MPEG-21中的数字项适配技术研究  

Research on Digital Item Adaptation Technology in MPEG-21

作　　者：单列[1] 刘政凯[1] 

机构地区：[1]中国科学技术大学电子工程和信息科学系,安徽合肥230027

出　　处：《小型微型计算机系统》2009年第9期1860-1863,共4页Journal of Chinese Computer Systems

摘　　要：数字项适配是MPEG-21标准中一项非常重要的关键技术.本文研究MPEG-21中的数字项适配技术以及媒体独立格式的资源适配机制,实现一套基于MPEG-21DIA的图像适配系统,提供了数字项解析、适配决策形成以及资源适配等功能.并在此基础之上试验了新的基于感兴趣区域的适配方法.试验结果表明该系统是完整和有效的,采用的新的适配方法是新颖的.Digital item adaptation is a key technology in MPEG-21 standard. In this paper, we researched on digital item adaptation technology and format-independent resource adaptation mechanism in MPEG-21. An integrated image adaptation system was implemented and functions such as DI parser, adaptation decision generation, resource adaptation were provided. And we attempted new adaptation technology based on Region-of-Interest in our system. The experiment result indicates that our system is integrated and effective, and the new adaptation technology is innovative and efficient.

关 键 词：MPEG-21 数字项适配 适配系统 感兴趣区域 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]