| 全极化干涉SAR散射功率的非监督分类方法 |
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| 引用本文： | 冯茜,杨磊,聂水湘.全极化干涉SAR散射功率的非监督分类方法[J].测绘科学,2010,35(4):34-37. |
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| 作者姓名： | 冯茜 杨磊 聂水湘 |
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| 作者单位： | 空军驻郑州地区军事代表,郑州,450002;解放军空军94371部队,郑州,450002 |
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| 摘 要： | 本文首先通过分析全极化干涉SAR条件下的散射机理,分别计算出来自地表层和植被层的散射功率,并进一步通过确定像素在功率平面上的位置来区分目标,实现对地物的分类。在此基础上,为了充分利用H/α非监督分类结果的有用信息,对基于H/α分类和基于散射功率分类得到的分类集进行组合,并通过复Wishart迭代分类方法进行聚类,得到最终的SAR图像分类结果。本文详细阐述了该方法的原理和实施步骤,并对SIR-C/X-SAR的L波段实际全极化干涉数据进行分类实验,可知该算法无论在分类精确度上还是在迭代速度上,都有较高的性能。
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| 关 键 词： | 极化干涉SAR 功率 散射 迭代 非监督分类 |
Scattering power-based unsupervised classification of fully polarimetric interferometric SAR image |
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| FENG Qian,YANG Lei,NEI Shui-xiang.Scattering power-based unsupervised classification of fully polarimetric interferometric SAR image[J].Science of Surveying and Mapping,2010,35(4):34-37. |
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| Authors: | FENG Qian YANG Lei NEI Shui-xiang |
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| Abstract: | In this paper,the scattering mechanism in the condition of polarimetric interferometric SAR was firstly analyzed,and then the scattering power from ground layer and vegetation layer were calculated respectively,finally the classification was realized by judging the position of every pixel in power plane.For utilizing the useful information of Lee's classification,two classified sets of Lee's and our algorithm were combined,and then the classified sets were aggregated to get the last results by the complex W... |
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| Keywords: | polarimetic interferometric SAR power scatter iteration unsupervised classification |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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