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