In this repo, we distill the powerful segment anything models into lightweight yoso models for efficient image segmentation (yoso is a framework aiming to achieve real-time panoptic segmentation). Specifically, we replace the heavy ViT image encoder with yoso image encoder. This provides over 10 times speedup for extracting image features with a single RTX 3090 GPU. Currently, we release demo checkpoints here, and will update them when we obtain more accurate ones.

• Good segmentation results

• Bad segmentation results

We recommend to use Anaconda for installation.

conda create --name sam_mini python=3.8 -y
conda install pytorch==1.10.1 torchvision==0.11.2 cudatoolkit=11.3 -c pytorch
pip install git+https://github.com/facebookresearch/detectron2.git
pip install git+https://github.com/facebookresearch/segment-anything.git
pip install opencv-python pycocotools matplotlib

• 2023/04/27: sam_yoso_r50_13a999.pth

After loading the lightweight model, the remaining operations keep the same as segment anything.

• Predictor:

from mini_segment_anything import build_sam_yoso_r50
from segment_anything import SamPredictor

sam_checkpoint = './sam_yoso_r50_13a999.pth'
sam_mini = build_sam_yoso_r50(checkpoint=sam_checkpoint).to('cuda')
predictor_mini = SamPredictor(sam_mini)

• Automatic mask generator:

from mini_segment_anything import build_sam_yoso_r50
from segment_anything import SamAutomaticMaskGenerator

sam_checkpoint = './sam_yoso_r50_13a999.pth'
sam_mini = build_sam_yoso_r50(checkpoint=sam_checkpoint).to('cuda')
mask_generator_mini = SamAutomaticMaskGenerator(sam_mini)

More details can be found in './demo.ipynb'.

• Distill with image encoder.
• Distill with mask decoder.

If you find this project helpful for your research, please consider citing the following BibTeX entry.

@article{kirillov2023segany,
  title={Segment Anything}, 
  author={Kirillov, Alexander and Mintun, Eric and Ravi, Nikhila and Mao, Hanzi and Rolland, Chloe and Gustafson, Laura and Xiao, Tete and Whitehead, Spencer and Berg, Alexander C. and Lo, Wan-Yen and Doll{\'a}r, Piotr and Girshick, Ross},
  journal={arXiv:2304.02643},
  year={2023}
}

@article{hu2023yoso,
  title={You Only Segment Once: Towards Real-Time Panoptic Segmentation},
  author={Hu, Jie and Huang, Linyan and Ren, Tianhe and Zhang, Shengchuan and Ji, Rongrong and Cao, Liujuan},
  journal={arXiv preprint arXiv:2303.14651},
  year={2023}
}