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dc.contributor.authorMorelande, MR
dc.contributor.authorIskander, DR
dc.contributor.authorCollins, MJ
dc.contributor.authorFranklin, R
dc.date.accessioned2017-05-03T13:55:56Z
dc.date.available2017-05-03T13:55:56Z
dc.date.issued2002
dc.date.modified2010-10-12T06:54:38Z
dc.identifier.issn0018-9294
dc.identifier.doi10.1109/TBME.2002.805481
dc.identifier.urihttp://hdl.handle.net/10072/6941
dc.description.abstractAn algorithm for estimating the corneal limbus from videokeratoscopic images is proposed. After the image is transformed to a polar grid, a novel edge-detection procedure, suitable for the detection of the soft edge produced by the limbus, is used to locate the limbus. Outliers due to the eyelids, eyelashes, and videokeratoscopic rings are removed by taking advantage of the approximate circularity of the cornea. An ellipse which minimizes the sum of the squared algebraic errors is fitted to the remaining edge points. Comparisons between the proposed algorithm, a manual computer-based technique and an algorithm which uses conventional edge-detection techniques demonstrate the accuracy of the proposed algorithm.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent911793 bytes
dc.format.extent38293 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.languageEnglish
dc.language.isoeng
dc.publisherIEEE
dc.publisher.placeUSA
dc.relation.ispartofpagefrom1617
dc.relation.ispartofpageto1625
dc.relation.ispartofissue12
dc.relation.ispartofjournalIEEE Transactions on Biomedical Engineering
dc.relation.ispartofvolume49
dc.subject.fieldofresearchBiomedical engineering
dc.subject.fieldofresearchcode4003
dc.titleAutomatic estimation of the corneal limbus in videokeratoscopy
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© 2002 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
gro.date.issued2002
gro.hasfulltextFull Text
gro.griffith.authorIskander, Robert


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