Ye-lan WU, Hui-ning GUAN, Xiao-qin LIAN, Chong-chong YU, Yu LIAO, Chao GAO. Study on Detection Method of Leaves With Various Citrus Pests and Diseases by Hyperspectral Imaging[J]. Spectroscopy and Spectral Analysis, 2022, 42(8): 2397
- Spectroscopy and Spectral Analysis
- Vol. 42, Issue 8, 2397 (2022)
Fig. 1. All spectral curves of six types of leaf samples
Fig. 2. Average spectra of six types of leaf samples
Fig. 3. Process of selecting characteristic wavelengths by CARS for original spectrum
Fig. 4. Loading curves of the first four principal components of the original spectrum
Fig. 5. Feature importance screening by XGBoost
Fig. 6. Modeling results of XGBoost using full-band
Fig. 7. Modeling results of SVM using Characteristic wavelengths
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Table 1. Extracting characteristic wavelengths by CARS and PCA
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Table 2. Modeling results of XGBoost and SVM
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