【摘要】 通常的镜头检测方法都是利用帧间差来计算镜头边界的检测阈值,该文提出了一种基于二次帧差的突变镜头检测方法。该方法利用相邻帧之间黄金分块对应区间的HSV直方图距离,计算加权后的帧间差,然后通过计算二次帧差有效地消除边界检测阈值对镜头内容变化的敏感性。该方法不需设置全局阈值,适应性强。实验表明该算法取得了良好的检测效果。更多还原

【Abstract】 Shot detection method often uses difference between frames to compute boundary detection threshold.In this paper,A quadratic difference based method for abrupt shot detection is presented.Weighted Difference of neighbored frames is computed according to the HSV histogram distance of correspondence golden blocks between neighbor frames.Then that the problem of detection threshold is sensitive to the content change of shot is solved by computing quadrat-ic difference between neighbor frames.Global threshold doesn’t need to compute in our method.So our method can adapt to any videos.Experiment shows that our method performs better results.更多还原