Phase demodulation of interferograms with open or closed fringes

Mariano Rivera

doi:10.1117/12.611670

14 February 2005 Phase demodulation of interferograms with open or closed fringes

Mariano Rivera

Proceedings Volume 5776, Eighth International Symposium on Laser Metrology; (2005) https://doi.org/10.1117/12.611670
Event: Eighth International Conference on Laser Metrology, 2005, Merida, Mexico

Abstract

Analysis of fringe patterns with partial-field and/or closed fringes is still a challenging problem that requires the development of robust methods. This paper presents a method for fringe pattern analysis with those characteristics. The method is initially introduced as a phase refinement process for computed coarse phases, as those obtained from partial-field patterns with a full-field method for open fringes analysis. Based on the phase refinement method, it is proposed a propagative scheme for phase retrieval from closed-fringe interferograms.

Citation Download Citation

Mariano Rivera "Phase demodulation of interferograms with open or closed fringes", Proc. SPIE 5776, Eighth International Symposium on Laser Metrology, (14 February 2005); https://doi.org/10.1117/12.611670

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