文献类型：期刊文献

英文题名：Study of PCB automatic optical inspection system based on mathematical morphology

作者：Lin, Li-Zong[1]; Zhou, Luo-Shan[1]; Wan, Jian-Ding[1]; Qian, Zhi-Qin[1]

机构：[1] School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, China

年份：2009

卷号：2

起止页码：405

外文期刊名：ICCTD 2009 - 2009 International Conference on Computer Technology and Development

收录：EI(收录号：20101712876187)

语种：英文

外文关键词：Automation - Data handling - Defects - Organic pollutants - Printed circuit boards - Optical data processing - Light transmission - Mathematical morphology - Pattern recognition - Inspection

摘要：The automatic optical inspection algorithm based on pattern recognition and mathematical morphology is promoted, which can be used to detect some kinds of defects in PCBs. In this paper, the conception of linkage information table was presented which is regarded as correlation features of template PCBs. This paper also includes pre-processing and feature extractor. Compared with features between detected images and template images based on linkage information table, those defects existed in tested PCBs can be identified, which has achieved the automatic identification and real time inspection. Proved by some experiments, this algorithm will largely compress feature data volume, decrease correlation workload and decrease data processing time. ? 2009 IEEE.