提出了一种利用MPEG - 7段描述工具对视频层次化结构模型进行描述的方法，并给出了相应的DDL描述。
In this paper we first propose a method to describe the hierarchy structure model of video with the MPEG-7 segment description tools, and present the DDL description.
最后，结合以上新方法，提出了一种基于MPEG - 7视频语义内容的层次化描述方案。
Finally, according to the new method, we propose a hierarchical video content description scheme under the international standard MPEG-7.
可伸缩性视频转换编码算法是大型分层视频组播系统层次化代理自适应机制的核心技术。
Scalable video transcoding is the key technology of a adaptive mechanism for hierarchical agents in a large-scale layered video multicast.
视频结构化的目的是把视频分为镜头、场景和序列等不同层次的逻辑单元，以便于在不同结构层次上对视频进行检索和浏览。
The purpose of the structure of video is to turn video into different hierarchical logic clips of shot, scene and series.
其次，分析了视频数据的特点和视频数据处理的层次化结构，并介绍了将视频转化为连续图像帧序列的方法。
And then, the characteristic of video data and the model structure of video analysis are presented. It is explained how to get the seriate image frame sequence from the video.
首先对视频进行了层次化的结构划分，从视频检索的查询粒度角度分析了以事件作为检索单元的必要性；
Firstly, we processed hierarchy structure partition to the video, and analyzed the necessity of events as the retrieval units from the point of rogatory granularity in video retrieval;
首先对视频进行了层次化的结构划分，从视频检索的查询粒度角度分析了以事件作为检索单元的必要性；
Firstly, we processed hierarchy structure partition to the video, and analyzed the necessity of events as the retrieval units from the point of rogatory granularity in video retrieval;
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