Qi-feng HU, Jian CAI. Research of Terahertz Time-Domain Spectral Identification Based on Deep Learning[J]. Spectroscopy and Spectral Analysis, 2021, 41(1): 94
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 1, 94 (2021)
Fig. 1. Absorption spectra of five acids
Fig. 2. (a) Absorption spectra of Vitamin B2 of different concentrations; (b) Absorption spectra of Vitamin B2 in different humidity
Fig. 3. Result of S-G filtering
Fig. 4. RNN classification network structure
Fig. 5. CNN classification network structure
Fig. 6. Spectral images of 12 materials
Fig. 7. The training process of RNN network
Fig. 8. The training process of CNN network
Fig. 9. (a) Comparative experiment of concentrations of samples; (b) Comparative experiment of data dimensions
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Table 1. Performance comparison of three algorithms
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Table 2. The effect of data preprocessing on performance of RNN and CNN
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