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DaViT

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DaViT

Category: ViT · Code: timm/models/davit.py · Architectures: 8 · Pretrained weights: 5 (3 with ImageNet-1k results)

Dual Attention Vision Transformers (DaViT) combine spatial window attention and channel group attention, both linear in the number of tokens, in a hierarchical design.

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('davit_tiny.msft_in1k', pretrained=True)
>>> data_config = timm.data.resolve_model_data_config(model)

Model API support

FeatureDaVit
features_only=True feature maps✓ (strides 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 (DaVit with davit_tiny 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
davit_base87.9515.512241
davit_base_fl90.37190.327681
davit_giant1406.47192.922240
davit_huge348.9261.232240
davit_huge_fl360.64744.847681
davit_large196.8134.602240
davit_small49.758.802241
davit_tiny28.364.542241

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.

Weights are grouped by source: the paper or origin given in the pretrained config, else a Hub organization other than timm, else the first part of the pretrained tag (architecture.tag). Sources with a single weight are listed under other.

msft tags

WeightInput sizeTop-1 (%)Eval sizeClassesLicenseHub
davit_base.msft_in1k22484.6522241000apache-2.0timm
davit_small.msft_in1k22484.2522241000apache-2.0timm
davit_tiny.msft_in1k22482.6942241000apache-2.0timm

microsoft

Hosted by microsoft on the Hugging Face Hub.

WeightInput sizeTop-1 (%)Eval sizeClassesLicenseHub
davit_base_fl.msft_florence2768--noneapache-2.0microsoft/Florence-2-base
davit_huge_fl.msft_florence2768--noneapache-2.0microsoft/Florence-2-large
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