数字视频精细可扩展性编码的研究  

Research on Fine Granular Scalable Coding

作　　者：瞿晓[1] 陈伟 

机构地区：[1]浙江科技学院自动化与电气工程学院,杭州310043 [2]浙江省科技咨询中心,杭州310012

出　　处：《科技通报》2008年第6期877-881,共5页Bulletin of Science and Technology

基　　金：浙江省教育厅科研项目(编号:20061478)

摘　　要：随着Internet和无线通信的发展,大量视频数据需要通过网络传输,使得视频压缩编码的目标从传统的面向存储转变为面向传输。然而面对网络带宽变化和传输中的包错误等两个主要问题,压缩编码需要有自适应能力。提供完全可伸缩的增强层码流,它可以在任意地点截断,具有很强的网络带宽适应能力。本文主要对精细可伸缩编码(fine granular scalable coding,FGS)进行了分析、对比、研究,实验表明FGS具有编码效率较高,图像质量好,自适应能力强的优点。With the development of Internet and wireless network,a great deal of video data need to be transmitted over network.It make the goal of video and image coding changed .Traditional video coding is for storage.The major task of the video coding techniques for storage-based applications is how to improve the coding efficiency.However,transmitting digital video over network had to deal with two major problem：bandwidth variations and tolerate rtansmitted errors besides the requirements in highet coding efficiency . This paper focus on the research on Fine Granular Scalable Coding. Experment results show that FGS increased the compression ratio and raised the compression efficiency.

关 键 词：视频编码 可扩展编码 精细可伸缩编码 

分 类 号：TN919.31[电子电信—通信与信息系统]