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Optical Engineering

Optical recognition of three-dimensional objects with scale invariance using a classical convergent correlator
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Paper Abstract

We present a real-time method for recognizing threedimensional (3-D) objects with scale invariance. The 3-D information of the objects is codified in deformed fringe patterns using the Fourier transform profilometry technique and is correlated using a classical convergent correlator. The scale invariance property is achieved using two different approaches: the Mellin radial harmonic decomposition and the logarithmic radial harmonic filter. Thus, the method is invariant for changes in the scale of the 3-D target within a defined interval of scale factors. Experimental results show the utility of the proposed method.

Paper Details

Date Published: 1 June 2002
PDF: 7 pages
Opt. Eng. 41(6) doi: 10.1117/1.1476326
Published in: Optical Engineering Volume 41, Issue 6
Show Author Affiliations
Jose J. Esteve-Taboada, Univ. de Valencia (Spain)
Javier Garcia, Univ. de Valencia (Spain)
Carlos Ferreira, Univ. de Valencia (Spain)

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