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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. 31, Iss. 4 — Apr. 1, 2014
  • pp: 863–871

Nonparametric noise estimation method for raw images

Miguel Colom, Antoni Buades, and Jean-Michel Morel  »View Author Affiliations


JOSA A, Vol. 31, Issue 4, pp. 863-871 (2014)
http://dx.doi.org/10.1364/JOSAA.31.000863


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Abstract

Optimal denoising works at best on raw images (the image formed at the output of the focal plane, at the CCD or CMOS detector), which display a white signal-dependent noise. The noise model of the raw image is characterized by a function that given the intensity of a pixel in the noisy image returns the corresponding standard deviation; the plot of this function is the noise curve. This paper develops a nonparametric approach estimating the noise curve directly from a single raw image. An extensive cross-validation procedure is described to compare this new method with state-of-the-art parametric methods and with laboratory calibration methods giving a reliable ground truth, even for nonlinear detectors.

© 2014 Optical Society of America

OCIS Codes
(040.0040) Detectors : Detectors
(040.1520) Detectors : CCD, charge-coupled device
(040.3780) Detectors : Low light level
(100.2960) Image processing : Image analysis
(100.2980) Image processing : Image enhancement
(110.4280) Imaging systems : Noise in imaging systems

ToC Category:
Image Processing

History
Original Manuscript: November 20, 2013
Revised Manuscript: February 9, 2014
Manuscript Accepted: February 19, 2014
Published: March 31, 2014

Citation
Miguel Colom, Antoni Buades, and Jean-Michel Morel, "Nonparametric noise estimation method for raw images," J. Opt. Soc. Am. A 31, 863-871 (2014)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-31-4-863

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