|
|||||
|
|
| 一类整数小波变换的优化设计及其图像编码应用 | |
| 引用本文： | 高成秀,刘在德,王智平.一类整数小波变换的优化设计及其图像编码应用[J].兰州理工大学学报,2008,34(6). |
| 作者姓名： | 高成秀 刘在德 王智平 |
| 作者单位： | 1. 兰州工业高等专科学校,机械工程系,甘肃,兰州,730050 2. 常熟理工学院,计算机科学与工程学院,江苏,常熟,215500 3. 兰州理工大学,材料科学与工程学院,甘肃,兰州,730050 |
| 基金项目： | 江苏省高校自然科学基础研究项目 |
| 摘 要： | 整数小波变换已在嵌入式图像编码领域取得了极大的成功,一种实现整数小波变换的方法是提升.给出一种基于提升的参数化构造法,构造一类新的整数小波变换,它们仅用一个自由参数表示.随意调整该参数,就可构造出不同的整数小波变换.作为构造示例,构造了5种整数小波变换,它们的提升滤波器系数全为二进制分数(形如k/2n,k,n∈Z的数).实验表明,其中的两种变换与当前几种广为应用的整数小波变换相比,具有优异的有损和无损图像压缩性能. |
| 关 键 词： | 嵌入式图像编码 整数小波变换 提升 压缩性能 有损编码 无损编码 |
Optimization design of a class of integer wavelet transforms and their application to image coding |
|
| GAO Cheng-xiu,LIU Zai-de,WANG Zhi-ping.Optimization design of a class of integer wavelet transforms and their application to image coding[J].Journal of Lanzhou University of Technology,2008,34(6). | |
| Authors: | GAO Cheng-xiu LIU Zai-de WANG Zhi-ping |
| Institution: | GAO Cheng-xiu1,LIU Zai-de2,WANG Zhi-ping3(1.Department of Mechanical Engineering,Lanzhou Polytechnic College,Lanzhou 730050,China,2.School of Computer Science , Engineering,Changshu Institute of Technology,Changshu 215500,3.College of Materials Science , Engineering,Lanzhou Univ.of Tech.,China) |
| Abstract: | The integer wavelet transform(IWT) has proved to be particularly successful in the area of embedded image coding.One of the possible methods to realize the IWT is the lifting scheme.A parameterization technique of IWT was presented based on the lifting scheme and a new class of IWT was parameterized by using one free parameter only.Different IWT could easily be obtained by adjusting the free parameter.As an illustration of this method,five IWTs with their lifting filters all having binary coefficients(numbe... |
| Keywords: | embedded image coding integer wavelet transform lifting compression performance lossy coding lossless coding |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |