Jiang-tao JI, Peng-ge LI, Xin JIN, Hao MA, Ming-yong LI. Study on Quantitative Detection of Tomato Seedling Robustness in Spring Seedling Transplanting Period Based on VIS-NIR Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2022, 42(6): 1741
- Spectroscopy and Spectral Analysis
- Vol. 42, Issue 6, 1741 (2022)
Fig. 1. The robustness evaluation value of tomato seedlings in the spring seedling transplanting period
Fig. 2. The distribution of tomato simplified evaluation value within the evaluation value range
Fig. 3. Classification of tomato seedlings in spring seedling transplanting period
(a): Overall condition of tomato plug seedlings; (b): High quality seedlings; (c): Qualified seedlins; (d): Poor quality seedlings
(a): Overall condition of tomato plug seedlings; (b): High quality seedlings; (c): Qualified seedlins; (d): Poor quality seedlings
Fig. 4. Spectra of tomato seedlings in the spring nursery and transplant period
(a): Raw spectral curve;(b): Spectral curve after denoising;(c): Spectral curve after MSC pretreatment
(a): Raw spectral curve;(b): Spectral curve after denoising;(c): Spectral curve after MSC pretreatment
Fig. 5. Key variables selection results by CARS
Fig. 6. The distribution of characteristic wavelengths selected by CARS in the whole band
Fig. 7. The distribution of characteristic wavelengths selected by UVE-SPA in the whole band
Fig. 8. CNN structure based on U-Net model
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Table 1. Weight coefficient of individual index of tomato seedlings in spring transplanting period
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Table 2. Quality classification results of tomato seedlings
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Table 3. Sample set division
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Table 4. Comparison of model effects of different spectral variables
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