摘要
提出了一种基于双阈值法改进的镜头边界检测算法。该方法的优势在于通过复检有效降低了突变镜头以及淡入淡出渐变镜头的误检率,同时该方法针对包含较多视频帧的镜头给出了一种进行溶解型渐变镜头检测的方法,有效地提高了溶解型渐变镜头的检出率。实验表明与原算法相比其查全率约提高了11%。
This paper presents a shot boundary detection algorithm based on improving the twin-threshold method. Through re-examination the detecting result of the twin-threshold method,this algorithm effectively reduces the error rate both of the abrupt shot change and the fade shot change; it also presents a dissolve shot change detection method which can detect more dissolve shot. Compared to the original algorithm,the improved algorithm enhances the recall ratio at about 11%.
出处
《微计算机应用》
2010年第7期11-16,共6页
Microcomputer Applications
基金
国家高技术研究发展计划(863计划)
项目编号: 2008AA01Z147
关键词
镜头边界检测
帧间差异
淡入淡出
溶解
shot boundary detection
frame difference
fade in and fade out
dissolve
