Spectroscopy and Spectral Analysis, Volume. 42, Issue 6, 1907(2022)
Optimization of Online Determination Model for Sugar in a Whole Apple Using Full Transmittance Spectrum
Figures & Tables(9)
Fig. 1. Schematic of the on-line transmittance spectra measurement system
Fig. 2. Sugar prediction model based on different detection orientations
Fig. 3. The schematic diagram of different detection orientations
(a): Different orientations; (b): Spectral collection positions; (c): Raw multi-point transmittance spectra
Fig. 4. Average spectral curves of a whole apple with three different detection orientations
Fig. 5. Spectral intensity changes at 920 nm for different detection orientations
Fig. 6. Dynamic curves of predictive model performance changing with spectral signal threshold in different detection orientations
Fig. 7. Dynamic curves of universal prediction model performance changing with spectral signal threshold in multiple orientations
Table 1. The detection result of restricted model
View tableView in ArticleTable 1. The detection result of restricted model
检测姿态 预处理方法 校正集 预测集 Rc RMSEC
/%T1 T2 T3 Rp RMSEP/% RPD Rp RMSEP/% RPD Rp RMSEP/% RPD T1 Raw 0.99 0.85 0.74 0.91 1.15 0.69 1.23 0.89 0.57 2.3 0.69 Smoothing 0.88 0.76 0.81 0.80 1.45 0.74 1.15 1.11 0.67 2.13 0.75 SNV 0.87 0.73 0.79 0.83 1.37 0.71 1.22 0.96 0.53 2.76 0.86 MSC 0.88 0.85 0.75 1.28 0.96 0.73 0.93 1.28 0.70 1.25 1.04 T2 Raw 0.99 0.90 0.75 1.19 0.86 0.73 0.93 1.10 0.64 1.30 1.06 Smoothing 0.86 0.85 0.79 1.07 1.09 0.76 0.89 1.36 0.76 1.00 1.37 SNV 0.87 0.85 0.75 1.24 0.98 0.73 0.94 1.26 0.49 2.49 1.11 MSC 0.88 0.85 0.75 1.28 0.96 0.73 0.93 1.28 0.70 1.25 1.04 T3 Raw 0.96 0.96 0.60 1.15 0.88 0.61 1.23 0.81 0.67 1.04 1.08 Smoothing 0.88 0.86 0.66 1.06 1.00 0.69 1.00 1.11 0.77 0.88 1.42 SNV 0.80 0.91 0.57 1.39 0.58 0.51 1.25 0.65 0.62 1.24 1.06 MSC 0.80 0.91 0.56 1.53 0.74 0.49 1.36 0.86 0.62 1.26 1.06
Table 2. The detection result of universal model
View tableView in ArticleTable 2. The detection result of universal model
预处理方法 校正集 预测集 Rc RMSEC
/%T1 T2 T3 Rp RMSEP/% RPD Rp RMSEP/% RPD Rp RMSEP/% RPD Raw 0.94 0.83 0.77 0.86 1.20 0.78 0.85 1.26 0.77 0.86 1.32 Smoothing 0.83 0.79 0.78 0.85 1.23 0.76 0.87 1.27 0.79 0.84 1.48 SNV 0.80 0.87 0.70 1.02 0.94 0.65 1.07 0.89 0.67 1.20 1.34 MSC 0.83 0.80 0.74 0.92 1.22 0.69 0.98 1.15 0.70 1.03 1.31
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Xi TIAN, Li-ping CHEN, Qing-yan WANG, Jiang-bo LI, Yi YANG, Shu-xiang FAN, Wen-qian HUANG. Optimization of Online Determination Model for Sugar in a Whole Apple Using Full Transmittance Spectrum[J]. Spectroscopy and Spectral Analysis, 2022, 42(6): 1907
Paper Information
Category: Research Articles
Received: May. 31, 2021
Accepted: --
Published Online: Nov. 14, 2022
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