Miscalibration detection in phase-shifting algorithms by applying radon transform

Tania A. Ramirez-Delreal; Miguel Mora-González; Marco A. Paz; Jesús Muñoz-Maciel; Ulises H. Rodriguez-Marmolejo

doi:10.1117/12.2051680

1 May 2014 Miscalibration detection in phase-shifting algorithms by applying radon transform

Tania A. Ramirez-Delreal, Miguel Mora-González, Marco A. Paz, Jesús Muñoz-Maciel, Ulises H. Rodriguez-Marmolejo

Proceedings Volume 9131, Optical Modelling and Design III; 91311G (2014) https://doi.org/10.1117/12.2051680
Event: SPIE Photonics Europe, 2014, Brussels, Belgium

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.

Citation Download Citation

Tania A. Ramirez-Delreal, Miguel Mora-González, Marco A. Paz, Jesús Muñoz-Maciel, and Ulises H. Rodriguez-Marmolejo "Miscalibration detection in phase-shifting algorithms by applying radon transform", Proc. SPIE 9131, Optical Modelling and Design III, 91311G (1 May 2014); https://doi.org/10.1117/12.2051680

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KEYWORDS

Radon transform

Phase shifts

Phase shifting

Phase measurement

Detection and tracking algorithms

Phase interferometry

Fringe analysis

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