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

Perception of Sound Waves

Perception of Sound Waves

The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...

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

Synergising flipped classroom and case-based learning in resource-intensive anatomy education in China: a quasi-experimental study.

BMJ open·2025

Same author

Targeting eIF4A with RNA Aptamers Enhances Salt Stress Tolerance in Rice Through Modulation of Translation Initiation.

Rice (New York, N.Y.)·2025

Same author

The Effectiveness of the Student-Centered Flipped Classroom Approach in Medical Anatomy Teaching: A Quasi-Experimental Study.

Clinical anatomy (New York, N.Y.)·2025

Same author

Compounds from sea buckthorn and their application in food: A review.

Food chemistry·2025

Same author

Comparative Analysis Highlights Uniconazole's Efficacy in Enhancing the Cold Stress Tolerance of Mung Beans by Targeting Photosynthetic Pathways.

Plants (Basel, Switzerland)·2024

Same author

miR-181a targets PTEN to mediate the neuronal injury caused by oxygen-glucose deprivation and reoxygenation.

Metabolic brain disease·2023

Search research articles

Related Experiment Video

Updated: Oct 18, 2025

Long-term Behavioral Tracking of Freely Swimming Weakly Electric Fish

Long-term Behavioral Tracking of Freely Swimming Weakly Electric Fish

Published on: March 6, 2014

Underwater Target Perception in Local HOS Space.

Jue Gao¹, Peiyi Zhu¹

¹School of Electrical Engineering and Automation, Changshu Institute of Technology, Changshu 215500, Jiangsu, China.

Computational Intelligence and Neuroscience

|September 28, 2021

Summary

This study introduces an underwater target perception architecture using acoustic imaging and high-order statistics (HOS) for region-of-interest (ROI) detection. The method effectively reconstructs targets, improving detection rates and reducing false alarms in underwater acoustics.

More Related Videos

Measuring the Structure, Composition, and Change of Underwater Environments with Large-area Imaging

Measuring the Structure, Composition, and Change of Underwater Environments with Large-area Imaging

Published on: April 18, 2025

Long-term Video Tracking of Cohoused Aquatic Animals: A Case Study of the Daily Locomotor Activity of the Norway Lobster Nephrops norvegicus

Long-term Video Tracking of Cohoused Aquatic Animals: A Case Study of the Daily Locomotor Activity of the Norway Lobster Nephrops norvegicus

Published on: April 8, 2019

Related Experiment Videos

Last Updated: Oct 18, 2025

Long-term Behavioral Tracking of Freely Swimming Weakly Electric Fish

Long-term Behavioral Tracking of Freely Swimming Weakly Electric Fish

Published on: March 6, 2014

Measuring the Structure, Composition, and Change of Underwater Environments with Large-area Imaging

Measuring the Structure, Composition, and Change of Underwater Environments with Large-area Imaging

Published on: April 18, 2025

Long-term Video Tracking of Cohoused Aquatic Animals: A Case Study of the Daily Locomotor Activity of the Norway Lobster Nephrops norvegicus

Long-term Video Tracking of Cohoused Aquatic Animals: A Case Study of the Daily Locomotor Activity of the Norway Lobster Nephrops norvegicus

Published on: April 8, 2019

Area of Science:

Marine technology
Acoustic imaging
Signal processing

Background:

Underwater target detection is challenging due to acoustic image limitations.
Existing methods struggle with unknown target sizes and numbers.

Purpose of the Study:

To propose a novel underwater target perception architecture.
To enhance the accuracy and reliability of underwater target detection.

Main Methods:

A three-stage process: acoustic imaging, local high-order statistics (HOS) space conversion, and region-of-interest (ROI) detection.
Utilizing the unique cube structure in local skewness space for ROI detection.
Employing focus processing and uncertain theoretical templates for target reconstruction.

Main Results:

Demonstrated improved performance in signal-to-noise ratio (SNR), detection rate, and false alarm rate.
Achieved effective target reconstruction even with unknown target size and number.
Experimental validation using multiple acoustic image sequences.

Conclusions:

The proposed architecture offers a robust solution for underwater target perception.
The method is generalizable to various underwater applications.
Significant improvements in detection accuracy and reconstruction fidelity were observed.