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Nondestructive optical methods based on visible and near infrared reflectance spectroscopy(Vis/NIRS) have been used for estimation of physiological properties of batches of fruit and vegetable products. The objective of this study was to evaluate the application of Vis/NIRS in measuring total acidity of tomato. Reflectance spectra in the 360-1050 nm range were scanned on 200 tomato samples which were...
The potential of artificial neural network (ANN) as a way for the nondestructive variety discrimination of fragrant mushrooms was evaluated. First, the visual and near infrared spectral data were analyzed by principal components analysis (PCA) for space clustering. The principal components (PCs) containing the main information of original spectra were picked out as the inputs of BP-ANN with three...
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