A method for size estimation of amorphous pupil in 3-dimensional geometry

Author

Kim, Jieun ; Park, Kyungmo ; Khang, Gon

Author_Institution

Dept. of Biomed. Eng., Kyunghee Univ., Kyunggi, South Korea

Volume

1

fYear

2004

fDate

1-5 Sept. 2004

Firstpage

1451

Lastpage

1454

Abstract

Measuring pupil size is a noninvasive method for evaluation of autonomic nervous system (ANS) activity because the pupil is exclusively controlled by the autonomic nervous system. To evaluate the activity of ANS, an accurate pupil size calculation method different from those of pupillometer and eye tracker should be suggested. This paper presents a three-dimensional model of eye and pupil and also suggests an accurate estimation method of pupil size from images projected on two-dimensional image plane with distortions.

Keywords

CCD image sensors; biomedical measurement; biomedical optical imaging; eye; neurophysiology; size measurement; 3-dimensional model; amorphous pupil size measurement; autonomic nervous system activity; noninvasive method; pupil size calculation method; two-dimensional CCD image plane; Amorphous materials; Autonomic nervous system; Biomedical engineering; Biomedical measurements; Cameras; Charge coupled devices; Geometry; Lenses; Shape measurement; Size measurement; 3D transformation; Pupil size variability;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/IEMBS.2004.1403448

Filename

1403448