timm documentation

VGG

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VGG

Category: CNN · Code: timm/models/vgg.py · Architectures: 8 · Pretrained weights: 8 (8 with ImageNet-1k results)

VGG networks of stacked 3x3 convolutions, adapted from torchvision with timm functionality added.

Papers

Usage

See the Quickstart for loading pretrained weights, image preprocessing and fine-tuning, and Feature Extraction for using the models as backbones.

>>> import timm
>>> model = timm.create_model('vgg11.tv_in1k', pretrained=True)
>>> data_config = timm.data.resolve_model_data_config(model)

Model API support

FeatureVGG
features_only=True feature maps✓ (strides 1, 2, 4, 8, 16, 32)
forward_intermediates()✗
prune_intermediate_layers()✗
Any input size, no changes needed✓
set_input_size()–
dynamic_img_size=True–
set_grad_checkpointing()✗
Layer-wise LR decay (group_matcher())✓
reset_classifier()✓

✓ supported, ✓ (square) works for square sizes only, ✗ not supported, – not needed (the model already accepts any input size). Checked by running each feature on a randomly initialized model (VGG with vgg11 at 224), other architectures of the same class are expected to behave the same. See the Model API page for details.

Architectures

ArchitectureParams (M)GMACsInput sizePretrained weights
vgg11132.867.612241
vgg11_bn132.877.622241
vgg13133.0511.312241
vgg13_bn133.0511.332241
vgg16138.3615.472241
vgg16_bn138.3715.502241
vgg19143.6719.632241
vgg19_bn143.6819.662241

GMACs and parameter counts are for the default input size and classifier of each architecture, from the benchmark results.

Pretrained weights

Top-1 is ImageNet-1k validation accuracy from results-imagenet.csv at the listed eval size, - if the weight has no ImageNet-1k result (e.g. pretraining or image-text weights). Classes is the size of the pretrained classifier, none for weights without one.

WeightInput sizeTop-1 (%)Eval sizeClassesLicenseHub
vgg11.tv_in1k22469.0502241000bsd-3-clausetimm
vgg11_bn.tv_in1k22470.3742241000bsd-3-clausetimm
vgg13.tv_in1k22469.9502241000bsd-3-clausetimm
vgg13_bn.tv_in1k22471.5602241000bsd-3-clausetimm
vgg16.tv_in1k22471.5942241000bsd-3-clausetimm
vgg16_bn.tv_in1k22473.3542241000bsd-3-clausetimm
vgg19.tv_in1k22472.4002241000bsd-3-clausetimm
vgg19_bn.tv_in1k22474.2302241000bsd-3-clausetimm
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