基于可逆整数小波变换的图像无损压缩

Overview of Lossless Image Compression Based on Reversible Integer-to-Integer Wavelet Transform

基于可逆整数小波变换(RITIWT:ReversibleInteger-to-IntegerWaveletTransform)的图像无损压缩已经成为图像压缩领域的研究热点。在对相关文献进行综合分析的基础上,首先回顾了RITIWT发展历史中的几个有影响力的小波变换框架及其在无损压缩中的应用,然后对目前应用于图像无损压缩领域的几种重要的RITIWT方法进行了总结,论述了基于可逆整数小波变换的图像无损压缩方法需要解决的若干问题,最后对基于RITIWT的图像无损压缩问题研究提出了一些展望。

Lossless image compression(LLIC)based on Reversible Integer-to-Integer Wavelet Transform(RITIWT )has become very popular in the field of image compression.After reading many literatures,this paper attempts to make an overview of LLIC based on RITIWT.First,several RITIWT Frameworks and their applications on LLIC are reviewed,these Frameworks are of great influence on the history of the development of RITIWT and LLIC.Second,a summary of important RITIWTs is made,these RITIWTs are found in literature to be popularly used to implement LLIC.Third,several important problems ,which should be solved when implementing LLIC based on RITIWT ,are discussed.In the end,the future trend of LLIC based on RITIWT is pointed out ,though,in personal opinion.