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.
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, 23(2): 75-80.
DIAO Hai, ZHANG Da, DI Yong-Jun, WANG Zhen, WANG Hao-Ran, XIONG Guang-Qiang.
The Extraction of Alteration Anomalies from ASTER Data Based on Principal Component Analysis and Fractal Model. REMOTE SENSING FOR LAND & RESOURCES, 2011, 23(2): 75-80.