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Proceedings Paper

Shape measurement by means of fringe projection
Author(s): D. Arroyo Almanza; B. Barrientos García; R. Martínez-Celorio
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Paper Abstract

In this work, a study for the measurement of a nonspecular object shape by using the fringe pattern projection technique is presented. This study uses only one modulating grating, unlike the moire projection method, which uses two modulating gratings. The proposed method was tested with several objects, and the results will be shown at the end of the presented work. To obtain the modulating phase of the generated fringe patterns, we used step phase shifting algorithms and the Fourier transform method. The obtained results show that the proposed method has an acceptable precision with errors around 0.5%.

Paper Details

Date Published: 19 May 2007
PDF: 8 pages
Proc. SPIE 6422, Sixth Symposium Optics in Industry, 64220L (19 May 2007); doi: 10.1117/12.742577
Show Author Affiliations
D. Arroyo Almanza, Ctr. de Investigaciones en Óptica (Mexico)
B. Barrientos García, Ctr. de Investigaciones en Óptica (Mexico)
R. Martínez-Celorio, Univ. de Guanajuato (Mexico)


Published in SPIE Proceedings Vol. 6422:
Sixth Symposium Optics in Industry

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