MPEG—4的视频“档次”及其“等级”技术

Profile"and "Level"in MPEG-4

首先阐述了ＭＰＥＧ－４版本１的“档次”和“等级”概念，然后详细叙述了各种视频对象类型和工具、各种视频的“档次”定义以及每个“档次”上的“等级”划分技术，最后简要介绍了ＭＰＥＧ－４版本１可能的应用领域。

This paper describes the concepts of 'profile' and 'level' defined in MPEG--4 Version1.0, the types andtools of video objects, and the definitions of video profile and level in detail. Some possible application areasof MPEG--4Version 1.0 are introduced in brief.