Accurately Measuring the Size of the Pupil of the Eye

Lin, Xiang; Craig, Jennifer; Klette, Gisela; Klette, Reinhard

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