| 一种新的SAR图像相干斑抑制算法 |
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| 引用本文： | 张强,张毅. 一种新的SAR图像相干斑抑制算法[J]. 电子器件, 2010, 33(3): 336-339 |
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| 作者姓名： | 张强 张毅 |
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| 作者单位： | 1. 中国科学院电子学研究所,北京100190;中国科学院研究生院,北京100190
2. 中国科学院电子学研究所,北京,100190 |
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| 摘 要： | 针对经典局域统计自适应滤波器的窗口大小问题,提出了一种新的用于抑制合成孔径雷达图像相干斑噪声的滤波算法.基于SAR图像的统计特性,窗口大小根据区域特征自动调整,尽可能将窗口调整为包含同一均匀区域,从而在保持细节的同时尽最大可能地抑制斑点噪声.实验结果表明,本算法不仅有效抑制了SAR图像的相干斑,保持图像的边缘细节.而且有着良好的图像视觉效果.
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| 关 键 词： | 合成孔径雷达图像 相干斑 滤波 变差系数 |
A New Speckle Reduction Algorithm for SAR Imagery |
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| ZHANG Qiang,ZHANG Yi. A New Speckle Reduction Algorithm for SAR Imagery[J]. Journal of Electron Devices, 2010, 33(3): 336-339 |
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| Authors: | ZHANG Qiang ZHANG Yi |
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| Affiliation: | ZHANG Qiang1,2,ZHANG Yi11.Institute of Electronics,Chinese Academy of Sciences,Beijing 100190,China,2.Graduated University of Chinese Academy of Sciences |
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| Abstract: | A new adaptive windowing algorithm for speckle filtering of SAR imagery is proposed,to solve the dilemma of window size associated with the classical local statistics adaptive filter.Based on the statistical characteristics of SAR images,the window size is automatically adjusted according to regional characteristics to suppress speckle noise as much as possible while preserving fine details.As far as possible to adjust the window that contains the same homogeneous region.In our experiment,this new method is... |
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| Keywords: | SAR Image Speckle filter relative standard deviation |
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