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+ }
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+ ```
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+ ```bibtex
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+ @misc{rw2019timm,
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+ author = {Ross Wightman},
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+ title = {PyTorch Image Models},
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+ year = {2019},
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+ publisher = {GitHub},
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+ journal = {GitHub repository},
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+ doi = {10.5281/zenodo.4414861},
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+ howpublished = {\url{https://github.com/huggingface/pytorch-image-models}}
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+ }
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+ ```
config.json ADDED
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+ {
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+ "architecture": "samvit_base_patch16",
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+ "num_classes": 0,
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+ "num_features": 768,
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+ "global_pool": "avg",
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+ "pretrained_cfg": {
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+ "tag": "sa1b",
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+ "custom_load": false,
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+ "input_size": [
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+ 3,
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+ 1024,
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+ 1024
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+ ],
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+ "fixed_input_size": true,
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+ "interpolation": "bicubic",
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+ "crop_pct": 1.0,
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+ "crop_mode": "center",
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+ "mean": [
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+ 0.485,
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+ 0.456,
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+ 0.406
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+ ],
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+ "std": [
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+ 0.229,
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+ 0.224,
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+ 0.225
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+ ],
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+ "num_classes": 0,
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+ "pool_size": null,
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+ "first_conv": "patch_embed.proj",
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+ "classifier": "head",
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+ "license": "apache-2.0"
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+ }
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+ }
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