工业干扰背景下的刹车盘定位方法研究  

Location of Brake Disc Under Disturbing Industrial Environment

作　　者：顾寄南[1] 许悦 唐良颖 GU Ji-nan;XU Yue;TANG Liang-ying(Mechanical Information Research Center of Jiangsu University,Jiangsu Zhenjiang212013,China)

机构地区：[1]江苏大学制造业信息化研究中心,江苏镇江212013

出　　处：《机械设计与制造》2020年第9期136-139,共4页Machinery Design & Manufacture

基　　金：江苏省科技成果转化项目(BA2015026)。

摘　　要：针对传送辊道上的刹车盘背景较为复杂的问题,提出了一种稳定性好、定位精度高的视觉定位算法。为去除灰尘、光线等因素的干扰,利用中值滤波对所采集图像进行预处理。通过背景差分得到模板图像后,运用基于边缘的模板匹配完成刹车盘的粗定位,去除了复杂辊道背景的干扰,并利用图像金字塔降低其算法复杂度,提高了算法速度。为满足精度要求,利用刹车盘自身具有的同心圆几何特征,实现了刹车盘中心精定位。试验表明,该定位方法成功率较高,能够满足实际上下料的需求。In order to solve the problem that the brake disc background on the transfer roller is complicated,a visual localization algorithm with good stability and high positioning accuracy is proposed.In order to remove the interference of dust,light and other factors,the collected image is pre-processed using median filtering.After getting the template image from background subtraction,the edge based template matching is used to locate the brake disc,and the background interference of the complex roller table is eliminated.Using image Pyramid to reduce the complexity of the algorithm and speed up the algorithm.In order to meet the accuracy requirement,the center of the brake disc is precisely positioned by using the concentric circle geometric characteristics of the brake disc itself.Experiments show that the positioning method can meet the actual demand of blanking.

关 键 词：机器视觉 圆心定位 模板匹配 边缘检测 

分 类 号：TH16[机械工程—机械制造及自动化] TP242[自动化与计算机技术—检测技术与自动化装置]