Image and Signal Processing Methods

Mineral recognition mapping using measured spectra based on classification and regression tree

[+] Author Affiliations
Yunjun Zhan, Yubin Su, Jiejun Huang

Wuhan University of Technology, School of Resources and Environmental Engineering, 122 Luoshi Road, Wuhan, Hubei 430070, China

Fawang Ye, Chuan Zhang

Beijing Research Institute of Uranium Geology, National Key Laboratory of Remote Sensing Information and Image Analysis Technology, 10 Anwai Xiaoguandongli, Beijing 100029, China

J. Appl. Remote Sens. 10(4), 045017 (Nov 14, 2016). doi:10.1117/1.JRS.10.045017
History: Received March 22, 2016; Accepted October 24, 2016
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Abstract.  The alteration of surrounding rock is an important prospecting indicator in mineral exploration, but some important minerals are unclassified or misclassified when using hyperspectral remote sensing mineral recognition. A method for mineral recognition mapping was proposed. In this method, a decision tree discrimination rule was established based on the classification and regression tree data-mining algorithm and the absorption characteristics of field-measured spectra. Compared with spectral angle mapping and mixture-tuned matched filtering (MTMF), this method is shown to be efficient for mineral recognition mapping using hyperspectral images; its accuracy is 85.06%, which is greater than that of the MTMF method (83.91%). The advantages of the proposed method comprise the reduction of errors caused by the setting of the artificial threshold for mineral mapping and the lesser degree of difficulty in its training. Furthermore, the hierarchy structure of the decision tree in this method reflects the recognition process clearly, and the rule nodes are closely related to the spectra of the minerals; therefore, the advantage of this method is the interpretability of the results and the process. This method could be used for mineral recognition and classification using hyperspectral images.

© 2016 Society of Photo-Optical Instrumentation Engineers

Topics

Absorption ; Minerals

Citation

Yunjun Zhan ; Yubin Su ; Jiejun Huang ; Fawang Ye and Chuan Zhang
"Mineral recognition mapping using measured spectra based on classification and regression tree", J. Appl. Remote Sens. 10(4), 045017 (Nov 14, 2016). ; http://dx.doi.org/10.1117/1.JRS.10.045017


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