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Automatic extraction of moving objects for head-shoulder video sequence

机译:自动提取头肩视频序列中的运动对象

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摘要

Recently, video object extraction has received great attention because it is a critical technique in object-based video processing. This paper presents a temporal-to-spatial segmentation technique to extract object from a video sequence. The temporal phase employs a simple blockwise temporal-activity measure to approximately locate the object boundary. And then a block-based maximum a posteriori (MAP) scheme, which exploits spatial features of image blocks around the approximated boundary, is adopted to refine the temporal segmentation result. The proposed technique achieves good segmentation quality with very low computational cost for head-and-shoulder sequences with static background.
机译:近年来,由于视频对象提取是基于对象的视频处理中的关键技术,因此备受关注。本文提出了一种时空分割技术,可以从视频序列中提取对象。时间阶段采用简单的逐块时间活动性度量来大致定位对象边界。然后采用基于块的最大后验(MAP)方案,该方案利用图像边界附近的图像块的空间特征来细化时间分割结果。对于具有静态背景的头肩序列,所提出的技术以非常低的计算成本实现了良好的分割质量。

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