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timm/nextvit_large.bd_ssld_6m_in1k_384

sourceHugging Faceapache-2.0updated 2y agoView on Hugging Face
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Model Card

Model card for nextvitlarge.bdssld6min1k_384

A Next-ViT image classification model. Trained by paper authors on an unknown 6M sample dataset and ImageNet-1k using SSLD distillation.

Model Details

  • Model Type: Image classification / feature backbone
  • Model Stats:
  • Params (M): 57.9
  • GMACs: 31.5
  • Activations (M): 80.4
  • Image size: 384 x 384
  • Pretrain Dataset: Unknown-6M
  • Dataset: ImageNet-1k
  • Papers:
  • Next-ViT: Next Generation Vision Transformer for Efficient Deployment in Realistic Industrial Scenarios: https://arxiv.org/abs/2207.05501
  • Original: https://github.com/bytedance/Next-ViT

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('nextvit_large.bd_ssld_6m_in1k_384', 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(
    'nextvit_large.bd_ssld_6m_in1k_384',
    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, 96, 96, 96])
    #  torch.Size([1, 256, 48, 48])
    #  torch.Size([1, 512, 24, 24])
    #  torch.Size([1, 1024, 12, 12])

    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(
    'nextvit_large.bd_ssld_6m_in1k_384',
    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, 1024, 12, 12) shaped tensor

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

Model Comparison

By Top-1

modeltop1top1_errtop5top5_errparam_count
nextvitlarge.bdssld6min1k_38486.54213.45898.1421.85857.87
nextvitbase.bdssld6min1k_38486.35213.64898.041.9644.82
nextvitsmall.bdssld6min1k_38485.96414.03697.9082.09231.76
nextvitlarge.bdssld6min1k85.4814.5297.6962.30457.87
nextvitbase.bdssld6min1k85.18614.81497.592.4144.82
nextvitlarge.bdin1k_38484.92415.07697.2942.70657.87
nextvitsmall.bdssld6min1k84.86215.13897.3822.61831.76
nextvitbase.bdin1k_38484.70615.29497.2242.77644.82
nextvitsmall.bdin1k_38484.02215.97896.993.0131.76
nextvitlarge.bdin1k83.62616.37496.6943.30657.87
nextvitbase.bdin1k83.47216.52896.6563.34444.82
nextvitsmall.bdin1k82.6117.3996.2263.77431.76

Citation

bibtex
@article{li2022next,
  title={Next-ViT: Next Generation Vision Transformer for Efficient Deployment in Realistic Industrial Scenarios},
  author={Li, Jiashi and Xia, Xin and Li, Wei and Li, Huixia and Wang, Xing and Xiao, Xuefeng and Wang, Rui and Zheng, Min and Pan, Xin},
  journal={arXiv preprint arXiv:2207.05501},
  year={2022}
}