基于帧间似然比的关键帧提取算法

The Method of Key Frame Distilling Based on Similar Ratio Between Frames

借助基于内容分析的关键帧提取算法的基本思路,提出了一种基于帧间似然比的关键帧提取算法,算法利用Y、Cb、Cr 3个颜色分量的均值和方差作为图像帧的特征参数,有效地描述了帧间相似性,对镜头突变和渐变有较强的鲁棒性,实验表明该方法能较好地提取出视频序列的关键帧。

This paper puts forward a method of key frame distilling based on similar ratio between frames by dint of the thought of the method of key frame distilling based on content analyzing. The parameter in the method availability describe the similitude between frames and has good efficiency for the lens mutation and shadow. Experimental results demonstrate the good performance of the proposed algorithm.