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Proceedings Paper

Stereometric matching using Gabor functions versus structured light-shape detection methods
Author(s): Jerzy M. Woznicki; Marcin Zapendowski
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Paper Abstract

The most important problem in stereometry is to establish a correspondence between the points on two images representing different views on the same scene. We have developed an algorithm which avoids some disadvantages of previous approaches to this problem. Our approach was based on matching of correlation of some regions from both images. We use a Gabor representation of the images. We define regions on both images and assign the vectors of coefficients of Gabor functions to all those regions. Those vectors are used for comparing of the regions. We adjust an accuracy of matching using local phase information from the coefficients. We also measure the diameter of correlation peek near the region and we increase the diameter of the region if it is smaller than this diameter. In this way we avoid a problem of large areas of the same texture. We also propose implementation of this algorithm in a real time system. The optical method is suggested for computing coefficients of (iabor functions in that system.

Paper Details

Date Published: 17 July 1996
PDF: 10 pages
Proc. SPIE 2860, Laser Interferometry VIII: Techniques and Analysis, (17 July 1996); doi: 10.1117/12.276327
Show Author Affiliations
Jerzy M. Woznicki, Warsaw Univ. of Technology (Poland)
Marcin Zapendowski, Warsaw Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 2860:
Laser Interferometry VIII: Techniques and Analysis
Malgorzata Kujawinska; Ryszard J. Pryputniewicz; Mitsuo Takeda, Editor(s)

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