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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 44, Iss. 23 — Aug. 10, 2005
  • pp: 4814–4821

Phase extraction from a single fringe pattern based on guidance of an extreme map

Chenggen Quan, Cho Jui Tay, Fujun Yang, and Xiaoyuan He  »View Author Affiliations


Applied Optics, Vol. 44, Issue 23, pp. 4814-4821 (2005)
http://dx.doi.org/10.1364/AO.44.004814


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Abstract

A method for automatic phase extraction from a single fringe pattern based on the guidance of an extreme map is introduced. The method uses an adaptive weighted filter to reduce noise and enhance contrast and to locate the fringe extremes. Wrapped phase values are calculated by use of an arccosine function obtained from the extreme map. With this method, wrapped phase values can be efficiently demodulated from a single fringe pattern without the need for assigning fringe order or interpolating fractional fringe order. The validity of the method is demonstrated by use of closed-fringe patterns generated by digital speckle interferometry.

© 2005 Optical Society of America

OCIS Codes
(070.6110) Fourier optics and signal processing : Spatial filtering
(100.2650) Image processing : Fringe analysis
(100.5010) Image processing : Pattern recognition
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(120.6160) Instrumentation, measurement, and metrology : Speckle interferometry

History
Original Manuscript: August 18, 2004
Revised Manuscript: November 24, 2004
Manuscript Accepted: January 18, 2005
Published: August 10, 2005

Citation
Chenggen Quan, Cho Jui Tay, Fujun Yang, and Xiaoyuan He, "Phase extraction from a single fringe pattern based on guidance of an extreme map," Appl. Opt. 44, 4814-4821 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-23-4814

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