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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Stephen A. Burns
  • Vol. 24, Iss. 1 — Jan. 1, 2007
  • pp: 25–33

Blind phase shift estimation in phase-shifting interferometry

Hongwei Guo, Yingjie Yu, and Mingyi Chen  »View Author Affiliations

JOSA A, Vol. 24, Issue 1, pp. 25-33 (2007)

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A blind phase shift estimation algorithm that allows simultaneous calculation of phases and phase shifts from three or more interferograms is presented. In phase-shifting interferometry, the phase shift errors introduce specific correlations between the calculated background intensity distribution and the fringe component. These correlations can be measured with a cross-power spectrum. By minimization of an objective function based on this cross-power spectrum, the actual phase shifts are estimated and used for phase recovery. The validity of this algorithm is verified by both the numerical simulation and the experiment results.

© 2006 Optical Society of America

OCIS Codes
(100.2650) Image processing : Fringe analysis
(100.5070) Image processing : Phase retrieval
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement

ToC Category:
Image Processing

Original Manuscript: February 15, 2006
Revised Manuscript: June 15, 2006
Manuscript Accepted: July 27, 2006

Hongwei Guo, Yingjie Yu, and Mingyi Chen, "Blind phase shift estimation in phase-shifting interferometry," J. Opt. Soc. Am. A 24, 25-33 (2007)

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