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Proceedings Paper

Miscalibration detection in phase-shifting algorithms by applying radon transform
Author(s): Tania A. Ramirez-Delreal; Miguel Mora-González; Marco A. Paz; Jesús Muñoz-Maciel; Ulises H. Rodriguez-Marmolejo
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Paper Abstract

The phase shifting algorithms are a widespread method in the technical and scientific literature for relatively noninvasive measurements of a variety physical variables. PSI (phase-shifting interferometry) techniques consist in acquiring at least three interferograms to obtain the wrapped phase. It is important to emphasize that if these acquired intensity images are inadequate, the measurement would have an error associated. The presence of miscalibration or mechanical vibrations in an interferogram can cause an inaccurate measurement; it is possible to design a phase shifting algorithm with a better performance. The present work proposes a novel methodology in order to determine the existence of a miscalibrated interferogram in a four steps phase shifting algorithm by applying the Radon transform.

Paper Details

Date Published: 1 May 2014
PDF: 7 pages
Proc. SPIE 9131, Optical Modelling and Design III, 91311G (1 May 2014); doi: 10.1117/12.2051680
Show Author Affiliations
Tania A. Ramirez-Delreal, Univ. de Guadalajara (Mexico)
Univ. Politécnica de Aguascalientes (Mexico)
Miguel Mora-González, Univ. de Guadalajara (Mexico)
Marco A. Paz, Univ. Politécnica de Aguascalientes (Mexico)
Jesús Muñoz-Maciel, Univ. de Guadalajara (Mexico)
Ulises H. Rodriguez-Marmolejo, Univ. de Guadalajara (Mexico)
Instituto Tecnológico de Aguascalientes (Mexico)

Published in SPIE Proceedings Vol. 9131:
Optical Modelling and Design III
Frank Wyrowski; John T. Sheridan; Jani Tervo; Youri Meuret, Editor(s)

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