Automatic real-time generalized phase-shifting interferometry to process interferograms with spatio-temporal visibility

Rigoberto Juarez-Salazar; Carlos Robledo-Sanchez; Cruz Meneses-Fabian; Gustavo Rodriguez-Zurita; Fermin Guerrero Sanchez; Antonio Barcelata-Pinzon

doi:10.1117/12.2026103

18 November 2013 Automatic real-time generalized phase-shifting interferometry to process interferograms with spatio-temporal visibility

Rigoberto Juarez-Salazar, Carlos Robledo-Sanchez, Cruz Meneses-Fabian, Gustavo Rodriguez-Zurita, Fermin Guerrero Sanchez, Antonio Barcelata-Pinzon

Author Affiliations +

Proceedings Volume 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications; 878542 (2013) https://doi.org/10.1117/12.2026103
Event: 8th Ibero American Optics Meeting/11th Latin American Meeting on Optics, Lasers, and Applications, 2013, Porto, Portugal

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.

Citation Download Citation

Rigoberto Juarez-Salazar, Carlos Robledo-Sanchez, Cruz Meneses-Fabian, Gustavo Rodriguez-Zurita, Fermin Guerrero Sanchez, and Antonio Barcelata-Pinzon "Automatic real-time generalized phase-shifting interferometry to process interferograms with spatio-temporal visibility", Proc. SPIE 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications, 878542 (18 November 2013); https://doi.org/10.1117/12.2026103

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available