| 一种改进的SAR影像斑点噪声抑制方法 |
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| 引用本文： | 蔡志刚.一种改进的SAR影像斑点噪声抑制方法[J].测绘软科学研究,2008(1):73-76. |
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| 作者姓名： | 蔡志刚 |
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| 作者单位： | 浙江省第一测绘院,浙江杭州310012 |
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| 摘 要： | 合成孔径雷达（SAR）影像的应用越来越广泛，但斑点噪声很大程度上影响了SAR的应用。本文首先研究了常用斑点噪声滤波方法，在此基础上，将中值滤波与常用的Lee，Frost，Kuan滤波结合。实验结果表明，该方法在斑点噪声抑制及边缘保持上明显优于传统的滤波方法。
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| 关 键 词： | SAR影像 斑点噪声 中值滤波 Lee滤波 Frost滤波 Kuan滤波 |
An Improved Method of Reducing Speckle Noise in SAR Image |
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| CAI Zhi-gang.An Improved Method of Reducing Speckle Noise in SAR Image[J].Research on Sofi Science of Surveying and Mapping,2008(1):73-76. |
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| Authors: | CAI Zhi-gang |
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| Institution: | CAI Zhi-gang (The First Surveying and Mapping Institute of Zhejiang Province, Hangzhou 310012, China) |
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| Abstract: | The imageries of Synthetic Aperture Radar （SAR） are used increasingly, but the application of SAR is obstructed by speckle noise to a large extend. This paper firstly studied the common speckle noise filters. Then the median filter was combined into the common filters, such as Lee, Frost, Kuan filter. The result showed that the improved algorithms can filter the speckle noise in SAR image more efficiently, and have much stronger ability to preserve edge than the traditional filter methods. |
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| Keywords: | synthetic aperture radar （SAR）image speckle noise median filter Lee filter Frost filter Kuan filter |
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