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

880
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...
880
Relative Motion Analysis using Rotating Axes-Problem Solving01:29

Relative Motion Analysis using Rotating Axes-Problem Solving

704
Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
Here, in order to determine the magnitude of velocity and acceleration for point...
704
Absolute Motion Analysis- General Plane Motion01:24

Absolute Motion Analysis- General Plane Motion

538
Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
538
Relative Motion Analysis - Velocity01:24

Relative Motion Analysis - Velocity

700
A stroke engine has a slider-crank mechanism that converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider.
When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...
700
Relative Motion Analysis using Rotating Axes - Acceleration01:22

Relative Motion Analysis using Rotating Axes - Acceleration

754
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. The absolute velocity of point B is determined by adding the absolute velocity of point A, the relative velocity of point B in the rotating frame, and the effects caused by the angular velocity within the rotating frame.
Time differentiation is...
754

You might also read

Related Articles

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

Sort by
Same author

Dynamic Reconstruction of the Nickel Ions' Behavior in Different Orthodontic Archwires Following Clinical Application in an Intraoral Environment.

Materials (Basel, Switzerland)·2025
Same author

Adaptive Remote Sensing Paradigm for Real-Time Alerting of Convulsive Epileptic Seizures.

Sensors (Basel, Switzerland)·2023
Same author

Automated video-based detection of nocturnal motor seizures in children.

Epilepsia·2020
Same author

Multimodal, automated detection of nocturnal motor seizures at home: Is a reliable seizure detector feasible?

Epilepsia open·2018

Related Experiment Video

Updated: Jan 16, 2026

Design and Analysis for Fall Detection System Simplification
08:05

Design and Analysis for Fall Detection System Simplification

Published on: April 6, 2020

11.1K

Automated Remote Detection of Falls Using Direct Reconstruction of Optical Flow Principal Motion Parameters.

Simeon Karpuzov1, Stiliyan Kalitzin2,3, Olga Georgieva1,4

  • 1GATE Institute, Sofia University, 1164 Sofia, Bulgaria.

Sensors (Basel, Switzerland)
|September 27, 2025
PubMed
Summary

This study introduces a novel, fully automated fall detection system using principal motion parameters. The method offers improved accuracy and computational efficiency for real-time surveillance applications.

Keywords:
fall detectionoptical flowprincipal motion parametersreal-time detectionvideo-surveillance

More Related Videos

Author Spotlight: Innovations in iTUG Test for Enhanced Risk Assessment and Cognitive Insights
05:26

Author Spotlight: Innovations in iTUG Test for Enhanced Risk Assessment and Cognitive Insights

Published on: October 25, 2024

1.7K
Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane
07:24

Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane

Published on: August 22, 2025

477

Related Experiment Videos

Last Updated: Jan 16, 2026

Design and Analysis for Fall Detection System Simplification
08:05

Design and Analysis for Fall Detection System Simplification

Published on: April 6, 2020

11.1K
Author Spotlight: Innovations in iTUG Test for Enhanced Risk Assessment and Cognitive Insights
05:26

Author Spotlight: Innovations in iTUG Test for Enhanced Risk Assessment and Cognitive Insights

Published on: October 25, 2024

1.7K
Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane
07:24

Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane

Published on: August 22, 2025

477

Area of Science:

  • Computer Vision
  • Biomedical Engineering
  • Assistive Technologies

Background:

  • Fall detection is critical for healthcare and assistive technologies.
  • Current methods like wearable devices and manned surveillance have limitations (damage vulnerability, privacy concerns, labor intensity).
  • There is a need for automated, efficient, and privacy-preserving fall detection solutions.

Purpose of the Study:

  • To introduce and evaluate a novel approach for fully automated fall detection.
  • To compare the proposed method with state-of-the-art techniques in terms of accuracy, computational efficiency, and real-time suitability.
  • To demonstrate the adaptability and robustness of the model for real-world deployment.

Main Methods:

  • Developed a novel fall detection technique using direct reconstruction of principal motion parameters.
  • Avoided computationally expensive full optical flow reconstruction.
  • Systematically compared the new method against existing state-of-the-art fall detection techniques.

Main Results:

  • Achieved notable improvements in detection accuracy compared to traditional methods.
  • Demonstrated a lower computational cost, enhancing suitability for real-time applications.
  • The model showed robustness and universality, indicating potential for broader surveillance integration.

Conclusions:

  • The proposed automated fall detection system offers significant advantages in accuracy and efficiency.
  • The method is highly adaptable for real-world deployment in healthcare and surveillance.
  • Future work includes optimization for resource-constrained environments and deep learning enhancements for precision.