We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleDetection of the optic nerve head in fundus images of the retina with gabor filters and phase portrait analysis.AuthorsRangayyan RM; Zhu X; Ayres FJ; Ells ALPublicationJournal of Digital Imaging, 2010, Vol 23, Issue 4, p438ISSN0897-1889Publication typearticleDOI10.1007/s10278-009-9261-1