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Proceedings Paper

A technique of optical pattern recognition with rotational invariance
Author(s): N. I. Toto-Arellano; G. Camacho-Basilio
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Paper Abstract

The optical pattern recognition system of joint transform correlation has a disadvantage. It doesn't work under rotation of test object. In this work we show the experimental results of a technique for rotational invariant optical recognition which is based on a ring detector acting as filter. This correlator has the disadvantage of not present scale invariance of the objects under test. In addition, a theoretical analysis and simulation results are illustrated here with the use of an advanced mathematics software package.

Paper Details

Date Published: 21 October 2004
PDF: 4 pages
Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); doi: 10.1117/12.591967
Show Author Affiliations
N. I. Toto-Arellano, Benemerita Univ. Autonoma de Puebla (Mexico)
G. Camacho-Basilio, Benemerita Univ. Autonoma de Puebla (Mexico)


Published in SPIE Proceedings Vol. 5622:
5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications

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