Title :
An algorithm to detect a center of pupil for extraction of point of gaze
Author :
Kim, S.I. ; Lee, D.K. ; Kim, S.Y. ; Kwon, O.S. ; Cho, J.
Author_Institution :
Dept. of Biomed. Eng., Inje Univ., Kimhae, South Korea
Abstract :
This work proposes an algorithm that is developed for the video-oculograph method. It is used to detect a center of pupil for extraction of point of gaze in the eye image acquired by a charge coupled device camera and TV receiver card. The center of pupil could be detected accurately by applying the proposed algorithm in this study that removes noise effectively caused by eyelashes and image that is projected on pupil. In this study, we assume that the pupil is a perfect circle in the captured eye images.
Keywords :
CCD image sensors; biomechanics; biomedical optical imaging; eye; TV receiver card; charge coupled device camera; eyelashes; point of gaze extraction; pupil; video-oculograph method; Charge coupled devices; Charge-coupled image sensors; Eyelashes; Frequency; Histograms; Pixel; Reflection; TV receivers; Testing; Tracking; Eye-movement tracking; VOG; point of gaze;
Conference_Titel :
Engineering in Medicine and Biology Society, 2004. IEMBS '04. 26th Annual International Conference of the IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-8439-3
DOI :
10.1109/IEMBS.2004.1403393
