整数小波图像压缩算法性能研究  

Analysis of the image compression based on the integer wavelets

作　　者：邱金蕙[1] 

机构地区：[1]武汉大学电子信息学院,湖北武汉430079

出　　处：《华北电力大学学报（自然科学版）》2008年第1期108-112,共5页Journal of North China Electric Power University：Natural Science Edition

基　　金：国家自然科学基金资助项目(60472025);武器装备预研基金资助项目(51484020305JW1206)

摘　　要：提升格式是一种新的双正交小波的构造方法,为整数小波提供了更为广阔的应用空间,以其独特的结构,有效的减少了运行时间,是一种快速有效的小波实现方法。介绍了整数小波的构造,从传统的Mallat算法出发,引入提升格式构造新的小波。并且在现有小波的基础上,给出了利用提升格式增加小波函数消失矩,提高小波函数性能的方法。The lifting scheme is a new method to construct Bi orthogonal wavelets, The integer wavelets based on lifting is a fast and efficient method to realize wavelets, which provide a wider range of application and efficiently reduce the computing time with its particular frame. This paper aims at introducing the second generation wavelets, begins with traditional Mallat algorithms, illustrates the lifting scheme and brings out the detail steps in the construction of Bi orthogonal wavelets. This paper also analyzed the adaptive lifting scheme which increases the number of the vanishing moments of the Haar wavelet.

关 键 词：提升格式 整数小波 消失矩 

分 类 号：TN919[电子电信—通信与信息系统]