Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Ocular torsion quantification with video images

J E Bos1, B de Graaf

  • 1Department of Medical Physics Vrije Universiteit, Amsterdam, The Netherlands.

IEEE Transactions on Bio-Medical Engineering
|April 1, 1994
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Rurality, Deprivation and Ethnicity in New Zealand: Population Distributions and Intersecting Impacts on Mortality.

The Australian journal of rural health·2026
Same author

The effect of repeated shocks on the low back during horse riding.

Journal of biomechanics·2025
Same author

The (in)effectiveness of anticipatory vibrotactile cues in mitigating motion sickness.

Experimental brain research·2023
Same author

Self-motion perception without sensory motion.

Experimental brain research·2022
Same author

How feelings of unpleasantness develop during the progression of motion sickness symptoms.

Experimental brain research·2021
Same author

[Motion sickness in motion: from carsickness to cybersickness].

Nederlands tijdschrift voor geneeskunde·2018
Same journal

Enhancing Volumetric Imaging in Linear-Array Photoacoustic Tomography: multiview fusion with deep learning.

IEEE transactions on bio-medical engineering·2026
Same journal

Robust Rule-based Heuristic Assistance Strategy for a Semi-Active Shoulder Exoskeleton Used in Overhead Work.

IEEE transactions on bio-medical engineering·2026
Same journal

Highly Accelerated 1-mm Isotropic 3D Chemical Exchange Saturation Transfer MRI Using Wave-Co-CAIPI at 5 Tesla.

IEEE transactions on bio-medical engineering·2026
Same journal

Systematic Evaluation of Hip Exoskeleton Assistance Parameters for Enhancing Gait Stability During Ground Slip Perturbations.

IEEE transactions on bio-medical engineering·2026
Same journal

SleepConFormer: A Single-Channel EEG Framework for Sleep Staging and Consciousness Assessment in Patients with Disorders of Consciousness.

IEEE transactions on bio-medical engineering·2026
Same journal

Modeling Partial and Total Support of Left Ventricular Assist Device for Discrete Hemodynamic Control Framework.

IEEE transactions on bio-medical engineering·2026
See all related articles

This study introduces a simple, accurate method to measure ocular torsion using digitized iris images. The technique achieves high resolution and accuracy, validated in human experiments under various conditions.

Area of Science:

  • Ophthalmology
  • Biomedical Engineering
  • Image Analysis

Background:

  • Quantifying ocular torsion (eye rotation about the visual axis) is crucial for understanding visual-vestibular interactions.
  • Existing methods for measuring ocular torsion can be complex or lack precision.

Purpose of the Study:

  • To develop and validate a simple, accurate technique for quantifying static ocular torsion.
  • To assess the resolution and accuracy of the proposed method.

Main Methods:

  • Utilizing two digitized, polar-transformed iris images displayed on a video monitor for manual comparison.
  • Implementing an averaging technique over partitioned iris images to determine ocular torsion.
  • Conducting error analysis and validating the method with an artificial eye and human subjects.

Related Experiment Videos

Main Results:

  • The method offers a theoretical resolution of 5' of arc for ocular torsion measurement.
  • Accuracy was demonstrated to be better than 14' of arc in control experiments.
  • The technique was successfully validated with human data during tilt and hypergravity (up to 3 g).

Conclusions:

  • The described technique provides a simple and accurate means for quantifying ocular torsion.
  • This method has potential applications in research involving visual-vestibular responses and human physiology under altered gravity.