Spectroscopy and Spectral Analysis, Volume. 41, Issue 7, 2028(2021)
Near-Infrared Spectral Feature Selection of Water-Bearing Rocks Based on Mutual Information
Fig. 1. (a) Water sorption test system and near-infrared testing device; (b) schematic diagram of the experimental setup
Fig. 2. Visible light map of the conglomerate water absorption process
(a): 409 s; (b): 558 s; (c): 704 s; (d): 775 s; (e): 1 224 s
Fig. 3. Near-infrared spectrum of conglomerate point 1
(a): Original spectrum; (b): NPS+B-corr pre-processed spectrum
Fig. 5. Peak height of water content and water content level partition
(a): Point 1; (b): Point 2; (c): Point 3
Fig. 6. Water content level C-feature
(a): Height-C; (b): LHW-C; (c): RHW-C
Fig. 7. The accuracies of the decision tree classifier for peak
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Xiu-lian ZHANG, Fang ZHANG, Nuan ZHOU, Jing-jie ZHANG, Wen-fang LIU, Shuai ZHANG, Xiao-jie YANG. Near-Infrared Spectral Feature Selection of Water-Bearing Rocks Based on Mutual Information[J]. Spectroscopy and Spectral Analysis, 2021, 41(7): 2028
Category: Research Articles
Received: May. 26, 2020
Accepted: --
Published Online: Sep. 8, 2021
The Author Email: Xiu-lian ZHANG (xiulian1985@163.com)