Title
Researches of fruit quality prediction model based on near infrared spectrum
Abstract
With the improvement in standards for food quality and safety, people pay more attention to the internal quality of fruits, therefore the measurement of fruit internal quality is increasingly imperative. In general, nondestructive soluble solid content (SSC) and total acid content (TAC) analysis of fruits is vital and effective for quality measurement in global fresh produce markets, so in this paper, we aim at establishing a novel fruit internal quality prediction model based on SSC and TAC for Near Infrared Spectrum. Firstly, the model of fruit quality prediction based on PCA + BP neural network, PCA + GRNN network, PCA + BP adaboost strong classifier, PCA + ELM and PCA + LS_SVM classifier are designed and implemented respectively; then, in the NSCT domain, the median filter and the Savitzky-Golay filter are used to preprocess the spectral signal, Kennard-Stone algorithm is used to automatically select the training samples and test samples; thirdly, we achieve the optimal models by comparing 15 kinds of prediction model based on the theory of multi-classifier competition mechanism, specifically, the non-parametric estimation is introduced to measure the effectiveness of proposed model, the reliability and variance of nonparametric estimation evaluation of each prediction model to evaluate the prediction result, while the estimated value and confidence interval regard as a reference, the experimental results demonstrate that this model can better achieve the optimal evaluation of the internal quality of fruit; finally, we employ cat swarm optimization to optimize two optimal models above obtained from non parametric estimation, empirical testing indicates that the proposed method can provide more accurate and effective results than other forecasting methods.
Year
DOI
Venue
2017
10.1117/12.2309480
Proceedings of SPIE
Keywords
DocType
Volume
Near infrared spectroscopy,PCA,BPNN,GRNN
Conference
10696
ISSN
Citations 
PageRank 
0277-786X
0
0.34
References 
Authors
2
2
Name
Order
Citations
PageRank
Yulin Shen100.34
Lian Li218940.80