Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Depth Perception and Spatial Vision

Depth Perception and Spatial Vision

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.

You might also read

Related Articles

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

Sort by

Same author

Genetically Informed Single-Cell Analysis Reveals <i>PLXND1</i> as a Cell-Type-Specific Molecular Switch in MASLD.

Metabolites·2026

Same author

Increased serum phenylalanine and tyrosine concentration related to inflammation in patients with primary angiitis of the central nervous system.

Biochemistry and biophysics reports·2026

Same author

Liver endothelial zonation orchestrates hepatic steatosis onset through retinoic acid-regulated FGF1.

Science advances·2026

Same author

20(S)-hydroxycholesterol, a natural allosteric agonist of Smoothened, exerts neuroprotective effects associated with angiogenesis and vascular plasticity following ischemia.

Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie·2026

Same author

LEPR Contributes to Lung Squamous Cell Carcinoma: Insights From Mendelian Randomization and Experimental Studies.

Cancer informatics·2026

Same author

Association between renal replacement therapy and in-hospital mortality in patients with severe acute kidney injury: a retrospective cohort study based on MIMIC-IV database.

BMC urology·2026

Same journal

High-resolution depth estimation for multiple wideband sources in deep sea via sparse Bayesian learninga).

The Journal of the Acoustical Society of America·2026

Same journal

Depression markers in speech: An approach based on tract variables dynamics.

The Journal of the Acoustical Society of America·2026

Same journal

The oyster toadfish (Opsanus tau) alters active and diurnal calling amid vessel noise in New York City.

The Journal of the Acoustical Society of America·2026

Same journal

Experimental noise characterisation of phase-locked tandem-rotor in edgewise flight.

The Journal of the Acoustical Society of America·2026

Same journal

The tune-text-temporal synergy: Prosodic effects of final segmental weakening in Neapolitan.

The Journal of the Acoustical Society of America·2026

Same journal

Monitoring vessel movement above critical offshore infrastructure using distributed acoustic sensing.

The Journal of the Acoustical Society of America·2026

See all related articles

Search research articles

Related Experiment Video

Updated: May 31, 2025

Assessment of Static Graviceptive Perception in the Roll-Plane using the Subjective Visual Vertical Paradigm

Assessment of Static Graviceptive Perception in the Roll-Plane using the Subjective Visual Vertical Paradigm

Published on: April 28, 2020

Active headrest combined with a depth camera-based ear-positioning system.

Yuteng Liu¹, Haowen Li¹, Haishan Zou¹

¹Key Laboratory of Modern Acoustic, Nanjing University, Nanjing 210093, China.

The Journal of the Acoustical Society of America

|January 24, 2025

Summary

This summary is machine-generated.

Active headrests (AHR) offer noise reduction, but performance degrades with head movement. An ear-positioning (EP) system enhances AHR, maintaining significant noise reduction during head translation and rotation.

More Related Videos

Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform

Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform

Published on: May 23, 2013

Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model

Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model

Published on: May 24, 2024

Related Experiment Videos

Last Updated: May 31, 2025

Assessment of Static Graviceptive Perception in the Roll-Plane using the Subjective Visual Vertical Paradigm

Assessment of Static Graviceptive Perception in the Roll-Plane using the Subjective Visual Vertical Paradigm

Published on: April 28, 2020

Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform

Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform

Published on: May 23, 2013

Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model

Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model

Published on: May 24, 2024

Area of Science:

Acoustics
Biomedical Engineering
Human-Computer Interaction

Background:

Active headrests (AHR) provide localized noise reduction (NR) but are sensitive to head position.
Existing head tracking systems primarily address translational head movements, limiting robustness against combined motions.
Maintaining effective NR requires precise alignment between the AHR quiet zone and the listener's ear.

Purpose of the Study:

To develop and evaluate an ear-positioning (EP) system integrated with AHR for robust noise reduction.
To enhance the performance of AHR against both translational and rotational head movements.
To improve the overall effectiveness of AHR in real-world scenarios with dynamic head motion.

Main Methods:

An ear-positioning (EP) system was developed using a depth camera and a human pose estimation model.
The EP system was integrated with active headrests (AHR).
A post-processing algorithm was implemented to handle occluded ear scenarios.

Main Results:

The EP system demonstrated effective tracking of ear movements during translation and rotation.
AHR integrated with the EP system achieved substantial noise reduction (up to 11.7/12.2 dBA for translation, 11.4/13.6 dBA for rotation).
Performance improvements were significant compared to AHR without the EP system (e.g., -5.7/-6.9 dBA without system).

Conclusions:

The proposed ear-positioning system significantly enhances the robustness and performance of active headrests.
The integration of EP with AHR provides effective noise reduction across a range of head movements, including translation and rotation.
This technology offers a promising solution for maintaining personalized quiet zones in dynamic environments.