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Block Characteristic Based Object Segmentation in H.264 Compressed Domain
Author(s): 
Pages: 13-15,19
Year: Issue:  9
Journal: Video Engineering

Abstract: 针对H.264压缩域,提出一种改进的运动对象分割方法.首先提取运动矢量场,对该矢量场进行矢量中值滤波,然后基于块进行前向矢量累积获得更加显著的矢量场,最后采用改进的K均值和EM的混合分层聚类方法,基于宏块层、块层两次聚类将运动对象分割出来.实验表明,该方法通过分层聚类,进一步提高了分割效率,能实现满足实时要求的较精确分割.
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