Miao YANG, Ye ZHAN, Yuting FU, Guang YANG. Lithology analysis of rock with high repetition frequency laser⁃induced breakdown spectroscopy combined with convolutional neural network[J]. Chinese Journal of Quantum Electronics, 2024, 41(3): 553

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- Chinese Journal of Quantum Electronics
- Vol. 41, Issue 3, 553 (2024)

Fig. 1. Experiental Setup

Fig. 2. Experimental samples

Fig. 3. Full spectrum of rock samples

Fig. 4. Spectral line calibration of rock sample (No.1/D03) (The intensity of the calibrated lines≥2000)

Fig. 5. Original spectra of rock sample (No.16/19DJ-5)

Fig. 6. Spectra of rock sample (No.16/19DJ-5) after pretreatment

Fig. 7. Model 1D-CNN network parameter information

Fig. 8. 1D-CNN confusion matrix for rock 5 classification

Fig. 9. 1D-CNN confusion matrix for rock 9 classification

Fig. 10. Model ResNet34 network parameter information

Fig. 11. ResNet34 confusion matrix for rock 5 classification

Fig. 12. ResNet34 confusion matrix for rock 9 classification

Fig. 13. Data preprocessing interface

Fig. 14. Test category interface
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Table 1. Information of rock samples
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Table 2. Confusion matrix of dichotomous problem
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Table 3. 1D⁃CNN result for rock 5 classification
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Table 4. 1D⁃CNN result for rock 9 classification
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Table 5. ResNet34 result for rock 5 classification
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Table 6. ResNet34 result for rock 9 classification
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Table 7. Comparative analysis of experimental results

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