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ISRN Optics
Volume 2012 (2012), Article ID 396960, 6 pages
http://dx.doi.org/10.5402/2012/396960
Research Article

Single Frame Fringe Pattern Analysis for Phase Recovery with Analytic Signal

Laboratoire Instrumentation de Mesure et de Contrôle, Equipe Metrologie Optique et Traitement Image, Université Chouaib Doukkali, Faculté des Sciences, BP 20, El Jadida 24000, Morocco

Received 25 March 2012; Accepted 9 May 2012

Academic Editors: O. Frazao and D. Poitras

Copyright © 2012 Khalid Assid et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We consider a new application of the normalized Hilbert-Huang transform to extract directly the phase from a single fringe pattern. We present a technique to provide, with good accuracy, the phase distribution from a single interferogram without unwrapping step and this by a new exploitation of the analytic signal corresponding to each intrinsic mode function, resulting from one-dimensional empirical mode decomposition of the fringe pattern. A theoretical analysis was carried out for this technique, followed by computer simulations and a real experimental fringe pattern for verification.