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

Echo01:06

Echo

821
The human ear cannot distinguish between two sources of sound if they happen to reach within a specific time interval, typically 0.1 seconds apart. More than this, and they are perceived as separate sources.
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case,...
821
Difference from Background: Limit of Detection01:05

Difference from Background: Limit of Detection

7.9K
The limit of detection (LOD) is the smallest amount of analyte that can be distinguished from the background noise. The LOD value corresponds to the concentration at which the analyte signal is three times larger than the standard deviation of the blank signal. Below this value, the analyte signal cannot be differentiated from the background noise. It is calculated by dividing the calibration slope by 3 times the standard deviation of the blank signals.
The LOD indicates the presence or absence...
7.9K
Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

373
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over...
373
Distance Measurements by Taping01:18

Distance Measurements by Taping

345
Tapes are essential in surveying for accurate, durable, and short-distance measurements. Made from lightweight, nylon-coated steel, they offer flexibility and strength for rugged outdoor use. The nylon coating protects against rust and wear, extending the tape's life. Standard lengths, around 30 meters, are marked in meters and millimeters for precision.Surveyors select tapes based on site conditions and accuracy needs. Lightweight, nylon-coated tapes are commonly used for ease of handling and...
345
Design Example: Measuring Distance Between Two Points with Obstructions01:10

Design Example: Measuring Distance Between Two Points with Obstructions

309
When measuring distances in areas with physical obstructions, such as a lake in a field, surveyors must employ techniques to calculate accurate lengths without direct line measurements. One effective method is the offset technique, which allows for precise distance estimation over inaccessible stretches.In this scenario, a surveyor must measure a side of an area that crosses a lake. Since the measuring tape cannot span the lake, the surveyor begins by establishing a baseline that aligns with...
309
Interference: Path Lengths01:10

Interference: Path Lengths

1.8K
Consider two sources of sound, that may or may not be in phase, emitting waves at a single frequency, and consider the frequencies to be the same.
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
1.8K

You might also read

Related Articles

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

Sort by
Same author

Brain-Computer Interfaces: The Dawn of a New Era in Disease Treatment.

Exploration (Beijing, China)·2026
Same author

A Deep-Red Emissive Cage-in-Rings Complex for Lysosome Imaging.

Angewandte Chemie (International ed. in English)·2026
Same author

lncRNA-mRNA Co-expression Network Unveils Neutrophil Metabolic Reprogramming in Human Sepsis.

Inflammation·2026
Same author

Corrigendum to "Synergistic effects of PS-NPs and Cd on ovarian toxicity in adolescent rats: Ferroptosis by induction of mitochondrial redox imbalance via the SIRT3-SOD2/Gpx4 pathway" [Ecotoxicology and Environmental Safety, 290, (2025) 117622].

Ecotoxicology and environmental safety·2026
Same author

Visual acuity and stereopsis across the parafoveal and perifoveal retina in young adults: an eccentricity and meridian analysis.

PeerJ·2026
Same author

Architectural and evolutionary features of TE-derived TSSs shape tissue-specific promoter activity in the human genome.

Nature communications·2026

Related Experiment Video

Updated: Dec 21, 2025

Comparison of Three Clinical Stereoscopic Methods for Measuring Binocular Visual Function During Amblyopic Treatment in Unilateral Amblyopia
06:19

Comparison of Three Clinical Stereoscopic Methods for Measuring Binocular Visual Function During Amblyopic Treatment in Unilateral Amblyopia

Published on: September 27, 2024

458

The difference of distance stereoacuity measured with different separating methods.

Lingzhi Zhao1, Yu Zhang2, Huang Wu2

  • 1Department of Medical Equipment, the Second Hospital of Jilin University, Changchun 130041, China.

Annals of Translational Medicine
|May 13, 2020
PubMed
Summary

Different methods for separating the eyes significantly impact distance stereoacuity tests. Red-green anaglyph tests yielded worse results compared to polarized or active shutter 3D systems.

Keywords:
Stereoacuitycomputerstereotest

More Related Videos

Stereoacuity Improvement using Random-Dot Video Games
06:25

Stereoacuity Improvement using Random-Dot Video Games

Published on: January 14, 2020

14.9K
Measuring Sensitivity to Viewpoint Change with and without Stereoscopic Cues
08:04

Measuring Sensitivity to Viewpoint Change with and without Stereoscopic Cues

Published on: December 4, 2013

4.7K

Related Experiment Videos

Last Updated: Dec 21, 2025

Comparison of Three Clinical Stereoscopic Methods for Measuring Binocular Visual Function During Amblyopic Treatment in Unilateral Amblyopia
06:19

Comparison of Three Clinical Stereoscopic Methods for Measuring Binocular Visual Function During Amblyopic Treatment in Unilateral Amblyopia

Published on: September 27, 2024

458
Stereoacuity Improvement using Random-Dot Video Games
06:25

Stereoacuity Improvement using Random-Dot Video Games

Published on: January 14, 2020

14.9K
Measuring Sensitivity to Viewpoint Change with and without Stereoscopic Cues
08:04

Measuring Sensitivity to Viewpoint Change with and without Stereoscopic Cues

Published on: December 4, 2013

4.7K

Area of Science:

  • Ophthalmology
  • Vision Science
  • 3D Technology

Background:

  • Stereopsis evaluation typically requires binocular separation.
  • The influence of different binocular separation methods on stereopsis testing is not well understood.

Purpose of the Study:

  • To investigate how various binocular separation techniques affect distance stereoacuity measurements.
  • To compare the efficacy of red-green anaglyphs, polarized light, active shutter 3D, and auto-stereoscopic systems in assessing stereopsis.

Main Methods:

  • Four distinct systems were employed: red-green anaglyphs, polarized 3D, active shutter 3D, and auto-stereoscopic.
  • Distance stereoacuity was measured in thirty subjects using these computer-based systems.

Main Results:

  • The auto-stereoscopic system was unsuccessful in measuring distance stereopsis.
  • Significant differences in stereoacuity results were observed across the red-green anaglyph, polarized 3D, and active shutter 3D systems (P<0.001).
  • The red-green anaglyph system produced significantly poorer stereoacuity scores compared to both polarized and active shutter 3D systems (P<0.001).

Conclusions:

  • The method used for binocular separation demonstrably influences the outcomes of distance stereoacuity tests.
  • Polarized and active shutter 3D systems showed comparable results, suggesting they are more reliable than red-green anaglyphs for this type of measurement.