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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 20 — Oct. 7, 2013
  • pp: 24385–24397

Improved generalized regularized phase tracker for demodulation of a single fringe pattern

Li Kai and Qian Kemao  »View Author Affiliations

Optics Express, Vol. 21, Issue 20, pp. 24385-24397 (2013)

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A generalized regularized phase tracker (GRPT) for demodulation of a single fringe pattern was recently proposed. It is very successful for many fringe patterns. However, the GRPT has poor performance in the area where the fringe pattern is sparse. An improved GRPT (iGRPT) with two novel improvements is proposed to overcome the problem. First, the fixed window used in the GRPT is replaced by a spatially adaptive window. Second, a background regularization term and a modulation regularization term are incorporated in the cost function. With these two improvements, the proposed iGRPT can successfully demodulate sparse fringes and thus improves the demodulation capability of the GRPT. Simulation and experimental results are presented to verify the performance of the iGRPT.

© 2013 Optical Society of America

OCIS Codes
(100.2650) Image processing : Fringe analysis
(100.5070) Image processing : Phase retrieval
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.5050) Instrumentation, measurement, and metrology : Phase measurement

ToC Category:
Image Processing

Original Manuscript: July 24, 2013
Revised Manuscript: September 24, 2013
Manuscript Accepted: September 27, 2013
Published: October 4, 2013

Li Kai and Qian Kemao, "Improved generalized regularized phase tracker for demodulation of a single fringe pattern," Opt. Express 21, 24385-24397 (2013)

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