A non-contact real-time measurement of lamp dimension based on machine vision  

作　　者：宋丽梅 王朋强 常玉兰 李晓捷 习江涛 郭庆华 李秉男 

机构地区：[1]Key Laboratory of Advanced Electrical Engineering and Energy Technology, Tianjin Polytechnic University [2]School of Electrical, Computer and Telecommunications Engineering, University of Wollongong,Keiraville 2500,Australia [3]Baoding Life Automotive Lighting Group Company Limited

出　　处：《Optoelectronics Letters》2015年第2期145-148,共4页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.60808020 and 61078041);the National Science and Technology Support(No.2014BAH03F01);the Tianjin Research Program of Application Foundation and Advanced Technology(No.10JCYBJC07200);the Technology Program of Tianjin Municipal Education Commission(No.20130324)

摘　　要：In order to realize the online measurement of lamp dimension,the bulb image dimension measurement based on vision(BIDMV)is proposed.The image of lamp is obtained by camera.After image processing,such as Otsu algorithm,median filter,ellipse fitting and envelope rectangle fitting,the dimension of lamp can be calculated.Based on this method,a non-contact real-time measurement system of the lamp’s dimension is developed.The precision of the proposed method is 0.07 mm,and it can satisfy the tolerance of the National Standard GB15766.1-2008.The experiment results show that the proposed method has a faster measuring speed and a higher precision compared with other measurement methods.

关 键 词：Image processing Median filters Time measurement 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] TU198.6[自动化与计算机技术—计算机科学与技术]