|
|||||
|
|
| 一种基于小波变换的图像压缩算法 | |
| 引用本文： | 张培珍,杨根源,周祖华,马良.一种基于小波变换的图像压缩算法[J].舰船电子工程,2008,28(11). |
| 作者姓名： | 张培珍 杨根源 周祖华 马良 |
| 作者单位： | 1. 海军航空工程学院研究生管理大队,烟台,264001 2. 海军航空工程学院指挥系,烟台,264001 3. 空军雷达学院预警探测指挥系,武汉,430019 |
| 摘 要： | 针对传统小波变换过程复杂的缺点和SPIHT算法编码过程重复运算、存储量大的问题.首先分析了小波基和小波分解层数的选取,然后提出了一种改进的SPIHT算法,该算法利用可变阈值对SPIHT算法中初始子带进行分类得到一种更有效的编码算法.仿真结果表明,该算法的压缩整体性能要好于SPIHT算法. |
| 关 键 词： | 小波变换 图像压缩 |
A Kind of Image Compression Algorithm Based on Wavelet Transform |
|
| Zhang Peizhen,Yang Genyuan,Zhou Zuhua,Ma Liang.A Kind of Image Compression Algorithm Based on Wavelet Transform[J].Ship Electronic Engineering,2008,28(11). | |
| Authors: | Zhang Peizhen Yang Genyuan Zhou Zuhua Ma Liang |
| Institution: | Zhang Peizhen1) Yang Genyuan2) Zhou Zuhua3) Ma Liang1) (Department of Graduate Management,NAEI1),Yantai 264001)(Department of Comm,,NAEI2),Yantai 264001) (Department of Early Warning , Detection Comm,,AFRA3),Wuhan 430019) |
| Abstract: | In view of the problems of complicated convolution process of wavelet transform,repeated calculations and a large of needed memories of SPIHT algorithm,Firstly,the wavelet and decomposition of wavelet was analyzed by this paper.Secondly,we present a more efficient implementation of the SPIHT algorithm by using variable thresholds to sort the initialization sub-bands.Finally,experimental results show that this algorithm is competitive to the SPIHT coding algorithm. |
| Keywords: | SPIHT |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |