| 遥感图像小波变换系数的统计分布 |
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| 引用本文： | 方志中[],罗建书[].遥感图像小波变换系数的统计分布[J].数学理论与应用,2007,27(1):30-33. |
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| 作者姓名： | 方志中[] 罗建书[] |
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| 作者单位： | 湖南工程职业技术学院 长沙410151(方志中)，国防科技大学理学院 长沙410073(罗建书) |
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| 摘 要： | 本文研究了遥感图像经张量积小波与非张量积多元小波变换后得到的小波系数的统计分布及其特性,得出了遥感图像经双正交9-7整数小波变换后的系数的每个高频子带在能量分布上近似关于原点对称,每个高上频子带都具有“非高斯”性,每层的三个高频子带分布相似,第一层的各子带的值在零点附近更为集中,所以在零点形成更陡更窄的“尖峰”的结论.
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| 关 键 词： | 小波 变换 图像 |
| 文章编号： | 24259698 |
| 修稿时间： | 06 10 2006 12:00AM |
Statistic Distribution of Wavelet Coefficient in Remote Sensing Image |
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| Fang Zhizhong ,Luo Jianshu.Statistic Distribution of Wavelet Coefficient in Remote Sensing Image[J].Mathematical Theory and Applications,2007,27(1):30-33. |
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| Authors: | Fang Zhizhong Luo Jianshu |
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| Institution: | 1.College of Hunan Engineering Professional Technology,Changsha,410151;2.College of Sciences, National University of Defense Technology,Changsha, 410073 |
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| Abstract: | This paper researches the statistic distribution of remote sensing image after tensor product wavelet and non-tensor product wavelet transform.The result is that after CDF9/7 wavelet transform,the energy of the high frequency band coefficients of remote sensing image are nearly symmetric about the zero point.Every high frequency band distribution is Guassian.The distribution of three high frequency band in each level is similar,and the energy the first level is more concentrated around zero,so we get sharp and narrow "peak" zround zero. |
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| Keywords: | statistic distribution wavelet |
| 本文献已被 CNKI 维普 等数据库收录！ |
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