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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 33 — Nov. 20, 2011
  • pp: 6214–6224

Quality-guided phase unwrapping technique: comparison of quality maps and guiding strategies

Ming Zhao, Lei Huang, Qican Zhang, Xianyu Su, Anand Asundi, and Qian Kemao  »View Author Affiliations

Applied Optics, Vol. 50, Issue 33, pp. 6214-6224 (2011)

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Quality-guided phase unwrapping is a widely used technique with different quality definitions and guiding strategies reported. It is thus necessary to do a detailed comparison of these approaches to choose the optimal quality map and guiding strategy. For quality maps, in the presence of noise, transform-based methods are found to be the best choice. However in the presence of discontinuities, phase unwrapping is itself unresolved and hence quality-guided phase unwrapping is not sufficient. For guiding strategies, classical, two-section, and stack-chain guiding strategies are chosen for comparison. If accuracy is the foremost criterion then the classical guiding strategy with a data structure of indexed interwoven linked list is best. If speed is of essence then the stack-chain guiding strategy is the one to use.

© 2011 Optical Society of America

OCIS Codes
(100.2650) Image processing : Fringe analysis
(100.5088) Image processing : Phase unwrapping

ToC Category:
Image Processing

Original Manuscript: May 31, 2011
Revised Manuscript: August 19, 2011
Manuscript Accepted: August 20, 2011
Published: November 16, 2011

Ming Zhao, Lei Huang, Qican Zhang, Xianyu Su, Anand Asundi, and Qian Kemao, "Quality-guided phase unwrapping technique: comparison of quality maps and guiding strategies," Appl. Opt. 50, 6214-6224 (2011)

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