MPEG-2传输流中I-帧的统计分析  

Statistic Analysis of I - frame in MPEG - 2 TS Stream

作　　者：周兵[1] 张兆东[1] 郭健[1] 

机构地区：[1]解放军理工大学,江苏南京210007

出　　处：《中国有线电视》2007年第19期1806-1809,共4页China Digital Cable TV

摘　　要：I-帧为MPEG定义的一种图像格式，它的应用场合比较广泛，比如基于视频内容检索的多媒体系统、视频节目的特技播放，给出一种对MPEG-2传输流中I-帧分布的统计方法，对3段数字电视节目进行实验，得到节目流中I-帧的分布情况，包括I-帧的大小、间隔等，并且分析了TS流中I-帧分布的特点。I -frame is an image type which is defined in MPEG. It is used in many occasions, such as multi-media system based on video searching, playing video in special way. In this paper, a method is given to count the distribution of I - frame in MPEG - 2 TS stream. Then a test on three segments digital TV programs is made to get the distribution of ! - frame in program stream, including the size of I - frame and the intervals. Finally the characteristic of the I - frame distribution is discussed.

关 键 词：MPEG-2 传输流 I-帧 分布 

分 类 号：TN919.81[电子电信—通信与信息系统]