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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 33 — Nov. 20, 2011
  • pp: 6225–6233

Reliable phase unwrapping algorithm based on rotational and direct compensators

Samia Heshmat, Satoshi Tomioka, and Shusuke Nishiyama  »View Author Affiliations


Applied Optics, Vol. 50, Issue 33, pp. 6225-6233 (2011)
http://dx.doi.org/10.1364/AO.50.006225


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Abstract

Phase unwrapping still plays an important role in many data-processing chains based on phase information. Here, we introduce a new phase unwrapping approach for noisy wrapped phase maps of continuous objects to improve the accuracy and computational time requirements of phase unwrapping using a rotational compensator (RC) method. The proposed algorithm is based on compensating the singularity of discontinuity sources. It uses direct compensation for adjoining singular point (SP) pairs and uses RC for other SP pairs. The performance of the proposed method is tested through both simulated and real wrapped phase data. The proposed algorithm is faster than the original algorithm with the RC and has proved efficiency compared to other phase unwrapping methods.

© 2011 Optical Society of America

OCIS Codes
(030.4280) Coherence and statistical optics : Noise in imaging systems
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(100.3175) Image processing : Interferometric imaging
(110.5086) Imaging systems : Phase unwrapping
(100.5088) Image processing : Phase unwrapping

ToC Category:
Image Processing

History
Original Manuscript: August 5, 2011
Revised Manuscript: October 2, 2011
Manuscript Accepted: October 3, 2011
Published: November 16, 2011

Citation
Samia Heshmat, Satoshi Tomioka, and Shusuke Nishiyama, "Reliable phase unwrapping algorithm based on rotational and direct compensators," Appl. Opt. 50, 6225-6233 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-33-6225

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