Comparative analysis on some filters for wrapped phase maps
Applied Optics, Vol. 46, Issue 30, pp. 7412-7418 (2007)
http://dx.doi.org/10.1364/AO.46.007412
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Abstract
Some effective filtering methods for wrapped phase maps, a regularized phase-tracking method (RPT) without the regularization term, a multiple-parameter least-square method (MPLS), a windowed Fourier ridges method (WFR), an autocorrelation function method (ACF), and a sine∕cosine average filter (SCAF), are analyzed in order to establish their transversal relationship. The analysis shows that principles of the RPT, MPLS, WFR, and ACF are equivalent and the SCAF also leads to the WFR by some extension, which elegantly unifies all these methods for filtering unwrapped phase maps.
© 2007 Optical Society of America
OCIS Codes
(100.2650) Image processing : Fringe analysis
(100.5070) Image processing : Phase retrieval
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(120.3940) Instrumentation, measurement, and metrology : Metrology
(100.5088) Image processing : Phase unwrapping
ToC Category:
Image Processing
History
Original Manuscript: May 25, 2007
Revised Manuscript: August 25, 2007
Manuscript Accepted: August 28, 2007
Published: October 10, 2007
Citation
Qian Kemao, Le Tran Hoai Nam, Lin Feng, and Seah Hock Soon, "Comparative analysis on some filters for wrapped phase maps," Appl. Opt. 46, 7412-7418 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-30-7412
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