Zong-bao SUN, Li-ming LIANG, Jun-kui LI, Xiao-bo ZOU, Xiao-yu LIU, Tian-zhen WANG. Identification of Chilled and Frozen-Thawed Salmon Based on Hyperspectral Imaging Technology[J]. Spectroscopy and Spectral Analysis, 2020, 40(11): 3530
- Spectroscopy and Spectral Analysis
- Vol. 40, Issue 11, 3530 (2020)
Fig. 1. The flow chart of sample preparation
Fig. 2. Hyperspectral imaging system
Fig. 3. Raw (a) and average spectra (b) of chilled and frozen-thawed salmon samples
Fig. 4. Wavelength selection results of CARS
Fig. 5. Wavelength selection results of SPA
(a): Characteristic wavelength screening;(b): Selected characteristic wavelength
(a): Characteristic wavelength screening;(b): Selected characteristic wavelength
Fig. 6. The first three principal component images (PC1, PC2, PC3 in turn from left to right)
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Table 1. Identification results of chilled and frozen-thawed salmon based on full spectrum variables
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Table 3. Identification results of chilled and frozen-thawed salmon based on spectral and texture information
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Table 4. Identification results of frozen-thawed times of salmon based on spectral and texture information
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