PCB钻孔自动光电检测精确配准关键算法

doi:10.3969/j.issn.1000-1158.2011.04.03

Abstract
Figure/Table
References (9)
Related Citation (15)

Download: PDF (858 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to realize the fast automatic PCB drill inspection, a fast arithmetic of image registration between standard PCB and testing PCB is proposed. The basic process of the image algorithm and the system structure are introduced. The process of registration is mainly consisted of approximate registration and accurate registration. Edge extraction and Hough transformation are used to obtain 4 corners coordinate of PCB firstly; the coordinates of location hole of the testing PCB can be obtained after approximate registration; the coordinates of circle center of location hole between the testing PCB and standard PCB are used to process accurate registration. Experience shows the method greatly improved the accuracy of image registration. The speed of the arithmetic also meets the needs of the real time process.

Key words： Metrology Printed Circuit Board Hough transformation Image process Approximate registration Accurate registration;Location hole

PACS:

TB92

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	HUANG Yong-lin
	YE Yu-tang
	Chen Zhen-long
	Liu Lin

Cite this article:

HUANG Yong-lin,YE Yu-tang,Chen Zhen-long, et al. Key Arithmetic of Image Accurate Registration for Automatic PCB Drill Photoelectric Inspection[J]. Acta Metrologica Sinica, 2011, 32(4): 301-304.

URL:

http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2011.04.03 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2011/V32/I4/301