吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (6): 1811-1817.doi: 10.13229/j.cnki.jdxbgxb201406042

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基于I-RELIEF和SVM的畸形马铃薯在线分选

张保华1, 2, 黄文倩2, 李江波2, 赵春江1, 2, 刘成良1, 黄丹枫1   

  1. 1.上海交通大学 机械系统与振动国家重点实验室,上海 200240;
    2. 北京农业智能装备技术研究中心,北京 100097
  • 收稿日期:2013-04-26 出版日期:2014-11-01 发布日期:2014-11-01
  • 通讯作者: 赵春江(1964-),男,教授,博士生导师.研究方向:农业机械化与自动化,农业信息化,E-mail:zhaocj@nercita.org.cn
  • 作者简介:张保华(1986-),男,博士研究生.研究方向:基于机器视觉与模式识别的农产品无损检测.E-mail:
  • 基金资助:
    国家自然科学青年基金项目(31301236); “863”国家高技术研究发展计划项目(2013AA100307); 2012年北京市农林科学院博士后基金项目

Online sorting of irregular potatoes based on I-RELIEF and SVM method

ZHANG Bao-hua1, 2, HUANG Wen-qian2, LI Jiang-bo2, ZHAO Chun-jiang1, 2, LIU Cheng-liang1, HUANG Dan-feng1   

  1. 1.State Key Laboratory of Mechanical System and Vibration, Shanghai Jiaotong University, Shanghai 200240, China;
    2.Beijing Research Center of Intelligent Equipment for Agriculture, Beijing 100097, China
  • Received:2013-04-26 Online:2014-11-01 Published:2014-11-01

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摘要： 在提取的RGB图像的R分量图像上提取二值图像和边界图像,计算马铃薯图像的偏心度、矩形度、圆形度以及边界图像的10个傅立叶描述子等共计13个形状特征。其次把样本的形状特征输入到I-RELIEF模块中,求出各个形状特征在分类中的影响程度,即各自权值。然后把带权值的样本形状特征输入到支持向量机算法模块中进行训练,从而得到分类器。最后用分类器实现畸形马铃薯的在线分选。试验结果表明:该方法每秒钟可以检测4个马铃薯,可以满足分选设备的实时性要求,并且畸形马铃薯的识别率高达98.1%。

关键词: 机器视觉, 马铃薯分选, 傅立叶描述子, 在线检测, 支持向量机

Abstract: An online sorting method of irregular potatoes is proposed. First, the R-component image is extract, and then the binary image and boundary image are obtained by thresholding method. Second, thirteen essential geometrical features, such as eccentricity, rectangle degree and roundness, and ten Fourier descriptors are extracted. Third, the geometrical features of the potato image sample are feed into the module of I-RELIEF algorithm, which exports a weight for each feature. Fourth, the features of the potato image sample with weights are feed into the training module of Support Vector Machine (SVM). Finally, the classifier model is used to make decision and achieve the grading result online based on the potato's features and weights. Results show that the SVM method can detect and sort four potatoes per second with the help of I-RELIEF module, and the overall accuracy is 98.1%.

Key words: computer vision, potato sorting, fourier descriptor, in-line detection, support vector machine(SVM)

中图分类号: 

  • S126
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