| PolSAR图像的两级分块最优加权滤波方法 |
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| 引用本文： | 韩萍,晏珂,吴仁彪.PolSAR图像的两级分块最优加权滤波方法[J].系统工程与电子技术,2011,33(9):1983-1987. |
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| 作者姓名： | 韩萍 晏珂 吴仁彪 |
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| 作者单位： | 1. 中国民航大学智能信号与图像处理天津市重点实验室, 天津 300300
2. 中国民航江西空管分局, 江西 南昌 330114
3. 深圳大学ATR国防科技重点实验室智能信息处理研究室, 广东 深圳 518060 |
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| 基金项目： | 国家自然科学基金与中国民用航空局联合项目(60979002)资助课题 |
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| 摘 要： | 针对多极化合成孔径雷达（polarimetric synthetic aperture radar, PolSAR）图像的相干斑抑制问题,提出一种两级分块的最优加权滤波方法。该方法在分块加权法的块处理基础上,采用边缘检测模板对非同质类子块进行二次分类和处理,提高了滤波参数的估计精度。实验结果表明,该方法不仅保持了块处理简单、运算量小的优点,而且在斑点抑制和边缘保持方面更优于最优加权法和分块加权法。
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| 关 键 词： | 多极化合成孔径雷达 相干斑抑制 两级分块 边缘保持 |
Optimal weighting filtering based on two-stage blocking for PolSAR images |
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| HAN Ping,YAN Ke,WU Ren-biao.Optimal weighting filtering based on two-stage blocking for PolSAR images[J].System Engineering and Electronics,2011,33(9):1983-1987. |
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| Authors: | HAN Ping YAN Ke WU Ren-biao |
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| Institution: | 1. Tianjin Key Lab for Advanced Signal Processing, Civil Aviation University of China, Tianjin 300300, China;
2. Jiangxi Sub-bureau of Air Traffic Magement Bureau, Civil Aviation Administration of China, Nanchang 330114, China;
3. Intelligent Information Institute of ATR Lab, Shenzhen University, Shenzhen 518060, China |
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| Abstract: | A method of optimal weighting filtering based on two-stage blocking is proposed to solve the problem of speckle appearing in polarimetric synthetic aperture radar(PolSAR) images.On the basis of part weighting filtering,the method uses edge detecting template in each sub-image block to perform heterogeneous areas classification,so that more accurate filtering parameter estimation is achieved by calculating them with the classified area element values.Experimental results demonstrate that the proposed method ... |
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| Keywords: | polarimetric synthetic aperture radar(PolSAR) speckle suppression two-stage blocking edge preserving |
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