基于OpenCV的高精度零件角点距离测量研究  

Research of High-precision Measurement of Parts Based on OpenCV

作　　者：易子豐[1] 孙坚[1] 钟绍俊[1] 孔红红[1] 

机构地区：[1]中国计量学院机电工程学院,浙江杭州310018

出　　处：《电视技术》2011年第17期126-128,共3页Video Engineering

基　　金：浙江省重大科技专项重点工业项目(2009C11070)

摘　　要：提出了一种基于OpenCV的非接触式的测量方案,为提高零件角点的测量精度提出了新的应用方案。首先使用摄像机标定方法来矫正透镜畸变,采用了中值滤波消除噪声,从图像中获得更多的细节和信息,利用哈里斯角点检测和亚像素检测方法实现角点提取。最后,实验分析和比较了基于OpenCV的高精度零件角点测量的应用效果。A project of untouched measurement based on OpenCV is proposed to combine the newest untouched measurement technique with the problem of size measurement between comers of parts. Firstly, the rectified image is got by using camera calibration. Secondly, median filter is used to get more details and information from images. Thirdly, the Harris corner detection technique and sub-pixel detection technique are used to get the extraction of corners. At last, the size measurement result of parts based on OpenCV by experiment is analyzed.

关 键 词：OPENCV 哈里斯角点检测 摄像机标定 亚像素检测 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]