基于LS9/7小波的图像压缩算法研究  

The Research of Image Compression Algorithm Based on 9/7 Lifting Scheme Wavelet

作　　者：余平[1] 马小虎[1] 李建国[1] 

机构地区：[1]苏州大学计算机科学与技术学院,江苏苏州215006

出　　处：《微电子学与计算机》2008年第9期109-111,共3页Microelectronics & Computer

基　　金：江苏省自然科学基金项目(BK2007050)

摘　　要：提出了一种基于提升格式小波的SPIHT图像压缩算法,该算法采用LS9/7进行小波变换,然后采用SPI-HT算法对变换系数进行编码,可实现任意码率的压缩.该算法具有运算简单,编码速度快等优点.实验结果表明,设计的算法是一种有效的图像压缩算法,能实现图像的快速压缩编码,其图像编解码时间和重构图像质量均优于原算法.This paper proposes an algorithm of image compression based on the 9/ 7 lifting scheme wavelet transform,it uses the lifting scheme of Daubechies9/ 7,and codes the coefficient by SPIHT,and then compresses the data at any rate.This program has several dominant,such as simple algorithm and coding quickly.The result of experiment indicates that the program is a effective image compression,can code the image data quickly.The time of the coding and decoding is better than the other similar program,and it also has good recovery quality of image.

关 键 词：提升小波变换 SPIHT 图像压缩 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]