新闻视频分析是视频分析领域的重要课题.提出了一种基于知识的新闻视频分析方法——二阶段模板匹配法,用于检测新闻节目中主持人口播镜头,从而为新闻单元的定位提供基本依据.该方法具有通用性和实时性的特点,可以在新闻视频的自动分析或自动索引系统中得到实际应用.%News video analysis is an important field of video analysis. Inthis paper a knowledge-based analysis method for news video——a two-stage template matching method-to detect the anchorperson shot of news video is presented, which is a fundamental step for segmenting news video units. The method is both generic and real-time, and can be used in automatic news video analyzing and indexing systems.
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