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

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

Research output: Contribution to journalArticlepeer-review

101 Citations (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.

Original languageEnglish
Pages (from-to)445-459
Number of pages15
JournalVision Research
Volume36
Issue number3
DOIs
Publication statusPublished - Feb 1996

Keywords

  • Eye movements
  • Image processing
  • Ocular torsion
  • Video
  • VOR
  • Cornea/physiology
  • Humans
  • Rotation
  • Eye Movements/physiology
  • Algorithms
  • Time Factors
  • Models, Biological
  • Video Recording

Fingerprint Dive into the research topics of 'A geometric basis for measurement of three-dimensional eye position using image processing'. Together they form a unique fingerprint.

Cite this