A New Anisotropic Diffusion Method for SAR Speckle Reduction

HUANG Qian; WANG Yan-fei; ZHANG Bing-chen; MIAO Hui

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A New Anisotropic Diffusion Method for SAR Speckle Reduction

更新时间：2025-07-16

- A New Anisotropic Diffusion Method for SAR Speckle Reduction
- Acta Electronica Sinica Vol. 34, Issue 9, Pages: 1553-1557(2006)
- 作者机构：
  
  1. 中国科学院电子学研究所,北京,100080
  2. 中国科学院研究生院,北京,100039
  3. 中国科学院电子学研究所北京,100080
  4. 中国科学院研究生院北京,100039
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN957
- Published：2006
- 稿件说明：
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HUANG Qian, WANG Yan-fei, ZHANG Bing-chen, et al. A New Anisotropic Diffusion Method for SAR Speckle Reduction[J]. Acta Electronica Sinica, 2006, 34(9): 1553-1557.
DOI：

HUANG Qian, WANG Yan-fei, ZHANG Bing-chen, et al. A New Anisotropic Diffusion Method for SAR Speckle Reduction[J]. Acta Electronica Sinica, 2006, 34(9): 1553-1557. DOI：

摘要

该文提出了一种基于各向异性扩散偏微分方程以及鲁棒估计的合成孔径雷达(Synthetic Aperture Radar

SAR)图像的相干斑噪声的算法.该算法利用SAR图像局部特性和鲁棒估计

建立了一种新的扩散系数

对均匀区域进行各向同性扩散

对边缘细节区域进行各向异性扩散

不仅可以有效抑制SAR图像的相干斑噪声

较好地保持边缘细节

而且处理所得的图像结果有着良好的视觉效果.

Abstract

This paper proposes a new speckle reduction method based on anisotropic diffusion and robust statistics for SAR speckle reduction.With the local statistics values of SAR images and robust staticstics

the method establishes a new diffusion coefficient

which provides anisotropic diffusion in the heterogenous area and isotropic diffusion in the homogeneous area.

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