A geometric basis for measurement of three-dimensional eye position using image processing

Steven T. Moore, Thomas Haslwanter, Ian S. Curthoys, Stuart T. Smith

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

101 Zitate (Scopus)

Abstract

Polar cross correlation is commonly used for determination of ocular torsion from video images, but breaks down at eccentric positions if the spherical geometry of the eye is not considered. We have extended this method to allow three-dimensional eye position measurement over a range of ± 20 deg by determining the correct projection of the eye onto the image plane of the camera. We also determine the orientation of the camera with respect to the eye, allowing eye position to be represent ed in appropriate head-fixed coordinates. These algorithms have been validated using both in vitro and in vivo measures of eye position.

OriginalspracheEnglisch
Seiten (von - bis)445-459
Seitenumfang15
FachzeitschriftVision Research
Jahrgang36
Ausgabenummer3
DOIs
PublikationsstatusVeröffentlicht - Feb 1996

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