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Retinal fundus image constrast normalization using mixture of gaussians

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Bhalerao, Abhir, Anand, Sarabjot Singh and Saravanan, Ponnusamy (2008) Retinal fundus image constrast normalization using mixture of gaussians. In: 42nd Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, Oct 26-29, 2008. Published in: Asilomar Conference on Signals, Systems and Computers. Conference Record, Volume 1-4 pp. 647-650. ISBN 9781424429400. doi:10.1109/ACSSC.2008.5074486 ISSN 1058-6393.

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Official URL: http://dx.doi.org/10.1109/ACSSC.2008.5074486

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Abstract

We present a fast and robust method to correct contrast variation in retinal fundus imagery. The technique uses a mixture of Gaussians to model the bias of the intensity variation. Typically a three or four component mixture is sufficient to characterize the principal variation due to the spherical geometry of the retina, the high-contrast reflection off the optic nerve and the darker macula. We compare the results with a non-parametric, filtering approach on a standard diabetic retinopathy database of 89 images. Our results indicate that a parametric approach using mixture Gaussian is better at contrast stretching in lesion regions making is an effective pre-processing step for manual and computer aided diagnostic techniques.

Item Type: Conference Item (Paper)
Subjects: Q Science > QA Mathematics
R Medicine > RC Internal medicine
R Medicine > RE Ophthalmology
Divisions: Faculty of Science, Engineering and Medicine > Science > Computer Science
Library of Congress Subject Headings (LCSH): Retina -- Imaging, Ophthalmic photography, Gaussian processes
Journal or Publication Title: Asilomar Conference on Signals, Systems and Computers. Conference Record
Publisher: IEEE Computer Society
ISBN: 9781424429400
ISSN: 1058-6393
Editor: Matthews, MB
Official Date: 2008
Dates:
DateEvent
2008Published
Volume: Volume 1-4
Number of Pages: 4
Page Range: pp. 647-650
DOI: 10.1109/ACSSC.2008.5074486
Status: Not Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Date of first compliant deposit: 3 December 2015
Date of first compliant Open Access: 3 December 2015
Conference Paper Type: Paper
Title of Event: 42nd Asilomar Conference on Signals, Systems and Computers
Type of Event: Conference
Location of Event: Pacific Grove, CA
Date(s) of Event: Oct 26-29, 2008

Data sourced from Thomson Reuters' Web of Knowledge

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