一种基于图像边缘特征的SAR斑点滤波算法A new SAR image filter method based on edge detection
曹云刚,严丽娟,郑泽忠
摘要(Abstract)：
合成孔径雷达图像上的斑点噪声会阻碍图像的校准、检验、解译和应用,因此斑点噪声的去除是雷达图像处理的一个重要环节。通常的去噪方法在抑制噪声的同时也使得图像的边缘模糊,细节特征损失。理论和实践表明去除图像的斑点噪声和保持图像的边缘信息是无法同步实现的。为了在去除噪声和保持边缘特征之间进行折衷,本文基于MROA边缘检测算法以及均值滤波算法,提出了一种基于图像边缘特征的斑点噪声滤波算法。实验结果表明该算法能够在平滑图像的同时有效保持边缘特征信息。
关键词(KeyWords)： 合成孔径雷达;斑点噪声;边缘检测;滤波
基金项目(Foundation): 成都理工大学地质灾害防治与地质环境保护国家重点实验室开放基金项目(GZ2006-09)
作者(Author): 曹云刚,严丽娟,郑泽忠
DOI: 10.16251/j.cnki.1009-2307.2010.03.041
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