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Related Concept Videos

Absolute Motion Analysis- General Plane Motion01:24

Absolute Motion Analysis- General Plane Motion

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 drone...
Relative Motion Analysis - Acceleration01:10

Relative Motion Analysis - Acceleration

A slider-crank mechanism 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. The movement of the slider-crank is an example of general plane motion as the fluctuating angle between the crank and the connecting rod. Consider a segment AB where point A is at the end of the slider and point B is on the diametrically opposite end to point A, on a crack. The variance in...
Relative Motion Analysis - Velocity01:24

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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.
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Relative Motion Analysis using Rotating Axes01:25

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Relative Motion Analysis using Rotating Axes - Acceleration01:22

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Time differentiation is...
Relative Motion Analysis using Rotating Axes-Problem Solving01:29

Relative Motion Analysis using Rotating Axes-Problem Solving

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Related Experiment Video

Updated: Jun 18, 2026

Corticospinal Excitability Modulation During Action Observation
12:33

Corticospinal Excitability Modulation During Action Observation

Published on: December 31, 2013

Action tremor analysis from ordinary video sequence.

Zdenka Uhríková1, Otakar Sprdlík, Václav Hlavác

  • 1Faculty of Electrical Engineering, Czech Technical University in Prague, Karlovo nám. 13, 121 35 Prague 2, Czech Republic. uhrikz1@cmp.felk.cvut.cz

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
|December 8, 2009
PubMed
Summary

This study analyzes tremor frequency using video analysis by extracting signals and estimating power spectral density. Video results show good agreement with accelerometer measurements for tremor analysis.

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Area of Science:

  • Biomedical Engineering
  • Signal Processing
  • Medical Imaging

Background:

  • Tremor is a common neurological symptom.
  • Accurate tremor frequency analysis is crucial for diagnosis and monitoring.
  • Existing methods may have limitations in accessibility or cost.

Purpose of the Study:

  • To develop and validate a non-invasive method for tremor frequency analysis using video sequences.
  • To assess the feasibility of using readily available video data for quantitative tremor assessment.
  • To compare the performance of the proposed video-based method against a standard accelerometer technique.

Main Methods:

  • Signal extraction from video based on local intensity changes over time.
  • Power spectral density estimation for tremor frequency identification.
  • Comparative analysis of video-derived tremor frequencies with accelerometer data.

Main Results:

  • The video-based signal extraction effectively captured tremor-related motion.
  • Power spectral density analysis provided reliable tremor frequency estimates.
  • Results from video analysis demonstrated strong correlation and agreement with accelerometer measurements.

Conclusions:

  • Video sequence analysis offers a viable, non-invasive approach for tremor frequency assessment.
  • This method provides a cost-effective alternative to traditional tremor measurement tools.
  • Further research can explore its application in clinical settings for tremor diagnosis and management.