Research Article

Soybean Saponin Content Detection Based on Spectral and Image Information Combination

Table 6

Prediction results based on different modelling methods.

ModelInputRMSERPD

PLSRSingle spectral information0.71953.0639 × 10−31.8881
Ensemble learningSingle spectral information0.79422.5261 × 10−32.2043
Optimized ensemble learningSingle spectral information0.84062.3118 × 10−32.5047
PLSRSpectral image combination information0.78042.9747 × 10−32.1339
Ensemble learningSpectral image combination information0.84832.1685 × 10−32.5675
Optimized ensemble learningSpectral image combination information0.92161.7071 × 10−33.5714