Study to find an interrelationship with position of the pupil and an eyelid to extraction of point of gaze

Author

Kim, S.I. ; Cho, J.M. ; Nam, T.W. ; Kim, J.H. ; Kim, S.H. ; Lim, J.H.

Author_Institution

Dept. of Biomed. Eng., lnje Univ., Kimhae, South Korea

fYear

2005

fDate

23-25 June 2005

Firstpage

426

Lastpage

429

Abstract

This paper proposes an algorithm that has been developed for the video-oculograph method. Knowing the change of eyelid shape, we detect a center of pupil for extraction of a point of gaze. 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 image is 640 by 480 pixels in size. The program controls the image easily by using the binary image from the captured image grabber. The image removed noise, the reflected light from the pupil or partially covered by eyelashes and an eyelid, by using the image enhancement method. And boundary of eyelid is extracted using the obtained outline around eye.

Keywords

CCD image sensors; eye; feature extraction; image denoising; image enhancement; medical image processing; CCD camera; binary image; eye movement tracking; eyelashes; eyelid extraction; gaze; image enhancement method; image grabber; noise removed image; pupil center; video-oculograph method; Biomedical engineering; Change detection algorithms; Charge coupled devices; Charge-coupled image sensors; Eyelashes; Eyelids; Histograms; Image enhancement; Pixel; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Enterprise networking and Computing in Healthcare Industry, 2005. HEALTHCOM 2005. Proceedings of 7th International Workshop on

Print_ISBN

0-7803-8940-9

Type

conf

DOI

10.1109/HEALTH.2005.1500497

Filename

1500497