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一种新的各向异性扩散SAR相干斑抑制算法 被引量:6

A New Anisotropic Diffusion Method for SAR Speckle Reduction
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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 ApertureRadar,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. 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.
出处 《电子学报》 EI CAS CSCD 北大核心 2006年第9期1553-1557,共5页 Acta Electronica Sinica
关键词 合成孔径雷达 相干斑 各向异性扩散 SAR speckle anisotropic diffusion
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参考文献11

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