Tao CHEN, Hui GUO, Man YUAN, Fu-yuan TAN, Yi-zhou LI, Meng-long LI. Recognition of Different Parts of Wild Cordyceps Sinensis Based on Infrared Spectrum[J]. Spectroscopy and Spectral Analysis, 2021, 41(12): 3727
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 12, 3727 (2021)
Fig. 1. The averaged Fourier-transform infrared spectra for different parts of Cordyceps (a); The similarities between each two parts of Cordyceps (b)
Fig. 2. The confusion matrix of independent data set by different methods
(a): CARS-PLS-DA; (b): CARS-LDA; (c): VCPA-PLS-DA; (d): VCPA-LDA
(a): CARS-PLS-DA; (b): CARS-LDA; (c): VCPA-PLS-DA; (d): VCPA-LDA
Fig. 3. The result of feature selection method CARS (a) and VCPA (b)
Fig. 4. The box-plot A (1 084, 1 024, 630, 879 cm-1) and heat-map for Wilcoxon rank-sum test of wavenumbers selectedby CARS B(1 084, 1 024, 630, 879 cm-1)
Fig. 5. The box-plot A(1 089, 1 028, 874, 625 cm-1) and heat-map for Wilcoxon rank-sum test of wavenumbers selected by VCPA B(1 089, 1 028, 874, 625 cm-1)
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Table 1. General information of samples
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Table 2. The model performance on discriminating different cordyceps parts
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Table 3. Holistic assignment of infrared spectroscopy spectra of Cordyceps
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