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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

  • Editor: Franco Gori
  • Vol. 29, Iss. 10 — Oct. 1, 2012
  • pp: 2058–2066

No-reference image quality assessment through the von Mises distribution

Salvador Gabarda and Gabriel Cristóbal  »View Author Affiliations


JOSA A, Vol. 29, Issue 10, pp. 2058-2066 (2012)
http://dx.doi.org/10.1364/JOSAA.29.002058


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Abstract

An innovative way of calculating the von Mises distribution of image entropy is introduced in this paper. The von Mises distribution’s concentration parameter and some fitness parameter that will be defined later have been analyzed in the experimental part for determining their suitability as an image quality assessment measure in some particular distortions such as Gaussian blur or additive Gaussian noise. To achieve such measure, the local Rényi entropy is calculated in four equally spaced orientations and used to determine the parameters of the von Mises distribution of the image entropy. Considering contextual images, experimental results after applying this model show that the best-in-focus noise-free images are associated with the highest values for the von Mises distribution concentration parameter and the highest approximation of image data to the von Mises distribution model. Our defined von Mises fitness parameter experimentally appears also as a suitable no-reference image quality assessment indicator for no-contextual images.

© 2012 Optical Society of America

OCIS Codes
(100.2000) Image processing : Digital image processing
(110.3000) Imaging systems : Image quality assessment
(180.0180) Microscopy : Microscopy
(330.6180) Vision, color, and visual optics : Spectral discrimination

ToC Category:
Imaging Systems

History
Original Manuscript: February 17, 2012
Revised Manuscript: June 28, 2012
Manuscript Accepted: July 24, 2012
Published: September 6, 2012

Citation
Salvador Gabarda and Gabriel Cristóbal, "No-reference image quality assessment through the von Mises distribution," J. Opt. Soc. Am. A 29, 2058-2066 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-10-2058

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