Ya-xuan WANG, Feng TAN, Yuan-ming XIN, Huan LI, Xiao-yu ZHAO, Bao-xin LU. Identification of Rice From Similar Areas With Different Pretreatment Methods of Raman Spectrum[J]. Spectroscopy and Spectral Analysis, 2021, 41(2): 565
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 2, 565 (2021)
Fig. 1. Raw Raman spectrum of three producing area of rice
Fig. 2. Main characteristic peaks of rice Raman spectrum
Fig. 3. Pre-processing method of first derivative+translation smoothing
Fig. 4. Pre-processing method of second derivative+translation smoothing
Fig. 5. Pre-processing method of wavelet transform+baseline removal
Fig. 6. Pre-processing method of piecewise polynomial fitting+baseline removal
Fig. 7. Relationship between true value and predicted value
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Table 1. Correlation coefficient, Mean square error, Root mean square error of different pretreatment methods
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Table 2. The number and recognition rate of different pre-processing methods in 17 test sample
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