国土资源遥感Issue(2)：75-80,6.
基于主成分分析和分形模型的ASTER蚀变异常信息提取
The Extraction of Alteration Anomalies from ASTER Data Based on Principal Component Analysis and Fractal Model
摘要
Abstract
To some extent, remote sensing alteration anomalies can reflect the alteration of wall rocks. The characteristics of absorption and reflection in ASTER can be obtained by analyzing the spectra of altered minerals.Some bands reflecting obvious characteristics can be calculated on the basis of principal component analysis, with the choice of the principal component of alteration information in accordance with the relationship between the spectra and the eigenvector. The thresholds of the anomalous gray are computed on the fractal model, and the extracted anomalies are well coincident with the known ore deposits.关键词
主成分分析/分形模型/ASTER/蚀变异常提取Key words
Principal component analysis/ Fractal model/ ASTER/ Alteration anomaly extraction分类
信息技术与安全科学引用本文复制引用
刁海,张达,狄永军,王振,王浩然,熊光强..基于主成分分析和分形模型的ASTER蚀变异常信息提取[J].国土资源遥感,2011,(2):75-80,6.基金项目
中国地质调查局地质调查项目"中蒙边境成矿带地质-地球物理综合剖面研究"(编号:1212010070505). （编号:1212010070505）
