基于MPEG-7的多媒体数据描述扩展  

A Novel Method to Describe Multimedia Data Based on MPEG-7

作　　者：闫剑锋[1] 徐娟[1] 李战怀[1] 

机构地区：[1]西北工业大学计算机科学与工程系,西安710072

出　　处：《计算机工程与应用》2004年第2期50-53,71,共5页Computer Engineering and Applications

基　　金：国家自然科学基金资助项目(编号:60073055;60373108)

摘　　要：多媒体信息系统首先需要对多媒体数据的内容给出尽量全面、详尽的表述,而目前存在的多媒体文档描述接口MPEG-7标准在信息描述能力上存在不足。针对这一问题,论文根据多媒体文档内容的抽象层次分类,提出了一个合理的层次化信息描述方法,并讨论了多媒体文档描述层次间的映射关系。The most important thing of multimedia information system is to provide overall and detailed description of the content of multimedia data.But currently,the description interface of multimedia document ,MPEG-7,has some short-age in providing the description of this information in different layers and granularities.In this paper,we locate the con-tent information of the multimedia documents into three proper layers and define MDU(Multimedia Document basic U-nit)to collect this information in different granularities.And then,we also discuss the relationships among MDUs.Combin-ing the definitions above,we can formalize the presentation of the multimedia documents.An example is provided to ex-plain how to use this presentation method,and we also compare this method with related works.

关 键 词：多媒体文档 多媒体信息系统 MPEG-7 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]