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Proceedings Paper

Fringe pattern correlator for three-dimensional object recognition using multiplex color grating
Author(s): Nobukazu Yoshikawa
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Paper Abstract

A fringe pattern correlator (FPC) for three-dimensional (3D) object recognition is developed using a spatial frequency multiplex color grating (SFMCG) to avoid phase ambiguity problem. The SFMCG consists of multiple color gratings with different carrier frequency. When the SFMCG is projected onto a 3D object, a color deformed grating pattern modulated by 3D shapes is obtained. Using color decomposition techniques, multiple monochromatic deformed grating patterns can be extracted from the color deformed grating pattern. Because the FPC in different sensitivity is easily executed using these monochromatic deformed grating patterns, exact 3D object recognition can be performed.

Paper Details

Date Published: 8 May 2001
PDF: 4 pages
Proc. SPIE 4416, Optical Engineering for Sensing and Nanotechnology (ICOSN 2001), (8 May 2001); doi: 10.1117/12.426997
Show Author Affiliations
Nobukazu Yoshikawa, Musashi Institute of Technology (Japan)


Published in SPIE Proceedings Vol. 4416:
Optical Engineering for Sensing and Nanotechnology (ICOSN 2001)
Koichi Iwata, Editor(s)

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