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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 20 — Oct. 15, 2013
  • pp: 4124–4127

Enhancement strategy based on three-layer filtering for a single fringe pattern

Yi Zhou and Hongguang Li  »View Author Affiliations


Optics Letters, Vol. 38, Issue 20, pp. 4124-4127 (2013)
http://dx.doi.org/10.1364/OL.38.004124


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Abstract

The quality enhancement of a single fringe pattern is a challenging task in speckle interferometry. Fringe patterns suffer greatly from three adverse variations (nonuniform background, speckle noise, and intensity modulation). In this Letter, we propose a three-layer filtering strategy for noisy fringe patterns. The first layer is aimed at high-frequency speckle noises and low-frequency background. The second layer is for remaining speckle noises distributed in the middle-frequency band. The third layer will further implement quality enhancement by a phase-recovery technique. The proposed strategy is quantitatively evaluated by different indexes and verified to be effective through numerous comparative experiments.

© 2013 Optical Society of America

OCIS Codes
(100.2650) Image processing : Fringe analysis
(100.2980) Image processing : Image enhancement
(100.5070) Image processing : Phase retrieval

ToC Category:
Image Processing

History
Original Manuscript: July 30, 2013
Revised Manuscript: September 4, 2013
Manuscript Accepted: September 6, 2013
Published: October 9, 2013

Citation
Yi Zhou and Hongguang Li, "Enhancement strategy based on three-layer filtering for a single fringe pattern," Opt. Lett. 38, 4124-4127 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-20-4124


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