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dc.contributor.authorXu, Xiayu
dc.contributor.authorReinhardt, Joseph M.
dc.contributor.authorHu, Qiao
dc.contributor.authorBakall, Benjamin
dc.contributor.authorTlucek, Paul S.
dc.contributor.authorBertelsen, Geir
dc.contributor.authorAbràmoff, Michael D.
dc.date.accessioned2013-03-13T14:53:18Z
dc.date.available2013-03-13T14:53:18Z
dc.date.issued2012
dc.description.abstractThe retinal vessel width relationship at vessel branch points in fundus images is an important biomarker of retinal and systemic disease. We propose a fully automatic method to measure the vessel widths at branch points in fundus images. The method is a graph-based method, in which a graph construction method based on electric field theory is applied which specifically deals with complex branching patterns. The vessel centerline image is used as the initial segmentation of the graph. Branching points are detected on the vessel centerline image using a set of detection kernels. Crossing points are distinguished from branch points and excluded. The electric field based graph method is applied to construct the graph. This method is inspired by the non-intersecting force lines in an electric field. At last, the method is further improved to give a consistent vessel width measurement for the whole vessel tree. The algorithm was validated on 100 artery branchings and 100 vein branchings selected from 50 fundus images by comparing with vessel width measurements from two human experts.en
dc.identifier.citationPLoS ONE (2012), vol.7(11): e49668en
dc.identifier.cristinIDFRIDAID 1012512
dc.identifier.doihttp://dx.doi.org/10.1371/journal.pone.0049668
dc.identifier.issn1932-6203
dc.identifier.urihttps://hdl.handle.net/10037/5011
dc.identifier.urnURN:NBN:no-uit_munin_4716
dc.language.isoengen
dc.publisherPublic Library of Science (PLoS)en
dc.rights.accessRightsopenAccess
dc.subjectVDP::Medical disciplines: 700::Clinical medical disciplines: 750::Ophthalmology: 754en
dc.subjectVDP::Medisinske Fag: 700::Klinisk medisinske fag: 750::Oftalmologi: 754en
dc.titleRetinal Vessel Width Measurement at Branchings Using an Improved Electric Field Theory-Based Graph Approachen
dc.typeJournal articleen
dc.typeTidsskriftartikkelen
dc.typePeer revieweden


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