| 基于提升方案与SPIHT的无失真图像压缩 |
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| 引用本文： | 解成俊,顾海军,宋建中.基于提升方案与SPIHT的无失真图像压缩[J].光电工程,2002,29(4):61-63,67. |
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| 作者姓名： | 解成俊 顾海军 宋建中 |
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| 作者单位： | 1. 中国科学院长春光学精密机械与物理研究所,吉林,长春,130021;北华大学师范学院,吉林,吉林,132011
2. 中国科学院长春光学精密机械与物理研究所,吉林,长春,130021 |
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| 基金项目： | 中国科学院知识创新工程青年基金资助项目(Q01H01) |
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| 摘 要： | 基于提升方案的整数Deslauriers-Dubuc（6，2）可逆双正交小波变换，可由加法和移位完成，便于硬件实现。与SPIHT和熵编码结合可实现无失真图像压缩。与ARJ，JPEG，整数Haar变换结合DPCM以及分块DPCM中的无失真压缩方法相比，压缩比分别平均提高了50％，35％，20％，2％左右。
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| 关 键 词： | 提升方案 图像压缩 小波变换 图像编码 |
| 文章编号： | 1003-501X(2002)04-0061-03 |
| 收稿时间： | 2001/12/30 |
Undistorted image compression algorithm based on lifting scheme and SPIHT |
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| XIE Cheng-jun,GU Hai-jun,SONG Jian-zhong.Undistorted image compression algorithm based on lifting scheme and SPIHT[J].Opto-Electronic Engineering,2002,29(4):61-63,67. |
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| Authors: | XIE Cheng-jun GU Hai-jun SONG Jian-zhong |
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| Affiliation: | XIE Cheng-jun1,2,GU Hai-jun1,SONG Jian-zhong1 |
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| Abstract: | A integer Deslauriers-Dubuc (6,2) biorthogonal invertible wavelet transform based on the lifting scheme can be finished by addition and shift. This is suitable for implementation of hardware. Undistorted image compression can be carried out by SPIHT (Set Partitioning In Hierarchical Trees) with entropy coding. Compared with the undistorted compression algorithms for ARJ, JPEG (Joint Picture Expert Group) , integer Haar transform combined with DPCM(Differential Pulse Code Modulation)and subblock DPCM, the compression ratio has been improved for 50%, 35%, 20% and 2% or so, respectively. |
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| Keywords: | Lifting scheme Image compression Wavelet transform |
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