Local frequency estimation for the fringe pattern with a spatial carrier: principle and applications
Applied Optics, Vol. 46, Issue 7, pp. 1057-1065 (2007)
http://dx.doi.org/10.1364/AO.46.001057
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Abstract
A local frequency estimation approach for the fringe pattern with a spatial carrier by which the 2D spatial frequencies at a certain pixel are estimated from its neighborhood is presented. The applications of this approach in the fringe pattern analyses are also introduced. First, a 2D spatial carrier phase-shifting algorithm is derived. With it the detuning errors induced by frequency mismatching are avoided, and the stronger phase deformations can be successfully coped with. Second, a novel aperture extrapolation method is developed by which the phase accuracies of the Fourier-transform method at the aperture boundaries are effectively improved.
© 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
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
History
Original Manuscript: August 30, 2006
Manuscript Accepted: October 12, 2006
Published: February 12, 2007
Citation
Hongwei Guo, Qi Yang, and Mingyi Chen, "Local frequency estimation for the fringe pattern with a spatial carrier: principle and applications," Appl. Opt. 46, 1057-1065 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-7-1057
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