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Proceedings Paper

Application of Fourier transform profilometry to the recognition of 3-D objects
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Paper Abstract

Fourier transform profilometry, a well-known technique to obtain images of three-dimensional (3-D) objects, is used to achieve a real-time optical recognition of 3-D objects. A distorted grating pattern, that carries all the 3-D information of the object, is obtained from the projection of a regular fringe pattern onto the 3-D object surface. The analysis of such patterns is the basis of the optical method for recognizing 3-D objects in real time. The performance of the technique is demonstrated in two different types of correlators: the joint transform correlator and the classical convergent correlator. The proposed method is extended to the rotation-invariant and scale-invariant 3-D optical recognition. As is shown, the whole experimental setup can be constructed with simple equipment. Some experimental results, which demonstrate the ability of the method, are presented.

Paper Details

Date Published: 30 September 2003
PDF: 8 pages
Proc. SPIE 5227, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies, (30 September 2003); doi: 10.1117/12.519789
Show Author Affiliations
Jose J. Esteve-Taboada, Univ. de Valencia (Spain)
Javier Garcia, Univ. de Valencia (Spain)
Carlos Ferreira, Univ. de Valencia (Spain)

Published in SPIE Proceedings Vol. 5227:
Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies
Ovidiu Iancu; Adrian Manea; Dan Cojoc, Editor(s)

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