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中文摘要：
针对传统镜头边界检测算法在阈值选取上的局限性,提出了基于镜头时间连续性的时间因子和基于镜头运动相关性的运动差异因子概念,并基于该双因子设定自适应阈值,将其运用于MPEG-2压缩域视频中.结果表明,该算法能够减少漏检和镜头运动造成的误检,有效提高镜头边界检测的准确率.
英文摘要：
Traditional shot boundary detection methods share some limitation in threshold defining. The dual factors including time factor and motion difference factor were introduced. The dual-factor based adaptive threshold was put in the MPEG-2 video shot boundary detection method. The experiments verify that this method can reduce leak detections and false detections caused by camera motion effectively.
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