基于OLI遥感数据的遥感异常信息提取方法

摘要

针对遥感异常信息提取的难题引入独立式分析法,以青海都兰县铜及多金属矿为例,采用独立成分分析法对研究区做蚀变遥感异常信息提取,提取结果与主成分分析进行对比研究.据相关地质背景及野外实地查证,结果表明,独立成分分析提取结果优于主成分分析,独立成分分析法在提取遥感异常方面具有良好的应用前景,在地质找矿领域具有一定的推广价值.%In view of the problem of remote sensing anomaly information extraction,the method of independent component analysis is introduced.Taking Qinghai Dulan County copper and polymetallic deposits as example,remote sensing anomaly information of the study area was extracted through independent component analysis,compared those result with principal component analysis,and according to the relevant geological background and on field verification,the results show that independent component analysis is better than the principal component analysis.The independent component analysis method has good prospects in terms of the extraction of remote sensing anomalies,and has some promotional value in the field of geological prospecting.