首先进行视频对象分割，求出运动目标的形心。
Firstly, video objects were segmented and their centroids were calculated.
文章介绍了基于内容的时域及空域视频分割技术，提出了一种基于多帧差异的视频对象分割算法。
This paper introduces video segmentation of temporal segmentation and spatial segmentation, presents a video object segmentation algorithm based on multi-frames difference.
视频对象分割在基于内容的视频编码和视频检索中均有重要的应用。
Video object segmentation has important application in content-based video encoding and video retrieval.
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