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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 27, Iss. 1 — Jan. 1, 2010
  • pp: 69–75

Estimation of the phase derivative using an adaptive window spectrogram

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


JOSA A, Vol. 27, Issue 1, pp. 69-75 (2010)
http://dx.doi.org/10.1364/JOSAA.27.000069


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Abstract

The paper introduces an adaptive-window-spectrogram–based method to directly estimate the phase derivative from a single fringe pattern. The proposed method relies on estimating the phase derivative using spectrogram peak detection 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. The method’s applicability to phase derivative estimation is demonstrated using simulation and experimental results.

© 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:
Holographic Interferometry

History
Original Manuscript: July 1, 2009
Revised Manuscript: September 30, 2009
Manuscript Accepted: November 12, 2009
Published: December 9, 2009

Citation
G. Rajshekhar, Sai Siva Gorthi, and Pramod Rastogi, "Estimation of the phase derivative using an adaptive window spectrogram," J. Opt. Soc. Am. A 27, 69-75 (2010)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-27-1-69

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