关键词: 关键帧提取,相关性计算,视频

Abstract: The keyframe extraction is a visual summary method．It enhances the accessibility to the visual content．Traditional methods extract keyframes through clustering．These methods don’t provide reliable descriptions of keyframe representative．This paper proposed a novel keyframe extraction method through a graph model representing the candidate keyframes and the correlations between them．The representative of candidate keyframe was calculated through propagating grade between correlated candidate keyframes iteratively．To support the calculation of the representative,the paper introduced a correlation calculation method according to how well the maximally stable colour regions of two frames match to each other．The experiments were conducted on several test videos and the results validated our keyframe extraction method.

Key words: Keyframe extraction,Correlation calculation,Video