组合分析蚀变信息提取方法研究  

Research of Combinatory Analysis Method in Altered Information Extraction

作　　者：李淼淼 邢立新[1] 潘军[1] 乔振民[1] 王红红[1] 

机构地区：[1]吉林大学地球探测科学与技术学院,吉林长春130026

出　　处：《遥感技术与应用》2011年第3期303-308,共6页Remote Sensing Technology and Application

基　　金：中国地质调查局资助项目(1212010761502)

摘　　要：目前主成分分析法、比值法、光谱角制图法等已广泛应用于遥感矿化蚀变信息提取中,且取得了很好的效果。根据研究区遥感数据特点,采用比值与主成分组合分析的方法,结合FLAASH大气校正、中值滤波以及彩色密度分割等图像处理方法,对新疆且末地区ASTER数据进行蚀变信息提取。经USGS标准矿物波谱库中典型矿物光谱的验证,组合分析方法能够去除数据冗余和噪声,有利于各类蚀变信息的提取。Currently,the principal component analysis,the ratio analysis,the spectral angle mapping method has been widely applied in mineralized alteration information extraction,and have got good results.According to the remote sensing data characteristics of the study area,this paper use the combinatory analysis of ratio and principal component,combining image processing method such as FLAASH atmosphere correction,median filtering and color density divide,to extract the mineralized alteration information of Qiemo region.The typical mineral spectrum of the USGS standard mineral spectrum library verificated that the combinatory analysis method can remove the data redundancy and noise,be convenien to obtain the alteration information.

关 键 词：蚀变信息 主成分分析 比值分析 组合分析 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]