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

Relative Motion Analysis using Rotating Axes01:25

Relative Motion Analysis using Rotating Axes

881
Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame.
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
881

You might also read

Related Articles

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

Sort by
Same author

Full-Field 3D Displacement Measurement of Suspended Ceiling Systems Under Seismic Loading Using a Consumer-Grade Multi-Camera Framework.

Sensors (Basel, Switzerland)·2026
Same author

Measurement of Dynamic Responses from Large Structural Tests by Analyzing Non-Synchronized Videos.

Sensors (Basel, Switzerland)·2019
See all related articles

Related Experiment Video

Updated: Jan 18, 2026

Robotized Testing of Camera Positions to Determine Ideal Configuration for Stereo 3D Visualization of Open-Heart Surgery
05:12

Robotized Testing of Camera Positions to Determine Ideal Configuration for Stereo 3D Visualization of Open-Heart Surgery

Published on: August 12, 2021

2.4K

A Stereo Synchronization Method for Consumer-Grade Video Cameras to Measure Multi-Target 3D Displacement Using Image

Mearge Kahsay Seyfu1, Yuan-Sen Yang1

  • 1Department of Civil Engineering, National Taipei University of Technology, No. 1, Sec. 3, Zhongxiao E. Rd., Daan Dist., Taipei 10608, Taiwan.

Sensors (Basel, Switzerland)
|September 13, 2025
PubMed
Summary

This study introduces an image-based method to precisely synchronize consumer cameras for 3D displacement measurements in civil engineering. The technique significantly reduces errors in shake table experiments, enabling accurate, low-cost structural dynamics research.

Keywords:
3D displacementaccuracyimage processingshake tablesoftwaresynchronization

More Related Videos

High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
11:34

High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques

Published on: December 3, 2013

16.0K
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

4.9K

Related Experiment Videos

Last Updated: Jan 18, 2026

Robotized Testing of Camera Positions to Determine Ideal Configuration for Stereo 3D Visualization of Open-Heart Surgery
05:12

Robotized Testing of Camera Positions to Determine Ideal Configuration for Stereo 3D Visualization of Open-Heart Surgery

Published on: August 12, 2021

2.4K
High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
11:34

High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques

Published on: December 3, 2013

16.0K
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

4.9K

Area of Science:

  • Civil Engineering
  • Computer Vision
  • Structural Dynamics

Background:

  • Consumer-grade cameras offer a cost-effective solution for non-contact 3D displacement measurement in civil engineering.
  • Accurate temporal alignment of unsynchronized cameras is crucial for precise 3D coordinate acquisition.
  • Existing frame-level synchronization methods are insufficient for high-frequency shake table tests, leading to triangulation errors.

Purpose of the Study:

  • To develop and validate a novel image-based synchronization method for unsynchronized consumer cameras.
  • To improve the accuracy of 3D displacement measurements in high-frequency shake table experiments.
  • To provide a practical, low-cost alternative to expensive vision-based measurement systems.

Main Methods:

  • An image-based synchronization method was developed, estimating time lag by minimizing reprojection errors.
  • Sub-frame accuracy was achieved through polynomial interpolation of estimated time lags.
  • A graphical user interface (GUI)-based software was created for stereo video acquisition during shake table testing.
  • Validation was performed against a high-precision motion capture system (Mocap) in both large- and small-scale experiments.

Main Results:

  • The proposed method reduced the Root Mean Square Error (RMSE) of triangulation by up to 78.79%.
  • Maximum displacement errors were less than 1 mm for small-scale experiments.
  • The RMSE of displacement measurements decreased by 94.21% for small-scale and 62.86% for large-scale experiments.
  • Significant improvements in accuracy were demonstrated compared to existing methods.

Conclusions:

  • The developed image-based synchronization method enables precise 3D displacement measurements using low-cost consumer cameras.
  • This approach is highly effective for high-frequency shake table experiments, overcoming limitations of frame-level synchronization.
  • The method provides a viable and economical alternative for structural dynamics research and civil engineering applications.