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Proceedings Paper

Automatic real-time generalized phase-shifting interferometry to process interferograms with spatio-temporal visibility
Author(s): Rigoberto Juarez-Salazar; Carlos Robledo-Sanchez; Cruz Meneses-Fabian; Gustavo Rodriguez-Zurita; Fermin Guerrero Sanchez; Antonio Barcelata-Pinzon
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Paper Abstract

A faster and robust generalized phase-shifting interferometry suitable to automatic real-time applications is presented. The proposal is based on the parameter estimation by the least squares method. The algorithm can retrieve the wrapped phase from two or more phase shifted interferograms with unknown phase steps between 0 and π rad. Moreover, by the multiple or single parameter estimation approach of this algorithm, interferograms with variable visibility both spatial and temporally can be processed, overcoming the restrictions and drawbacks from usual variable spatial visibility approaches. By both computer simulation and a optical experiment, the algorithm's feasibility is illustrated.

Paper Details

Date Published: 18 November 2013
PDF: 7 pages
Proc. SPIE 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications, 878542 (18 November 2013); doi: 10.1117/12.2026103
Show Author Affiliations
Rigoberto Juarez-Salazar, Benemérita Univ. Autónoma de Puebla (Mexico)
Carlos Robledo-Sanchez, Benemérita Univ. Autónoma de Puebla (Mexico)
Cruz Meneses-Fabian, Benemérita Univ. Autónoma de Puebla (Mexico)
Gustavo Rodriguez-Zurita, Benemérita Univ. Autónoma de Puebla (Mexico)
Fermin Guerrero Sanchez, Benemérita Univ. Autónoma de Puebla (Mexico)
Antonio Barcelata-Pinzon, Benemérita Univ. Autónoma de Puebla (Mexico)


Published in SPIE Proceedings Vol. 8785:
8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications
Manuel Filipe P. C. Martins Costa, Editor(s)

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