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Phase-shifting algorithm by use of Hough transform |
Optics Express, Vol. 20, Issue 23, pp. 26037-26049 (2012)
http://dx.doi.org/10.1364/OE.20.026037
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Abstract
This paper presents a phase-shifting algorithm based on Hough transform for sinusoidal curves. Firstly, the background intensities of phase-shifting fringe patterns are removed by calculating their differences, thus we get purely sinusoidal intensity data for each pixel; and then we implement Hough transform to the intensity difference data of each pixel. As a result, the sinusoidal parameters, including phase and amplitude, of each pixel are extracted. The simulation and experimental results demonstrate that this algorithm enables eliminating the impacts of some gross errors such as saturation of camera and impulse noise in fringe patterns, and exactly recovering the phase map from fringe patterns.
© 2012 OSA
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
ToC Category:
Image Processing
History
Original Manuscript: August 27, 2012
Revised Manuscript: October 14, 2012
Manuscript Accepted: October 23, 2012
Published: November 2, 2012
Citation
Hongwei Guo and Beiting Lü, "Phase-shifting algorithm by use of Hough transform," Opt. Express 20, 26037-26049 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-23-26037
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