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 Concept Videos

Focusing of Light in the Eye01:16

Focusing of Light in the Eye

3.6K
Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
3.6K
Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

1.3K
Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
1.3K
Aliasing01:18

Aliasing

308
Accurate signal sampling and reconstruction are crucial in various signal-processing applications. A time-domain signal's spectrum can be revealed using its Fourier transform. When this signal is sampled at a specific frequency, it results in multiple scaled replicas of the original spectrum in the frequency domain. The spacing of these replicas is determined by the sampling frequency.
If the sampling frequency is below the Nyquist rate, these replicas overlap, preventing the original...
308
Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

903
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
903
Association Areas of the Cortex01:21

Association Areas of the Cortex

7.2K
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
7.2K

You might also read

Related Articles

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

Sort by
Same author

A Systematic Review of Deep Learning Approaches for Hepatopancreatic Tumor Segmentation.

Journal of imaging·2026
Same author

Virtual Reality as a Tool for Upper Limb Rehabilitation in Rett Syndrome: Reducing Stereotypies and Improving Motor Skills.

Pediatric reports·2025
Same author

Near-optimal combination of disparity across a log-polar scaled visual field.

PLoS computational biology·2020
Same author

Advances in Human-Computer Interactions: Methods, Algorithms, and Applications.

Computational intelligence and neuroscience·2018
Same author

An active system for visually-guided reaching in 3D across binocular fixations.

TheScientificWorldJournal·2014

Related Experiment Video

Updated: Oct 30, 2025

Virtual Prism Adaptation Therapy: Protocol for Validation in Healthy Adults
06:12

Virtual Prism Adaptation Therapy: Protocol for Validation in Healthy Adults

Published on: February 12, 2020

7.1K

Mitigating Cybersickness in Virtual Reality Systems through Foveated Depth-of-Field Blur.

Razeen Hussain1, Manuela Chessa1, Fabio Solari1

  • 1Department of Informatics, Bioengineering, Robotics and Systems Engineering, University of Genoa, 16126 Genoa, Italy.

Sensors (Basel, Switzerland)
|July 2, 2021
PubMed
Summary

This study introduces a novel foveated depth-of-field technique to reduce cybersickness in virtual reality (VR). The method significantly decreases discomfort and nausea, enhancing the immersive VR experience for users.

Keywords:
cycbersicknessdepth-of-fieldeye-trackerfoveationgaze-contingentshaderspatial blur

More Related Videos

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition
07:45

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition

Published on: July 21, 2020

4.7K
Stereoacuity Improvement using Random-Dot Video Games
06:25

Stereoacuity Improvement using Random-Dot Video Games

Published on: January 14, 2020

14.7K

Related Experiment Videos

Last Updated: Oct 30, 2025

Virtual Prism Adaptation Therapy: Protocol for Validation in Healthy Adults
06:12

Virtual Prism Adaptation Therapy: Protocol for Validation in Healthy Adults

Published on: February 12, 2020

7.1K
Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition
07:45

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition

Published on: July 21, 2020

4.7K
Stereoacuity Improvement using Random-Dot Video Games
06:25

Stereoacuity Improvement using Random-Dot Video Games

Published on: January 14, 2020

14.7K

Area of Science:

  • Human-Computer Interaction
  • Virtual Reality Technology
  • Visual Perception

Background:

  • Cybersickness, characterized by discomfort and nausea, hinders widespread adoption of virtual reality (VR) devices.
  • Spatial blur in stereoscopic 3D stimuli has been identified as a potential method to alleviate cybersickness.
  • Existing VR systems often lack effective mechanisms to mitigate user discomfort during prolonged use.

Purpose of the Study:

  • To develop and evaluate a novel technique for incorporating spatial blur in VR systems, inspired by human visual physiology.
  • To reduce cybersickness experienced by users in immersive virtual environments.
  • To provide an artifact-free visual experience in eye-tracker equipped VR systems.

Main Methods:

  • Developed a technique integrating foveated imaging and depth-of-field concepts for spatial blur implementation.
  • Applied the technique as a post-processing step in VR systems.
  • Conducted a user study using a custom rollercoaster VR environment and an HTC Vive Pro Eye headset.
  • Measured cybersickness using the Simulator Sickness Questionnaire and recorded gaze and heart rate data.

Main Results:

  • The proposed foveated depth-of-field effect demonstrated significant reduction in cybersickness.
  • User sickness scores were reduced by approximately 66% compared to baseline conditions.
  • Quantitative analysis of gaze and heart rate data supported the subjective findings on reduced discomfort.

Conclusions:

  • The developed foveated depth-of-field technique effectively reduces cybersickness in virtual reality environments.
  • This approach offers a promising solution for enhancing user comfort and enabling wider adoption of VR technology.
  • The technique is applicable to any eye-tracker equipped VR system, providing a versatile post-processing solution.