Quantitative Detection of Quartz Sandstone SiO<sub>2</sub> Grade Using Polarized Infrared Absorption Spectroscopy with Convolutional Neural Network Model

<div>Prediction of the SPA-PLSR model: (a) original data; (b) first-order derivative; (c) reciprocal logarithm; and (d) MSC.The black and red lines show the 1 : 1 relationship and the model trend. The MSC-SPA-PLSR model falls within the largest number of points within the 95% confidence band.</div>

Journal of Spectroscopy

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Figure 6

Figure 6: Quantitative Detection of Quartz Sandstone SiO<sub>2</sub> Grade Using Polarized Infrared Absorption Spectroscopy with Convolutional Neural Network Model 

Figure 6 | Quantitative Detection of Quartz Sandstone SiO2 Grade Using Polarized Infrared Absorption Spectroscopy with Convolutional Neural Network Model 