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Related Experiment Videos

Using skeleton-based tracking to increase the reliability of optical motion capture.

L Herda1, P Fua, R Plänkers

  • 1Computer Graphics Lab (LIG), Swiss Federal Institute of Technology, CH-1015 Lausanne, Switzerland. lorna.herda@epfl.ch

Human Movement Science
|August 24, 2001
PubMed
Summary

Optical motion capture (OMC) systems can be improved using anatomical human models. This approach enhances marker tracking and reduces manual editing for 3D animation.

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Area of Science:

  • Computer graphics
  • Biomechanics
  • Human-computer interaction

Background:

  • Optical motion capture (OMC) is widely used for gesture replication.
  • Current OMC systems suffer from marker occlusion and trajectory confusion, necessitating extensive manual correction.
  • This significantly impacts the efficiency of 3D animation production.

Purpose of the Study:

  • To enhance the robustness of optical motion capture systems.
  • To reduce the need for manual intervention in 3D motion data reconstruction.
  • To improve the accuracy of marker tracking and assignment.

Main Methods:

  • Integration of an anatomical human model with a precise skeletal mobility description and approximated envelope.
  • Utilizing the model to predict 3D marker locations and visibility.

Related Experiment Videos

  • Developing algorithms for robust marker tracking and assignment based on anatomical constraints.

    • Main Results:

    • Significantly increased robustness in marker tracking and assignment.
    • Accurate prediction of 3D marker positions and visibility.
    • Drastic reduction, or even elimination, of manual editing for 3D reconstruction.

    Conclusions:

    • Anatomical human models substantially improve OMC system robustness.
    • The proposed method streamlines the 3D animation workflow by minimizing post-processing.
    • This approach offers a more efficient and reliable solution for motion capture data processing.