Near-lossless image compression based on integer wavelet transforms

被引：0
|
作者：
Moon, YS [1 ]
Tian, JW [1 ]
机构：
[1] Chinese Univ Hong Kong, Dept Comp Sci & Engn, Shatin, Hong Kong, Peoples R China
来源：
IMAGE COMPRESSION AND ENCRYPTION TECHNOLOGIES | 2001年 / 4551卷
关键词：
image compression; integer wavelet transform; Lift scheme; near-lossless compression; remote sensing image;
D O I：
10.1117/12.442891
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This paper discusses the constructing method of a general integer wavelet transform algorithm. Coupling such an algorithm with subblock differential pulse code modulation (DPCM), an encoding scheme for near-lossless image compression is obtained for remote sensing images. This method possesses the following features: (1) real-time processing is possible; (2) hardware implementation is easy; (3) the algorithm is of parallel structure; (4) only addition, subtraction and bit-shift are involved in the processing. Experiments illustrate that our algorithm is an effective encoding scheme to compress remote sensing images.
引用
收藏
页码：21 / 26
页数：6
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