Model card for mambaout_small.in1k

A MambaOut image classification model. Pretrained on ImageNet-1k by paper authors.

Model Details

• Model Type: Image classification / feature backbone
• Model Stats:
  • Params (M): 48.5
  • GMACs: 9.0
  • Activations (M): 27.7
  • Image size: train = 224 x 224, test = 288 x 288
• Dataset: ImageNet-1k
• Papers:
  • MambaOut: Do We Really Need Mamba for Vision?: https://arxiv.org/abs/2405.07992
• Original: https://github.com/yuweihao/MambaOut

Model Usage

Image Classification

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('mambaout_small.in1k', 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

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(
    'mambaout_small.in1k',
    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, 56, 56, 96])
    #  torch.Size([1, 28, 28, 192])
    #  torch.Size([1, 14, 14, 384])
    #  torch.Size([1, 7, 7, 576])

    print(o.shape)

Image Embeddings

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(
    'mambaout_small.in1k',
    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, 7, 7, 576) shaped tensor

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

Model Comparison

By Top-1

model	img_size	top1	top5	param_count
mambaout_base_plus_rw.sw_e150_r384_in12k_ft_in1k	384	87.506	98.428	101.66
mambaout_base_plus_rw.sw_e150_in12k_ft_in1k	288	86.912	98.236	101.66
mambaout_base_plus_rw.sw_e150_in12k_ft_in1k	224	86.632	98.156	101.66
mambaout_base_tall_rw.sw_e500_in1k	288	84.974	97.332	86.48
mambaout_base_wide_rw.sw_e500_in1k	288	84.962	97.208	94.45
mambaout_base_short_rw.sw_e500_in1k	288	84.832	97.27	88.83
mambaout_base.in1k	288	84.72	96.93	84.81
mambaout_small_rw.sw_e450_in1k	288	84.598	97.098	48.5
mambaout_small.in1k	288	84.5	96.974	48.49
mambaout_base_wide_rw.sw_e500_in1k	224	84.454	96.864	94.45
mambaout_base_tall_rw.sw_e500_in1k	224	84.434	96.958	86.48
mambaout_base_short_rw.sw_e500_in1k	224	84.362	96.952	88.83
mambaout_base.in1k	224	84.168	96.68	84.81
mambaout_small.in1k	224	84.086	96.63	48.49
mambaout_small_rw.sw_e450_in1k	224	84.024	96.752	48.5
mambaout_tiny.in1k	288	83.448	96.538	26.55
mambaout_tiny.in1k	224	82.736	96.1	26.55
mambaout_kobe.in1k	288	81.054	95.718	9.14
mambaout_kobe.in1k	224	79.986	94.986	9.14
mambaout_femto.in1k	288	79.848	95.14	7.3
mambaout_femto.in1k	224	78.87	94.408	7.3

Citation

@article{yu2024mambaout,
  title={MambaOut: Do We Really Need Mamba for Vision?},
  author={Yu, Weihao and Wang, Xinchao},
  journal={arXiv preprint arXiv:2405.07992},
  year={2024}
}