| 小波变换编码及其在军事图像上的应用 |
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| 引用本文： | 张雷,陈向东,陈永翾.小波变换编码及其在军事图像上的应用[J].电光与控制,2007,14(4):124-127. |
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| 作者姓名： | 张雷 陈向东 陈永翾 |
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| 作者单位： | 西南交通大学信息科学与技术学院,成都,610031 |
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| 基金项目： | 国家自然科学基金
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西南交通大学交通运输工程研究生创新实践基地项目 |
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| 摘 要： | 提出了一种军事图像压缩的新方法,在嵌入式零树小波(EZW)算法基础上引入提升方案和整数变换以降低算法复杂度,在编码前对系数按重要性进行排序并对低频区域的系数的符号进行改变.实验结果表明,将该算法用于军事图像压缩无论在主观效果还是在峰值信噪比方面都取得了满意的效果.
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| 关 键 词： | 嵌入式零树小波 小波变换 图像压缩 编码 军事侦察 |
| 文章编号： | 1671-637X（2007）04-0124-04 |
| 修稿时间： | 2006-02-14 |
Wavelet transform coding and its application in military image |
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| ZHANG Lei,CHEN Xiang-dong,CHEN Yong-xuan.Wavelet transform coding and its application in military image[J].Electronics Optics & Control,2007,14(4):124-127. |
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| Authors: | ZHANG Lei CHEN Xiang-dong CHEN Yong-xuan |
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| Abstract: | A new method for military image compression is put forward.Based on Embedded Zerotree Wavelet(EZW) algorithm,lifting scheme and integer transform are introduced to reduce the complexity.Before coding,the coefficients are queued according to their importance and the sign of coefficients at the low-frequency region are changed.This algorithm is used in martial image compression and the experiment shows that we have obtained good results in both subjective effect and peak Signal-Noise Ratio(SNR). |
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| Keywords: | Embedded Zerotree Wavelet(EZW) wavelet transform image compression coding military reconnaissance |
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