A Fast Center of Pupil Detection Algorithm for VOG-Based Eye Movement Tracking

S Kim; J Cho; J Jung; S Kim; J Lim; T Nam; J Kim

doi:10.1109/IEMBS.2005.1617153

A Fast Center of Pupil Detection Algorithm for VOG-Based Eye Movement Tracking

Conf Proc IEEE Eng Med Biol Soc. 2005:2005:3188-91. doi: 10.1109/IEMBS.2005.1617153.

Authors

S Kim¹, J Cho, J Jung, S Kim, J Lim, T Nam, J Kim

Affiliation

¹ Department of Biomedical Engineering, Inje University, Kimhae, 621-749, Korea.

PMID: 17282922
DOI: 10.1109/IEMBS.2005.1617153

Abstract

This paper proposes an algorithm that has been developed for the video-oculograph method. It is used to detect the center of the pupil, extracted from a captured image of an eye acquired by using a CCD camera and a computer with image grabber. The captured eye image is 640 by 480 pixels in size at 8 bits per pixel, in depth. The center of the pupil area could be obtained by applying the proposed algorithms for the threshold of the captured gray-scale image, for image enhancement and noise removing techniques even though the pupil area was partially covered by eyelashes and an eyelid.