1 October 1991 Elliptical coordinate transformed phase-only filter for shift and scale invariant pattern recognition
Author Affiliations +
Proceedings Volume 1574, Intl Colloquium on Diffractive Optical Elements; (1991) https://doi.org/10.1117/12.50112
Event: International Colloquium on Diffractive Optical Elements, 1991, Szklarska Poreba, Poland
Abstract
In a computer experiment we prove shift and scale invariant pattern recognition abilities of an elliptic coordinate transformed phase-only filter. The filter is built in the following way: from the classical matched filter we take the phase component only and then the elliptic coordinate transformation is made. We analyze performance of the filter for different semiaxes ratios and on-axis stops of several diameters. Discrimination ability of the filter is calculated. The filter allows good recognition of objects with change of scale by a factor of 1.5.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Javier Garcia, Carlos Ferreira, Tomasz Szoplik, "Elliptical coordinate transformed phase-only filter for shift and scale invariant pattern recognition", Proc. SPIE 1574, Intl Colloquium on Diffractive Optical Elements, (1 October 1991); doi: 10.1117/12.50112; https://doi.org/10.1117/12.50112
PROCEEDINGS
8 PAGES


SHARE
Back to Top