dc.contributor.author | Morelande, MR | |
dc.contributor.author | Iskander, DR | |
dc.contributor.author | Collins, MJ | |
dc.contributor.author | Franklin, R | |
dc.date.accessioned | 2017-05-03T13:55:56Z | |
dc.date.available | 2017-05-03T13:55:56Z | |
dc.date.issued | 2002 | |
dc.date.modified | 2010-10-12T06:54:38Z | |
dc.identifier.issn | 0018-9294 | |
dc.identifier.doi | 10.1109/TBME.2002.805481 | |
dc.identifier.uri | http://hdl.handle.net/10072/6941 | |
dc.description.abstract | An 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.peerreviewed | Yes | |
dc.description.publicationstatus | Yes | |
dc.format.extent | 911793 bytes | |
dc.format.extent | 38293 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language | English | |
dc.language.iso | eng | |
dc.publisher | IEEE | |
dc.publisher.place | USA | |
dc.relation.ispartofpagefrom | 1617 | |
dc.relation.ispartofpageto | 1625 | |
dc.relation.ispartofissue | 12 | |
dc.relation.ispartofjournal | IEEE Transactions on Biomedical Engineering | |
dc.relation.ispartofvolume | 49 | |
dc.subject.fieldofresearch | Biomedical engineering | |
dc.subject.fieldofresearchcode | 4003 | |
dc.title | Automatic estimation of the corneal limbus in videokeratoscopy | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dc.type.code | C - 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.issued | 2002 | |
gro.hasfulltext | Full Text | |
gro.griffith.author | Iskander, Robert | |