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timm/
tresnet_m.miil_in1k_448

Name: tresnet_m.miil_in1k_448
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Model card for tresnet_m.miil_in1k_448

A TResNet image classification model. Trained on ImageNet-1k by paper authors.

The weights for this model have been remapped and modified from the originals to work with standard BatchNorm instead of InplaceABN. inplace_abn can be problematic to build recently and ends up slower with memory_format=channels_last, torch.compile(), etc.

Model Details

Model Type: Image classification / feature backbone
Model Stats:
- Params (M): 31.4
- GMACs: 23.0
- Activations (M): 29.2
- Image size: 448 x 448
Papers:
- TResNet: High Performance GPU-Dedicated Architecture: https://arxiv.org/abs/2003.13630
Dataset: ImageNet-1k
Original: https://github.com/Alibaba-MIIL/TResNet

Model Usage

Image Classification

python

from urllib.request import urlopen
from PIL import Image
import timm

img = Image.open(urlopen(
    'https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/beignets-task-guide.png'
))

model = timm.create_model('tresnet_m.miil_in1k_448', pretrained=True)
model = model.eval()

# get model specific transforms (normalization, resize)
data_config = timm.data.resolve_model_data_config(model)
transforms = timm.data.create_transform(**data_config, is_training=False)

output = model(transforms(img).unsqueeze(0))  # unsqueeze single image into batch of 1

top5_probabilities, top5_class_indices = torch.topk(output.softmax(dim=1) * 100, k=5)

Feature Map Extraction

python

from urllib.request import urlopen
from PIL import Image
import timm

img = Image.open(urlopen(
    'https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/beignets-task-guide.png'
))

model = timm.create_model(
    'tresnet_m.miil_in1k_448',
    pretrained=True,
    features_only=True,
)
model = model.eval()

# get model specific transforms (normalization, resize)
data_config = timm.data.resolve_model_data_config(model)
transforms = timm.data.create_transform(**data_config, is_training=False)

output = model(transforms(img).unsqueeze(0))  # unsqueeze single image into batch of 1

for o in output:
    # print shape of each feature map in output
    # e.g.:
    #  torch.Size([1, 64, 112, 112])
    #  torch.Size([1, 128, 56, 56])
    #  torch.Size([1, 1024, 28, 28])
    #  torch.Size([1, 2048, 14, 14])

    print(o.shape)

Image Embeddings

python

from urllib.request import urlopen
from PIL import Image
import timm

img = Image.open(urlopen(
    'https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/beignets-task-guide.png'
))

model = timm.create_model(
    'tresnet_m.miil_in1k_448',
    pretrained=True,
    num_classes=0,  # remove classifier nn.Linear
)
model = model.eval()

# get model specific transforms (normalization, resize)
data_config = timm.data.resolve_model_data_config(model)
transforms = timm.data.create_transform(**data_config, is_training=False)

output = model(transforms(img).unsqueeze(0))  # output is (batch_size, num_features) shaped tensor

# or equivalently (without needing to set num_classes=0)

output = model.forward_features(transforms(img).unsqueeze(0))
# output is unpooled, a (1, 2048, 14, 14) shaped tensor

output = model.forward_head(output, pre_logits=True)
# output is a (1, num_features) shaped tensor

Citation

bibtex

@misc{ridnik2020tresnet,
    title={TResNet: High Performance GPU-Dedicated Architecture},
    author={Tal Ridnik and Hussam Lawen and Asaf Noy and Itamar Friedman},
    year={2020},
    eprint={2003.13630},
    archivePrefix={arXiv},
    primaryClass={cs.CV}
}

timm/tresnet_m.miil_in1k_448

Model card for tresnet_m.miil_in1k_448

Model Details

Model Usage

Image Classification

Feature Map Extraction

Image Embeddings

Citation

timm/
tresnet_m.miil_in1k_448