关键词: 相邻帧差, 非相邻帧差, 自适应, 镜头检测

Abstract: 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.

Key words: neighbor frame difference, non-neighbor frame difference, self-adaptive, shot detection