多分辨率分析在单视SAR图像的Speckle滤波器中的应用  

Application of Multiresolution Analysis in Single - Look SAR Image Speckle Filter

作　　者：刘可[1] 孙洪[1] 

机构地区：[1]华中科技大学,武汉430074

出　　处：《国外电子测量技术》2001年第3期40-42,共3页Foreign Electronic Measurement Technology

摘　　要：合成孔径雷达图像的去噪算法大致分为两类:基于概率统计特性和基于小波变换的算法。本文实现的空——幅域上的多分辨率分析算法。该算法用信号统计特性上的多分辨率分析代替了直接对信号进行的多分辨率分析。实验显示空——幅域上的多分辨率分析算法可以实现对speckle噪声图像边界的有效判断。De-noising algorithms of SAR images basically divide into two types: statistical algorithm and wavelet-based one. In this paper, radiometric multiresolution analysis (RMA) is used to deal with speckle noise in single-looking SAR images. RMA means that multiresolution analysis is used on statistical properties of image signal instead of signal itself. It is shown that the RMA is an efficient algorithm for the edge-judging in speckle images.

关 键 词：合成孔径雷达 多分辨率分析 斑点噪声 滤波器 图像 

分 类 号：TN957.52[电子电信—信号与信息处理]