基于直方图帧差的自适应镜头分割算法

Adaptive shot segmentation method based on histogram frame difference

提出一种改进的基于亮度直方图帧差的自适应镜头分割算法,该方法包括突变镜头的检测过程和渐变镜头的渐变过程,这两个处理过程由相邻两帧的亮度直方图帧差与自适应阈值的比较来自动进行选择,在突变镜头的检测过程中加入隔帧帧差法检测闪光灯,渐变镜头的检测采用基于帧间差方差的方法。实验结果表明,改进算法具有很好的检测效果,且计算复杂度低,易于实现。

An improved adaptive shot segmentation method based on intensity histogram frame difference is proposed.The approach contains two processing modes.One is dedicated to detection of abrupt shot,and the other for detection of gradual shot.These two modes are selected automatically according to comparing intensity histogram frame difference with adaptive threshold.The discontinuous frame difference is used to detect flashlight in the process of the detection of abrupt shot.The gradual transition is detected based on the variance of frame difference.Experimental results show that the proposed algorithm performs better results.