Detection of the foveal avascular zone on retinal angiograms using Markov random fields

Authors:
A. Haddouche;M. Adel;M. Rasigni;J. Conrath;S. Bourennane
Affiliations:
Institut Fresnel UMR-CNRS 6133, Equipe GSM, Université Paul-Cézanne, Avenue Escadrille Normandie-Niemen, 13397 Marseille cedex 20, France;Institut Fresnel UMR-CNRS 6133, Equipe GSM, Université Paul-Cézanne, Avenue Escadrille Normandie-Niemen, 13397 Marseille cedex 20, France;Institut Fresnel UMR-CNRS 6133, Equipe GSM, Université Paul-Cézanne, Avenue Escadrille Normandie-Niemen, 13397 Marseille cedex 20, France;Service d'ophtalmologie, Hôpital de la Timone, 264 rue Saint-Pierre, 13385 Marseille, France;Institut Fresnel UMR-CNRS 6133, Equipe GSM, Université Paul-Cézanne, Avenue Escadrille Normandie-Niemen, 13397 Marseille cedex 20, France
Venue:
Digital Signal Processing
Year:
2010

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Abstract

This paper deals with the segmentation of the Foveal Avascular Zone (FAZ) in digital retinal angiograms. Retinal angiography is used for detection and progression in some eye pathologies. The proposed method consists of two-stages: Singular Value Decomposition (SVD) and FAZ segmentation using Markov Random Fields (MRF). The obtained results demonstrate that the method is encouraging as a first approach for location and evolution of FAZ in retinal images.