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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 20 — Oct. 15, 2009
  • pp: 3151–3153

Adaptive window Wigner–Ville-distribution-based method to estimate phase derivative from optical fringes

G. Rajshekhar, Sai Siva Gorthi, and Pramod Rastogi  »View Author Affiliations


Optics Letters, Vol. 34, Issue 20, pp. 3151-3153 (2009)
http://dx.doi.org/10.1364/OL.34.003151


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Abstract

We introduce an adaptive window Wigner–Ville-distribution-based method to directly estimate the phase derivative from a single fringe pattern. In the proposed method, the phase derivative is estimated by using the peak detection of the pseudo-Wigner–Ville distribution for a set of different window lengths. Then the optimal window length is selected from the set by resolving the estimator’s bias variance trade-off, using the intersection of confidence intervals rule. Finally, the phase derivative estimate corresponding to the optimum window is selected. Simulation and experimental results are presented to demonstrate the method’s applicability for the phase derivative estimation.

© 2009 Optical Society of America

OCIS Codes
(090.2880) Holography : Holographic interferometry
(120.2880) Instrumentation, measurement, and metrology : Holographic interferometry
(090.1995) Holography : Digital holography

ToC Category:
Holography

History
Original Manuscript: July 6, 2009
Revised Manuscript: September 9, 2009
Manuscript Accepted: September 18, 2009
Published: October 9, 2009

Citation
G. Rajshekhar, Sai Siva Gorthi, and Pramod Rastogi, "Adaptive window Wigner-Ville-distribution-based method to estimate phase derivative from optical fringes," Opt. Lett. 34, 3151-3153 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-20-3151

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