作者：李爱莲1, 郭志斌1, 解韶峰2, 赵多祯1, 张帅1
作者单位：1. 内蒙古科技大学信息工程学院, 内蒙古 包头 014010;
2. 内蒙古科技大学基建处, 内蒙古 包头 014010
关键词：钢板表面缺陷分类;图像特征融合;蚁群算法;粒子群算法;支持向量机
摘要：
热轧带钢表面的温度高、生产速度快，辐射光强，并且存在着水、氧化铁皮、光照不均等现象，难以通过人工进行表面质量在线检测。针对当前国内某钢厂热轧钢板表面缺陷检测仍由人工离线完成、缺陷识别准确率低的生产问题，充分利用大量图像信息，提出一种图像处理与蚁群和粒子群混合优化支持向量机结合的缺陷分类方法。首先，融合局部二值模式和局部相位量化两种特征提取方式的优点，进行钢板缺陷图片的特征提取，采用蚁群和粒子群优化出支持向量机的惩罚参数和核函数参数进行钢板表面的缺陷分类。最后采用Matlab仿真平台，将蚁群和粒子群混合优化的支持向量机分类模型与传统的支持向量机分类模型进行仿真对比分析。试验结果表明，采用蚁群和粒子群混合优化的支持向量机分类模型的分类精度高于传统的支持向量机模型。
Research on surface defect classification of steel plate based on ant colony and particle swarm optimization SVM
LI Ailian1, GUO Zhibin1, XIE Shaofeng2, ZHAO Duozhen1, ZHANG Shuai1
1. Information Engineering Institute, Inner Mongolia University of Science and Technology, Baotou 014010, China;
2. Capital Construction Department, Inner Mongolia University of Science and Technology, Baotou 014010, China
Abstract: The temperature of hot-rolled steel plate surface is high, production speed is fast, radiation is strong, and there are water, iron oxide scale, light uneven phenomenon, it is difficult to carry out surface quality on-line detection by manual. In view of the problem that the defect detection of hot-rolled steel plate surface in a domestic steel plant is still completed by manual off-line and the accuracy of defect recognition is low, a defect classification method combining image processing with ant colony optimization and particle swarm optimization support vector machine was proposed by making full use of a large number of image information on the spot. Firstly, the advantages of two feature extraction methods, local binary pattern (LBP) and local phase quantization (LPQ), were combined to extract the features of steel plate defect images.The penalty parameters and kernel function parameters of support vector machine (SVM) were optimized by ant colony optimization and particle swarm optimization (PSO) to classify the surface defects of steel plate. Finally, the support vector machine classification model based on ant colony optimization and particle swarm optimization was compared with the traditional support vector machine classification model by using Matlab simulation platform. The experimental result shows that the classification accuracy of the support vector machine classification model based on ant colony optimization and particle swarm optimization is higher than that of the traditional support vector machine model.
Keywords: surface defect classification of steel plate;image feature fusion;ant colony optimization;particle swarm optimization;support vector machine
2020, 46(1):110-116 收稿日期: 2019-05-29;收到修改稿日期: 2019-07-09
基金项目: 内蒙古自治区自然科学基金项目资助(2016MS0610，2014MS0612)；内蒙古科技大学产学研合作培育基金资助项目(PY-201512)
作者简介: 李爱莲(1973-),女,河北唐山市人,副教授,硕士,主要从事复杂过程建模、优化控制研究
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