| 异物在线识别中一类支持向量机机理及实现 |
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| 引用本文： | 姚富光,钟先信,唐向阳. 异物在线识别中一类支持向量机机理及实现[J]. 光学精密工程, 2009, 17(4): 937-942 |
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| 作者姓名： | 姚富光 钟先信 唐向阳 |
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| 作者单位： | 重庆大学,光电技术及系统教育部重点实验室,重庆,400030;云南昆船设计研究院,云南,昆明,650236 |
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| 基金项目： | 云南省省院省校科技合作计划，国家高科技产业工业过程自动化专项/企业集成自动化系统资助项目 |
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| 摘 要： | 针对高速异物在线识别中正常物料与异物颜色差异及异物颜色随机性的特点，研究了一类支持向量机在异物识别中的特性，提出了一种基于一类超球面支持向量机的在线识别算法，通过OC-SVM确定正常物料的颜色分布，从而对异物进行识别。在求解OCSVM过程中，提出了超球面离心系数ω的概念，并采用Zoutendijk可行方向机制确定工作集，简化了序列最小优化算法。研究工作表明，该算法速度快，整体运算时间比LibSVM减少20%；识别率高，尤其对与正常物料颜色接近的异物有明显效果，与一维和三维正态拟合算法相比，整体识别率提高约8～10%。
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| 关 键 词： | 一类支持向量机 异物颜色随机性 异物 序列最小优化 |
| 收稿时间： | 2008-10-14 |
| 修稿时间： | 2008-12-11 |
Mechanism and implementation of one class support vector machines in fast foreign real-time recognition |
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| YAO Fu-guang,ZHONG Xian-xin,TANG Xiang-yang. Mechanism and implementation of one class support vector machines in fast foreign real-time recognition[J]. Optics and Precision Engineering, 2009, 17(4): 937-942 |
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| Authors: | YAO Fu-guang ZHONG Xian-xin TANG Xiang-yang |
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| Affiliation: | 1.Key Laboratory of Optoelectronics Technology and Systems of the Ministry of Education;Chongqing University;Chongqing 400030;China;2.Design & Research Institute of KSEC;Kunming 650236;China |
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| Abstract: | By considering the color randomicity of foreigns and the color difference between the regular materials and the foreigns in fast foreign real-time recognition,the specialities of an One-class Support Vertor Machine(OC-SVM) for foreign recognition are studied,and an approach to real-time recognition based on hypersphere OC-SVM is presented.In this method,the OC-SVM is used to determine the color distribution of the regular materials to find out the foreigns out of the range of the regular materials in color.... |
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| Keywords: | Hypersphere One-class Support Vector Machines Randomicity of Foreign Color Foreign Sequential Minimal Optimization |
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