Universiti Teknologi Malaysia Institutional Repository

A noise elimination procedure for wavelet-based printed circuit board inspection system

Ibrahim, Zuwairie and Al-Attas, Syed Abdul Rahman and Onot, Osamu and Mohd Mokji, Musa (2004) A noise elimination procedure for wavelet-based printed circuit board inspection system. In: 2004 5th Asian Control Conference. IEEE, USA, pp. 875-880. ISBN 0780388739

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Official URL: http://ascc2004.ee.mu.oz.au/proceedings/papers/P12...

Abstract

Image difference operation is fkequently used in automated printed circuit board (PCB) inspection system as well as in many other image processing applications. The previously proposed wavelet-based PCB inspection approach also incorporated the point-to-point image difference operation as part of its algorithm. Unfortunately, during the implementation, this operation brings along the unwanted noise due to misalignment and uneven binarization. Thus, this paper proposes a method to eliminate, if possible, or to reduce as much as possible such noise during the computation of defect detection. The results of applying the proposed method showed a significant improvement during the real-time inspection of printed circuit boards

Item Type:Book Section
Additional Information:ISBN: 0780388739 ; 2004 5th Asian Control Conference; 20-23 July 2004, Melbourne.
Uncontrolled Keywords:algorithms, computer simulation, computer software, fourier transforms, image processing, inspection, signal interference, spurious signal noise, wavelet transforms, defect detection, image subtraction, inspection systems, noise elimination, printed circuit boards
Subjects:Q Science > QA Mathematics
T Technology > TR Photography
Divisions:Electrical Engineering
ID Code:9822
Deposited By: Ms Zalinda Shuratman
Deposited On:29 Mar 2010 02:34
Last Modified:09 Mar 2011 01:09

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