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Phase recovery from a single interferogram with closed fringes by phase unwrapping |
Applied Optics, Vol. 50, Issue 1, pp. 22-27 (2011)
http://dx.doi.org/10.1364/AO.50.000022
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Abstract
We describe a new algorithm for phase determination from a single interferogram with closed fringes based on an unwrapping procedure. Here we use bandpass filtering in the Fourier domain, obtaining two wrapped phases with sign changes corresponding to the orientation of the applied filters. An unwrapping scheme that corrects the sign ambiguities by comparing the local derivatives is then proposed. This can be done, assuming that the phase derivatives do not change abruptly among adjacent areas as occurs with smooth continuous phase maps. The proposed algorithm works fast and is robust against noise, as demonstrated in experimental and simulated data.
© 2010 Optical Society of America
OCIS Codes
(100.0100) Image processing : Image processing
(100.2650) Image processing : Fringe analysis
(100.5070) Image processing : Phase retrieval
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(100.5088) Image processing : Phase unwrapping
ToC Category:
Image Processing
History
Original Manuscript: June 1, 2010
Revised Manuscript: November 5, 2010
Manuscript Accepted: November 6, 2010
Published: December 21, 2010
Citation
Jesús Muñoz-Maciel, Francisco J. Casillas-Rodríguez, Miguel Mora-González, Francisco G. Peña-Lecona, Víctor M. Duran-Ramírez, and Gilberto Gómez-Rosas, "Phase recovery from a single interferogram with closed fringes by phase unwrapping," Appl. Opt. 50, 22-27 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-1-22
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