Measurement of optical cup-to-disc ratio in fundus images for glaucoma screening

Hanan Alghmdi, Lilian Tang Hongying, Morten Hansen, Arrianne O'Shea, Lutfiah Al Turk, Tunde Peto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Citations (Scopus)

Abstract

Glaucoma is the second leading cause of blindness. There is no cure for glaucoma yet and early detection is critical to avoid total loss of vision. Cup to disc ratio (CDR) is commonly used by ophthalmologists to diagnose glaucoma. The purpose of this work is to develop an automatic approach to measure the cup to disc ratio (CDR) for glaucoma screening. In this paper, superpixels clustering algorithm; simple linear iterative clustering (SLIC) and a feed-forward neural network classifier have been utilized. A set of superpixels features are extracted and then used for training the classifier. To detect the optic disc and cup boundaries, the classifier is used to classify the superpixels in the region of interest. Then morphological operations and elliptical estimation approach are applied for the final cup and disc boundary detection and segmentation. The CDR is calculated based on these segmentations. Experiments show that by training the non-linear classifier on a set of efficient features, the optic disc and cup can be correctly estimated even in a low contrast images. The results have also shown that effectiveness of the approach with 92% sensitivity and 88% specificity.

Original languageEnglish
Title of host publication2015 International Workshop on Computational Intelligence for Multimedia Understanding, IWCIM 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467384575
DOIs
Publication statusPublished - 03 Dec 2015
Externally publishedYes
Event2015 International Workshop on Computational Intelligence for Multimedia Understanding, IWCIM 2015 - Prague, Czech Republic
Duration: 29 Oct 201530 Oct 2015

Conference

Conference2015 International Workshop on Computational Intelligence for Multimedia Understanding, IWCIM 2015
CountryCzech Republic
CityPrague
Period29/10/201530/10/2015

Keywords

  • cup to disc ratio
  • fundus images
  • Glaucoma screening
  • optic disc and cup segmentation

ASJC Scopus subject areas

  • Classics
  • Artificial Intelligence

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