Defects Detection System for Fluorescent Coating of Metal Plate Based on Machine Vision
Aiming to solve the defects detection problems of metal plate fluorescent coating in printing,a machine vision-based metal plate fluorescent coating printing quality online detection system was provided.According to the requirements of factory and measurement accuracy,the camera,lens and illumination mode in the image acquisition module are selected,which forms an imaging effect that is conducive to image processing,and the problem of highlight bright spots and the surrounding object reflections caused by the reflective surface of the coating surface has been solved.Using color space conversion technology,BLOB analysis technology,sub-pixel edge extraction technology and template matching technology to detect common defects that appear on the coating,such as color spots,uneven printing,pattern defects.Under VS2010 environment,based on C# and Halcon,the on-line inspection software system for the printing quality of fluorescent coatings on the metal plate was developed.This software is used to test examples online,the results show that the speed of the provided detection system is quickly and the detection results are reliable,it can meet the requirements of factory.
Machine vision Fluorescent coating Defect detection Sub-pixel Template matching
Yujin Wu Fengxia Zhao Chuanfu Xin Jianshe Gao Zhigao Chen
School of Mechanical Engineering,Zhengzhou University,Zhengzhou 450001,China Henan Police Signage Production Center,Zhengzhou 450000,China
国际会议
浙江湖州
英文
1136-1149
2019-08-12（万方平台首次上网日期，不代表论文的发表时间）