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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 21, Iss. 12 — Dec. 1, 2004
  • pp: 2283–2291

Speckle removal using a maximum-likelihood technique with isoline gray-level regularization

Nicolas Bertaux, Yann Frauel, Philippe Réfrégier, and Bahram Javidi  »View Author Affiliations


JOSA A, Vol. 21, Issue 12, pp. 2283-2291 (2004)
http://dx.doi.org/10.1364/JOSAA.21.002283


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Abstract

We propose a method based on the maximum-likelihood technique for removing speckle patterns that plague coherent images. The proposed method is designed for images whose gray levels vary continuously in space. The image model is based on a lattice of nodes corresponding to vertices of triangles in which the gray level of each pixel is produced by linear interpolation. A constraint on isoline gray levels is introduced to regularize the solution.

© 2004 Optical Society of America

OCIS Codes
(030.0030) Coherence and statistical optics : Coherence and statistical optics
(030.4280) Coherence and statistical optics : Noise in imaging systems
(100.0100) Image processing : Image processing
(100.3010) Image processing : Image reconstruction techniques

History
Original Manuscript: February 10, 2004
Revised Manuscript: June 14, 2004
Manuscript Accepted: June 14, 2004
Published: December 1, 2004

Citation
Nicolas Bertaux, Yann Frauel, Philippe Réfrégier, and Bahram Javidi, "Speckle removal using a maximum-likelihood technique with isoline gray-level regularization," J. Opt. Soc. Am. A 21, 2283-2291 (2004)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-21-12-2283


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References

  1. H. J. Caulfield, Handbook of Optical Holography (Academic, London, 1979).
  2. C. Oliver, S. Quegan, Understanding Synthetic Aperture Radar Images (Artech House, Boston, Mass., 1998).
  3. M. Françon, Laser Speckle and Application in Optics (Academic, New York, 1979).
  4. U. Schnars, W. P. O. Jüptner, “Direct recording of holograms by a CCD target and numerical reconstruction,” Appl. Opt. 33, 179–181 (1994). [CrossRef] [PubMed]
  5. Y. Frauel, E. Tajahuerce, M.-A. Castro, B. Javidi, “Distortion-tolerant three-dimensional object recognition with digital holography,” Appl. Opt. 40, 3887–3893 (2001). [CrossRef]
  6. H. L. Van Trees, Detection Estimation and Modulation Theory (Wiley, New York, 1968).

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