摘要
针对突变和渐变的特点,实现了一种基于帧差和非相邻帧差的自适应镜头检测方法。方法通过计算相邻帧差有效地检测突变镜头,通过计算非相邻帧差实现对渐变镜头的有效检测,二者结合可检测出几乎所有的突变和渐变镜头,获得了良好的综合检测效果。该方法不用设全局阈值,适应性强且计算量小,实验结果表明了方法的通用性和有效性。
According to the characters of abrupt change and gradual change,a self-adaptive method of shot detection based on neighbor frame difference and non-neighbor frame difference is realized in this paper.By computing neighbor frame difference,this method can effectively detect abruput change.By computing non-neighbor frame difference,gradual changes can be effectively detected.Integrating the two methods,it can almost detect all shot boundaries no matter what the shot change type is.This method does not need to set global threshold and has high adaptability with low computation cost.Experimental results show it is adaptive and efficient.
出处
《计算机工程与应用》
CSCD
北大核心
2007年第24期212-215,共4页
Computer Engineering and Applications
基金
山东师范大学学位论文创新项目(No.y2005G21)
关键词
相邻帧差非相邻帧差自适应镜头检测
neighbor frame difference
non-neighbor frame difference
self-adaptive
shot detection
