基于因果的自适应双阈值镜头边界检测算法

将因果检测法与双阈值法相结合,提出了一种基于因果的自适应双阈值镜头边界检测算法.首先,利用相邻两帧之间的帧间差异值对突变和渐变进行预检;然后,加入渐变检测容忍度、边缘和非相邻帧间差异值等信息,对初检结果进行复检,排除闪光灯、剧烈物体运动、淡入、淡出以及溶解等造成的误检和漏检,以提高整体检测效果.实验结果表明,与传统的双阈值镜头检测方法相比,本方法可获得更好的检测性能.

An Adaptive Double Threshold Shot Boundary Detection Method Based on Cause and Effect

Combined the cause and effect method with the double threshold method,an adaptive double threshold shot boundary detection method based on the cause and effect method is proposed.First,the frame difference of two adjacent frames is applied to perform the pre-detection of cut and gradual transition.Then,the information of tolerance,edge and non-adjacent frame difference is combined to confirm the pre-detected shot boundaries.The false and miss shot boundaries caused by flashlight,object motion,fade in,fade o...