| 基于提升小波技术的阈值量化图像压缩方案 |
| |
| 引用本文： | 张小红,朱媛媛,崔智勇.基于提升小波技术的阈值量化图像压缩方案[J].系统仿真学报,2011,23(11):2434-2438. |
| |
| 作者姓名： | 张小红 朱媛媛 崔智勇 |
| |
| 作者单位： | 江西理工大学信息工程学院,赣州,341000 |
| |
| 基金项目： | 国家自然科学基金(11062002); 江西省自然科学基金(2010GZS0083); 江西省教育厅科技项目(GJJ11470) |
| |
| 摘 要： | 结合多级树集合分裂算法（SPIHT）能产生完全的嵌入式码流的特性，设计了一种新的阈值量化方莹的彩色图像压缩算法。通过建立彩色空间的可逆分量变换，减小三含彩色分量之闽的相关性，并对变换后的三分量进行提升的整教小波变换。将定义的自然数的平方作为门限值，完成对三分量小波系数矩庠的量化和联合编码。实验结果表明，本方案与传统量化方案下的SPIHT算法相比，大多数重要系数的编码长度至少减少1个比特数，当比特率非常低对，压缩效果更明显。
|
| 关 键 词： | 图像压缩 提升小波 整数小波变换 量化门限 嵌入式零树编码 |
Image Compression Quantification Scheme Based on Lifting Wavelet Technology |
| |
| ZHANG Xiao-hong,ZHU Yuan-yuan,CUI Zhi-yong.Image Compression Quantification Scheme Based on Lifting Wavelet Technology[J].Journal of System Simulation,2011,23(11):2434-2438. |
| |
| Authors: | ZHANG Xiao-hong ZHU Yuan-yuan CUI Zhi-yong |
| |
| Institution: | ZHANG Xiao-hong,ZHU Yuan-yuan,CUI Zhi-yong(School of Information Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China) |
| |
| Abstract: | Combining with the characteristic of set partitioning in hierarchical trees(SPIHT),which could produce completely embedded code stream,a novel quantification method for color image compression was designed.By establishing the reversible component transformation(RCT) in color space,the three-component was transformed with less relevance,and then after the lifting integer wavelet transformation,the processed components were still integers.Based on the theory of SPIHT,the proposed method set the square of defi... |
| |
| Keywords: | image compression lifting wavelet integer wavelet transform quantization threshold embedded zerotree wavelet |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
