Accurately Measuring the Size of the Pupil of the Eye

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dc.contributor.author Lin, Xiang en
dc.contributor.author Craig, Jennifer en
dc.contributor.author Klette, Gisela en
dc.contributor.author Klette, Reinhard en
dc.date.accessioned 2008-08-21T01:57:38Z en
dc.date.available 2008-08-21T01:57:38Z en
dc.date.issued 2003 en
dc.identifier.citation Communication and Information Technology Research Technical Report 127, (2003) en
dc.identifier.issn 1178-3618 en
dc.identifier.uri http://hdl.handle.net/2292/2840 en
dc.description You are granted permission for the non-commercial reproduction, distribution, display, and performance of this technical report in any format, BUT this permission is only for a period of 45 (forty-five) days from the most recent time that you verified that this technical report is still available from the original CITR web site; http://citr.auckland.ac.nz/techreports/ under terms that include this permission. All other rights are reserved by the author(s). en
dc.description.abstract A new method is developed to accurately analyze the elliptical character of the contour of human s pupil in images captured by a special infrared CCD video camera. The method is an effective combination of edge detection algorithms, labelling method and least square fitting technique, which makes it robust to the eyes of different human races and easy to trace the random movements of the pupil. It even solved the problem of Purkinje phenomenal in images, which was previously only avoided by adjusting the light direction [1]. The parameters of a fitted ellipse, including the length of both axes, the orientation and the center position, are output as result for further analysis. en
dc.publisher CITR, The University of Auckland, New Zealand en
dc.relation.ispartofseries Communication and Information Technology Research (CITR) Technical Report Series en
dc.rights Copyright CITR, The University of Auckland. You are granted permission for the non-commercial reproduction, distribution, display, and performance of this technical report in any format, BUT this permission is only for a period of 45 (forty-five) days from the most recent time that you verified that this technical report is still available from the original CITR web site under terms that include this permission. All other rights are reserved by the author(s). en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.source.uri http://citr.auckland.ac.nz/techreports/2003/CITR-TR-127.pdf en
dc.title Accurately Measuring the Size of the Pupil of the Eye en
dc.type Technical Report en
dc.subject.marsden Fields of Research::280000 Information, Computing and Communication Sciences en


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