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Proceedings Paper

Image enhancements using wavelet preprocessing for printed circuit board classification
Author(s): Hanseok Ko; F. Berko; Brian A. Telfer; Joseph P. Garcia
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Paper Abstract

Image enhancement techniques based on a composition of uncorrelated subband coefficients called `wavelet' features are demonstrated on printed circuit board images for fault detection objectives as applied to an automated inspection system. The wavelets are used to preprocess the imagery for enhancing and filling the holes on the images of the conducting connections. Several image enhancement techniques are demonstrated and described to make visual performance comparisons.

Paper Details

Date Published: 6 April 1995
PDF: 8 pages
Proc. SPIE 2491, Wavelet Applications II, (6 April 1995); doi: 10.1117/12.205413
Show Author Affiliations
Hanseok Ko, Dept. of Defense (United States)
F. Berko, Dept. of Defense (United States)
Brian A. Telfer, Naval Surface Warfare Ctr. (United States)
Joseph P. Garcia, Naval Surface Warfare Ctr. (United States)

Published in SPIE Proceedings Vol. 2491:
Wavelet Applications II
Harold H. Szu, Editor(s)

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