| 空间U统计量法在遥感蚀变信息提取中的应用研究 |
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| 引用本文： | 胡波,朱谷昌,张远飞,肖燃.空间U统计量法在遥感蚀变信息提取中的应用研究[J].国土资源遥感,2011(3):71-76. |
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| 作者姓名： | 胡波 朱谷昌 张远飞 肖燃 |
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| 作者单位： | 中南大学;有色金属矿产地质调查中心;江西应用工程职业学院; |
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| 摘 要： | 鉴于传统蚀变异常信息提取方法的局限性,试图在二维光谱特征空间(即散点图)中研究遥感蚀变信息的提取方法.在二维散点图中,两个波段灰度值的联合分布体现了各向异性的特点,聚类常呈类似椭圆形分布.对散点图中点的频数使用空间U统计量法逐个获得地物聚类的椭圆参数,将每个椭圆内的点映射到遥感图像上,经过目视解译,最终获得蚀变异常信息...
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| 关 键 词： | 蚀变异常信息提取 U统计量法 聚类各向异性 二维散点图 异常聚类 |
The Application of Spatial U-static Method to the Extraction of Alteration Anomalies |
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| HU Bo,ZHU Gu-chang,ZHANG Yuan-fei,XIAO Ran.The Application of Spatial U-static Method to the Extraction of Alteration Anomalies[J].Remote Sensing for Land & Resources,2011(3):71-76. |
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| Authors: | HU Bo ZHU Gu-chang ZHANG Yuan-fei XIAO Ran |
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| Institution: | HU Bo1,2,ZHU Gu-chang1,ZHANG Yuan-fei2,XIAO Ran3(1.Central South University,Changsha 410083,China,2.China Non-ferrous Metals Resource Geological Survey,Beijing 100012,3.Jiangxi Application Engineering Vocational College,Pingxiang 337000,China) |
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| Abstract: | The authors tried to extract alteration anomalies in spectral characteristic space(scatter plot) in view of the limitation of the traditional methods.The scatter plot takes on an anisotropic feature in associated distribution of RS data's grey scale.The distribution is usually combined by oval clusters.Parameters of oval clusters are acquired sequentially by applying U-Statistic method in the frequency of the scatter plot.Through mapping the points inside the oval into RS image and interpreting visually,the... |
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| Keywords: | Alteration information extraction U-static method Anisotropy of cluster 2D scatter plot Anomaly cluster |
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