Automatic retinal vessel extraction based on directional mathematical morphology and fuzzy classification

Eysteinn Már Sigursson, Silvia Valero, Jón Atli Benediktsson*, Jocelyn Chanussot, Hugues Talbot, Einar Stefánsson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

The problem of detecting blood vessels in retinal color fundus images is addressed. An unsupervised method based on the extraction of two vessel features vectors in order to detect the pixels belonging to the vessel tree is presented. The proposed vessel features rely on the contrast of vessels and their linear connectivity. The extraction of these features is performed by using advanced morphological directional filter called path openings. The resulting features are used to carry out a data fusion task based on fuzzy set theory. As a result, pixel classification can easily be performed to construct a vessel map. Experimental results using real data have demonstrated the ability of the proposed method to successfully extract a good quality vessel tree. The obtained results are compared with results obtained by classical vessel extraction techniques.

Original languageEnglish
Pages (from-to)164-171
Number of pages8
JournalPattern Recognition Letters
Volume47
DOIs
Publication statusPublished - 1 Oct 2014

Bibliographical note

Funding Information:
This research was supported in part by the Icelandic Research Fund and the Research Fund of the University of Iceland.

Other keywords

  • Fundus image
  • Fuzzy sets
  • Image fusion
  • Mathematical morphology
  • Path openings

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