机构地区: 嘉应学院电子信息工程学院
出 处: 《煤矿机械》 2012年第5期141-143,共3页
摘 要: 通过对零件尺寸机器视觉检测系统的关键技术进行研究,分析了零件边缘灰度值变化,结合Roberts算子检测出的边缘呈多像素宽度的特点,提出了基于最小二乘曲线拟合的亚像素边缘检测方法用于边缘检测。实验结果表明:检测系统的测量精度能达到2μm。 This paper investigates the key technologies of dimensional inspection system for part base on machine vision,analyses the gradient of part edge,with multi-pixel width which were detected by Roberts operator.A sub-pixel edge detection method based on least-squares curve-fitting were proposed.The experimental results show the inspection accuracy of the inspection system can reach to 2 μm.
关 键 词: 零件尺寸 机器视觉检测 最小二乘曲线拟合 亚像素
领 域: [自动化与计算机技术] [自动化与计算机技术]