| 一种利用级联滤波和松弛法的SAR图像配准方法 |
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| 引用本文： | 岳春宇,江万寿.一种利用级联滤波和松弛法的SAR图像配准方法[J].武汉大学学报(信息科学版),2012,37(1):43-45,62,129. |
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| 作者姓名： | 岳春宇 江万寿 |
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| 作者单位： | 武汉大学测绘遥感信息工程国家重点实验室,武汉市珞喻路129号,430079 |
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| 基金项目： | 国家自然科学基金资助项目，国家973计划资助项目 |
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| 摘 要： | 提出了一种利用级联滤波和松弛法的SAR图像配准方法。首先利用基于Beltrami流的偏微分方程与增强Lee滤波的级联滤波算法去除SAR图像噪声,然后对滤波后的参考图像提取边缘,对边缘特征点采用松弛法特征匹配,同时应用金字塔分级匹配策略由粗到精增加匹配的正确性。实验证明,本方法具有较高的配准精度。
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| 关 键 词： | SAR 级联滤波 松弛法 配准 |
Registration Method for SAR Image Based on Cascade Filter and Relaxation Optimization Algorithm |
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| YUE Chunyu,JIANG Wanshou.Registration Method for SAR Image Based on Cascade Filter and Relaxation Optimization Algorithm[J].Geomatics and Information Science of Wuhan University,2012,37(1):43-45,62,129. |
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| Authors: | YUE Chunyu JIANG Wanshou |
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| Institution: | 1(1 State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing, Wuhan University,129 Luoyu Road,Wuhan 430079,China) |
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| Abstract: | A registration method for SAR image based on cascade filter and relaxation optimization algorithm is proposed in this paper.Firstly,the cascade filter method combining partial differential equation(PDE) and enhanced Lee filter is introduced for SAR image speckle reduction.Then edge extraction is done in the filter result of object image.Every feature point of the edges is matched by the relaxation optimization algorithm,a pyramid matching strategy is employed for the accuracy simultaneously.The experiments show that the method can reach a good registration result. |
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| Keywords: | SAR cascade filter relaxation optimization algorithm registration |
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