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The Extraction of Alteration Anomalies from ASTER Data Based on Principal Component Analysis and Fractal Model

doi:10.6046/gtzyyg.2011.02.14

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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.

Keywords Mid-northern Qinghai-Tibet plateau Geomorphic deformation Remote sensing Ecological geology

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	TP 79:P 614

Issue Date: 17 June 2011

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	SUN Yan-gui
	YAO An-ping
	JU Sheng-cheng
	WANG-Dong-qing
	ZHANG-Kun

Cite this article:

SUN Yan-gui,YAO An-ping,JU Sheng-cheng, et al.
The Extraction of Alteration Anomalies from ASTER Data Based on Principal Component Analysis and Fractal Model[J]. REMOTE SENSING FOR LAND & RESOURCES, 2011, 23(2): 75-80.

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https://www.gtzyyg.com/EN/10.6046/gtzyyg.2011.02.14 OR https://www.gtzyyg.com/EN/Y2011/V23/I2/75

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