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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 20 — Oct. 15, 2010
  • pp: 3526–3528

Fringe-pattern denoising based on discrete topological analysis

Yanhua Li, Shiliang Qu, Xiangjun Chen, and Zhiyong Luo  »View Author Affiliations


Optics Letters, Vol. 35, Issue 20, pp. 3526-3528 (2010)
http://dx.doi.org/10.1364/OL.35.003526


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Abstract

We present an effective way to solve the denoising problem of fringe patterns in optics interferometry. The proposed method is based on the topological analysis of an appropriate cost function. To overcome the blurring drawback of the linear diffusion approach, the linear diffusion coefficient at each edge is perturbed successively. The total variation of a discrete cost function can be taken as an indicator function to pick out the most suitable edges of pixels at which the diffusion coefficients are to be perturbed. Then, a filtered image can be obtained by using selected diffusion coefficients associated to the edges. We demonstrate the performance of the proposed method via application to numerically simulated and experimentally obtained fringe patterns.

© 2010 Optical Society of America

OCIS Codes
(070.6110) Fourier optics and signal processing : Spatial filtering
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(100.3008) Image processing : Image recognition, algorithms and filters

ToC Category:
Image Processing

History
Original Manuscript: July 20, 2010
Revised Manuscript: September 16, 2010
Manuscript Accepted: September 20, 2010
Published: October 15, 2010

Citation
Yanhua Li, Shiliang Qu, Xiangjun Chen, and Zhiyong Luo, "Fringe-pattern denoising based on discrete topological analysis," Opt. Lett. 35, 3526-3528 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-20-3526


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