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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. 31, Iss. 9 — Sep. 1, 2014
  • pp: 1919–1922

Simultaneous estimation of phase and phase derivative using a difference equation representation of the interference field

Rishikesh Kulkarni and Pramod Rastogi  »View Author Affiliations


JOSA A, Vol. 31, Issue 9, pp. 1919-1922 (2014)
http://dx.doi.org/10.1364/JOSAA.31.001919


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Abstract

A computationally efficient technique for fringe analysis in digital holographic interferometry using a difference equation representation of the interference field is presented. The spatially varying coefficient of the difference equation is estimated accurately by constraining it in the subspace spanned by the linearly independent basis functions. The coefficient estimated provides an accurate estimation of the interference phase derivative and enables the linear estimation of the interference field. Thereupon, the interference phase is estimated using a simple unwrapping algorithm. The performance of the proposed method is validated with the help of simulation and experimental results.

© 2014 Optical Society of America

OCIS Codes
(120.2880) Instrumentation, measurement, and metrology : Holographic interferometry
(120.4290) Instrumentation, measurement, and metrology : Nondestructive testing
(090.1995) Holography : Digital holography

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: June 13, 2014
Manuscript Accepted: July 10, 2014
Published: August 6, 2014

Citation
Rishikesh Kulkarni and Pramod Rastogi, "Simultaneous estimation of phase and phase derivative using a difference equation representation of the interference field," J. Opt. Soc. Am. A 31, 1919-1922 (2014)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-31-9-1919

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