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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 46, Iss. 22 — Aug. 1, 2007
  • pp: 5027–5033

Variogram-based method for contrast measurement

Luis Miguel Sanchez-Brea, Francisco Jose Torcal-Milla, and Eusebio Bernabeu  »View Author Affiliations

Applied Optics, Vol. 46, Issue 22, pp. 5027-5033 (2007)

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We present a technique for determining the contrast of an intensity distribution in the presence of additive noise and other effects, such as undesired local amplitude or offset variations. The method is based on the variogram function. It just requires the measurement of the variogram at only four points and, as a consequence, it is very fast. The proposed technique is compared with other standard techniques, showing a reduction in the error of the contrast measurement.

© 2007 Optical Society of America

OCIS Codes
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
(070.6760) Fourier optics and signal processing : Talbot and self-imaging effects
(100.0100) Image processing : Image processing
(100.2650) Image processing : Fringe analysis

ToC Category:
Fourier Optics and Signal Processing

Original Manuscript: January 9, 2007
Revised Manuscript: April 5, 2007
Manuscript Accepted: April 8, 2007
Published: July 6, 2007

Luis Miguel Sanchez-Brea, Francisco Jose Torcal-Milla, and Eusebio Bernabeu, "Variogram-based method for contrast measurement," Appl. Opt. 46, 5027-5033 (2007)

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