Automatic Video Object Segmentation using Graph Cut

This paper presents an algorithm for automatic video object planes extraction from coarse to fine. For the case of single moving object in a scene, block-based segmentation defines regions of foreground, background and boundary blocks. Then, the segmentation problem is formulated as an energy minimization problem which is settled by using graph cut algorithm. Automatic segmentation can be realized by obtaining prior knowledge from foreground and background blocks and computation complex is reduced by restricting the refined segmentation region to boundary blocks. Experimental results show the effectiveness of proposed algorithm. It is can be implemented in the head-and-shoulder video sequence segmentation applications.