14 November 2007 Mineral mapping based on independent component analysis for spaceborne hyperspectral data
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Proceedings Volume 6790, MIPPR 2007: Remote Sensing and GIS Data Processing and Applications; and Innovative Multispectral Technology and Applications; 679023 (2007); doi: 10.1117/12.750268
Event: International Symposium on Multispectral Image Processing and Pattern Recognition, 2007, Wuhan, China
Abstract
Independent component analysis (ICA) model is proposed to extract alteration minerals using spaceborne hyperspectral data, because the result of present methods for alteration minerals identification are affected easily by the factors including excursion and variation of spectral signatures, interference of environment conditions and insufficient spectral library. In our work, the proposed method can realize extraction of alteration minerals under condition that the prior information of mineral spectra is unknown and the background model is not built. Therefore, this method is successfully applied to spaceborne Hyperion data at Qulong district of Tibet, and the application result in our work is approximately in accord with the geological map. Four kinds of minerals have been identified, which include kaolinite, chlorite, rich-aluminium sericite, and poor-aluminium sericite. And then the result that is obtained by ICA model can illuminate the validity and practicability of the proposed method and can provide some useful information and direction for the prognostication of mineral resource.
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Na Li, Huijie Zhao, Guorui Jia, Chao Dong, Runsheng Wang, Bokun Yan, "Mineral mapping based on independent component analysis for spaceborne hyperspectral data", Proc. SPIE 6790, MIPPR 2007: Remote Sensing and GIS Data Processing and Applications; and Innovative Multispectral Technology and Applications, 679023 (14 November 2007); doi: 10.1117/12.750268; https://doi.org/10.1117/12.750268
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KEYWORDS
Minerals

Independent component analysis

Associative arrays

Remote sensing

Mining

Atmospheric corrections

Data modeling

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