Study on Nondestructive Detection of Wheat Quality by Using THz Spectroscopy and Multisource Information Fusion
GE Hong-yi1,2, JIANG Yu-ying1,2, ZHANG Yuan2*, LIAN Fei-yu1,2
1. College of Information Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
2. Key Laboratory of Grain Information Processing & Control, Ministry of Education, Henan University of Technology, Zhengzhou 450001, China
Abstract:In order to improve the measurement precision of identification models, multisource information fusion technique was employed to identify four types of wheat grain (normal, worm-eaten, moldy, and sprouting wheat grains). The terahertz (THz) spectra of wheat grains with various degrees of deterioration were investigated; classification fusion models were constructed by using THz absorption spectra combined with refractive index spectra. The adaboost and SVM were used in the feature level fusion models. The results showed that the different wheat samples were identified with an accuracy of nearly 95%. Furthermore, fusion models results of wheat detection were compared with results from other methods, the comparisons showed that the recognition ratio of fusion models had a great improvement, and the SVM model outperformed the others.
Key words:THz-TDS; Multisource information fusion; SVM; Wheat quality
葛宏义,蒋玉英,张 元,廉飞宇. 基于THz光谱和多信息融合的小麦品质无损检测研究[J]. 光谱学与光谱分析, 2017, 37(11): 3338-3342.
GE Hong-yi, JIANG Yu-ying, ZHANG Yuan, LIAN Fei-yu. Study on Nondestructive Detection of Wheat Quality by Using THz Spectroscopy and Multisource Information Fusion. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(11): 3338-3342.
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