一种MPEG压缩域上的快速场景分割算法

An Fast Algorithm of Scene Change Detectionin MPEG Compressed Domain

本文提出了一种ＭＰＥＧ压缩域上的快速场景分割算法，该算法目前主要针对的是新闻节目。它采用了依次对ＭＰＥＧ码流中的Ⅰ帧间，然后Ｐ帧间，最后Ｂ帧间的场景分割进行定位的方法。在该算法的基础上可以快速地完成对ＭＰＥＧ码流的分割，并对每个场景提取Ⅰ帧作为关键帧，从而为新闻视频数据库的建立提供了基础。

In this paper a fast algorithm in MPEG domain is proposed,which is mainly used in NEWS program processing.It first determine the right scene change location between I frames,and then between P frames and B frames.Based on this algorithm,it is convenient to detect scene change quickly and extract a key frame for each scene to establish video database.