基于小波的图像可分级编码研究  

Research on Scalable Image Coding Based on Wavelet

作　　者：王相海[1] 

机构地区：[1]辽宁师范大学计算机与信息技术学院

出　　处：《小型微型计算机系统》2003年第9期1677-1681,共5页Journal of Chinese Computer Systems

基　　金：南京大学计算机软件新技术国家重点实验室开放课题基金资助;大连市科技基金资助项目

摘　　要：图像渐进传输、多质量服务以及图像数据库浏览等多分辨率环境下的多媒体应用导致了图像可分级编码思想的产生 .本文首先对图像可分级编码的概念进行了解释 ,然后以图像可分级编码的种类为线索 ,对基于小波的图像可分级编码技术的发展和常用技术进行了综述 ,特别对 MPEG- 4和 JPEG- 2 0 0 0中图像的可分级编码技术进行了讨论 。The multimedia applications in a multiresolution environment, such as progressive transmission of image , image database browsing, etc., arise scalable image coding algorithm.This paper first explains the concepts of all kinds of image scalable image coding, and gives an overview of major methods already used or under investigation for scalable still image coding based on wavelet along with the kinds of scalable image coding. There are some scalable image coding techniques in MPEG-4 and JPEG-2000 among them. In addition, the future development of still image coding is also analyzed and conjectured in the paper.

关 键 词：零树小波 空间可分级 数率可分级 JPEG-2000 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]