Printed circuit board inspection using wavelet-based technique

Malaysia is a well-known country with high quality productions in electronic manufacturing industry. One of the backbones in electronic manufacturing industry is the Printed Circuit Board (PCB) manufacturing. Current practice in PCB manufacturing requires etching. This process is irreversible. Print...

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Main Author:	Ibrahim, Zuwairie
Format:	Thesis
Language:	English
Published:	2002
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/6678/1/ZuwairieIbrahimMFKE2002.PDF
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id	my-utm-ep.6678
record_format	uketd_dc
spelling	my-utm-ep.66782018-09-27T04:03:40Z Printed circuit board inspection using wavelet-based technique 2002-06 Ibrahim, Zuwairie TK Electrical engineering. Electronics Nuclear engineering Malaysia is a well-known country with high quality productions in electronic manufacturing industry. One of the backbones in electronic manufacturing industry is the Printed Circuit Board (PCB) manufacturing. Current practice in PCB manufacturing requires etching. This process is irreversible. Printing, which is done before etching, caused most of the destructive defects found on the PCB. Once the laminate is etched, the defects, if exist would cause the PCB laminate to be of no use. Due to the fatigue and speed requirement, manual inspection is ineffective in inspecting every printed laminate. Therefore, manufacturers require an automated system to perform online defect detection which may occur during the printing. Hence, this project proposes an algorithm for automated visual PCB inspection that is able to automatically detect and locate any defect on a PCB laminate. Numerous approaches have been discussed in the literature so far but this work introduces a technique that is based on wavelets and multiresolution analysis. The inspection could be speed up by introducing wavelet-based algorithm for PCB defect detection and localization. The defect is detected by utilizing wavelet-based image difference algorithm. The detected defect is essential to locate the defective area on the tested PCB image. The ultimate goal of this project is to ensure the system can perform in a real-time environment with high performance. 2002-06 Thesis http://eprints.utm.my/id/eprint/6678/ http://eprints.utm.my/id/eprint/6678/1/ZuwairieIbrahimMFKE2002.PDF application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:62378 masters Universiti Teknologi Malaysia Faculty of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Ibrahim, Zuwairie Printed circuit board inspection using wavelet-based technique
description	Malaysia is a well-known country with high quality productions in electronic manufacturing industry. One of the backbones in electronic manufacturing industry is the Printed Circuit Board (PCB) manufacturing. Current practice in PCB manufacturing requires etching. This process is irreversible. Printing, which is done before etching, caused most of the destructive defects found on the PCB. Once the laminate is etched, the defects, if exist would cause the PCB laminate to be of no use. Due to the fatigue and speed requirement, manual inspection is ineffective in inspecting every printed laminate. Therefore, manufacturers require an automated system to perform online defect detection which may occur during the printing. Hence, this project proposes an algorithm for automated visual PCB inspection that is able to automatically detect and locate any defect on a PCB laminate. Numerous approaches have been discussed in the literature so far but this work introduces a technique that is based on wavelets and multiresolution analysis. The inspection could be speed up by introducing wavelet-based algorithm for PCB defect detection and localization. The defect is detected by utilizing wavelet-based image difference algorithm. The detected defect is essential to locate the defective area on the tested PCB image. The ultimate goal of this project is to ensure the system can perform in a real-time environment with high performance.
format	Thesis
qualification_level	Master's degree
author	Ibrahim, Zuwairie
author_facet	Ibrahim, Zuwairie
author_sort	Ibrahim, Zuwairie
title	Printed circuit board inspection using wavelet-based technique
title_short	Printed circuit board inspection using wavelet-based technique
title_full	Printed circuit board inspection using wavelet-based technique
title_fullStr	Printed circuit board inspection using wavelet-based technique
title_full_unstemmed	Printed circuit board inspection using wavelet-based technique
title_sort	printed circuit board inspection using wavelet-based technique
granting_institution	Universiti Teknologi Malaysia
granting_department	Faculty of Electrical Engineering
publishDate	2002
url	http://eprints.utm.my/id/eprint/6678/1/ZuwairieIbrahimMFKE2002.PDF
_version_	1747814686639783936

Printed circuit board inspection using wavelet-based technique

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