光谱学与光谱分析 |
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Maize Seed Identification Using Hyperspectral Imaging and SVDD Algorithm |
ZHU Qi-bing, FENG Zhao-li, HUANG Min, ZHU Xiao |
Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education), Jiangnan University, Wuxi 214122, China |
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Abstract The sufficiency of feature extraction and the rationality of classifier design are two key issues affecting the accuracy of maize seed recognition. In the present study, the hyperspectral images of maize seeds were acquired using hyperspectral image system, and the image entropy of maize seeds for each wavelength was extracted as classification features. Then, support vector data description (SVDD) algorithm was used to develop the classifier model for each variety of maize seeds. The SVDD models yielded 94.14% average test accuracy for known variety samples and 92.28% average test accuracy for new variety samples, respectively. The simulation results showed that the proposed method implemented accurate identification of maize seeds and solved the problem of misclassification by the traditional classification algorithm for new variety maize seeds.
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Received: 2012-07-12
Accepted: 2012-10-25
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Corresponding Authors:
ZHU Qi-bing
E-mail: zhuqib@163.com
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