基于穿线法的胎侧散线缺陷检测  

Defect Detection of Sidewall Loose Line Based on Threading Method

作　　者：赵鹏鹏 陈仁龙 李金屏[1,2] ZHAO Pengpeng;CHEN Renlong;LI Jinping(School of Information Science and Engineering,University of Jinan,Jinan 250022,China;Shandong Provincial Key Laboratory of Network Based Intelligent Computing,University of Jinan,Jinan 250022,China)

机构地区：[1]济南大学信息科学与工程学院,山东济南250022 [2]济南大学山东省网络环境智能计算技术重点实验室,山东济南250022

出　　处：《济南大学学报（自然科学版）》2018年第3期218-222,共5页Journal of University of Jinan(Science and Technology)

基　　金：国家自然科学基金项目(61203341);山东省科技重大专项(新兴产业)(2015ZDXX0801A03);山东省高等学校科技计划项目(J14LNXX);济南大学科研基金项目(XKY1412)

摘　　要：针对轮胎内部胎侧出现的散线缺陷,提出一种基于穿线法的胎侧散线缺陷检测方法;该方法利用大津法和快速并行细化算法对X射线轮胎图像分别进行二值化、细化等预处理,以利于观察轮胎帘线信息;根据细化后胎侧的帘线确定上、下2条边界线,并在2条边界线内以一定步长进行穿线,进而统计穿线与帘线之间交点总个数以及每条穿线上交点的平均个数、相邻交点疏密情况;通过每条穿线上的交点个数与之前所求平均个数进行比较,结合相邻交点的疏密情况、有无交叉点,进而判断是否存在散线缺陷;对1 000幅包含有人为添加不同弯曲程度、斜率走向的散线细化图片和168张实际的X射线轮胎图片分别进行缺陷检测。结果表明,该方法可以有效地检测出胎侧部位的散线缺陷并标记其所在区域。Aiming at the defect of existing in loose line the sidewall of tires,a method for defect detection of sidewall loose line based on threading method was proposed.X ray tire images were binarized and refined by the Otsu method and the fast parallel refinement algorithm separately,which was beneficial to observation of the tire cord information.According to the cord of the refinement sidewall,the upper and lower boundary lines were determined,and threading was operat-ed in the two boundary lines with a certain length,the purpose for the arrangement was to calculate the total number of intersections between the threading and cord,the average number of the intersection and the density of the adjacent intersection on each thread.In order to judge the existence of loose line defects,the number of intersections on each threading line was compared with the previously calculated average number,and the density and crossing condition of adjacent points of intersection were considered.1 000 binarized images artificially added varying degrees of bending and different slope of loose line and 168 actual tire images were tested respectively.The experimental results show that the proposed method can effectively detect the defect area of the tire and draw the area of loose line.

关 键 词：轮胎 散线 穿线法 缺陷检测 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]