许可协议: Apache-2.0
任务类型: 掩码生成
库名称: sam2

SAM 2（Segment Anything in Images and Videos）项目仓库，这是FAIR研发的面向图像与视频可提示视觉分割的基础模型。更多信息请参阅SAM 2论文。

官方代码已发布于该仓库。

使用方法

图像预测

import torch  
from sam2.sam2_image_predictor import SAM2ImagePredictor  

predictor = SAM2ImagePredictor.from_pretrained("facebook/sam2-hiera-small")  

with torch.inference_mode(), torch.autocast("cuda", dtype=torch.bfloat16):  
    predictor.set_image(<你的图像>)  
    masks, _, _ = predictor.predict(<输入提示>)  

视频预测

import torch  
from sam2.sam2_video_predictor import SAM2VideoPredictor  

predictor = SAM2VideoPredictor.from_pretrained("facebook/sam2-hiera-small")  

with torch.inference_mode(), torch.autocast("cuda", dtype=torch.bfloat16):  
    state = predictor.init_state(<你的视频>)  

    # 添加新提示并立即获取当前帧输出  
    frame_idx, object_ids, masks = predictor.add_new_points_or_box(state, <你的提示>):  

    # 传播提示以获取整个视频的掩码片段  
    for frame_idx, object_ids, masks in predictor.propagate_in_video(state):  
        ...  

详情请参考演示笔记本。

引用

如需引用论文、模型或软件，请使用以下格式：

@article{ravi2024sam2,  
  title={SAM 2: Segment Anything in Images and Videos},  
  author={Ravi, Nikhila and Gabeur, Valentin and Hu, Yuan-Ting and Hu, Ronghang and Ryali, Chaitanya and Ma, Tengyu and Khedr, Haitham and R{\"a}dle, Roman and Rolland, Chloe and Gustafson, Laura and Mintun, Eric and Pan, Junting and Alwala, Kalyan Vasudev and Carion, Nicolas and Wu, Chao-Yuan and Girshick, Ross and Doll{\'a}r, Piotr and Feichtenhofer, Christoph},  
  journal={arXiv preprint arXiv:2408.00714},  
  url={https://arxiv.org/abs/2408.00714},  
  year={2024}  
}