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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 23 — Nov. 5, 2012
  • pp: 26037–26049

Phase-shifting algorithm by use of Hough transform

Hongwei Guo and Beiting Lü  »View Author Affiliations

Optics Express, Vol. 20, Issue 23, pp. 26037-26049 (2012)

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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

Original Manuscript: August 27, 2012
Revised Manuscript: October 14, 2012
Manuscript Accepted: October 23, 2012
Published: November 2, 2012

Hongwei Guo and Beiting Lü, "Phase-shifting algorithm by use of Hough transform," Opt. Express 20, 26037-26049 (2012)

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