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.
[1] Pourreza A, Pourreza H, Abbaspour-Fard M H, et al. Computers and Electronics in Agriculture, 2012, 83: 102. [2] Song K, Liu Z K, Su H, et al. Measuring Technology and Mechatronics Automation(ICMTM), 2011, 1: 246. [3] Salgo A, Gergely S. Journal of Cereal Science, 2012, 56(1): 31. [4] LIU Tian-ling, SU Qi-ya, SUN Qun, et al(刘天玲, 苏琪雅, 孙 群, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2012, 32(6): 1550. [5] Fernandez-Cuesta A, Fernandez-Martinez J M, Velasco L. Journal of the American Oil Chemists Society, 2012, 89(3): 431. [6] Agelet L E, Ellis D D, Duvick S, et al. Journal of Cereal Science, 2012, 55(2): 160. [7] Zhu D Z, Wang C, Pang B S, et al. Journal of Nanoelectronics and Optoelectronics, 2012, 7(2): 167. [8] Manley M, McGoverin C M, Engelbrecht P, et al. Talanta, 2012, 89: 223. [9] Tax D M J, Duin R P W. Machine Learning, 2004, 54(1): 45. [10] ZHOU Wang, SHEN Wei-min, ZHOU Jian-kang, et al(周 望, 沈为民, 周健康, 等). Laser & Optoelectronics Progress(激光与光电子学进展), 2010, 47: 96. [11] Polder G, Gerie W A M, Heijden V D. Journal of Near Infrared Spectroscopy, 2003, 11(3): 193. [12] CHEN Yue-ting, XU Dong-hui, LI Qi(陈跃庭, 许东晖, 李 奇). Chinese Journal of Scientific Instrument(仪器仪表学报), 2006, 27(6s):2121. [13] HU Wen-jun, WANG Shi-tong(胡文军, 王士同). Acta Automatica Sinica(自动化学报), 2011, 37(9): 1085. [14] Huang G X, Chen H F, Zhou Z L, et al. Pattern Recognition, 2011, 44(2): 320. [15] Perez-Guaita D, Ventura-Gayete J, Perez-Rambla C, et al. Analytical and Bioanalytical Chemistry, 2012, 404(3): 404.