Applications of a Motion Capturing System: Music, Modeling, and Animation

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Applications of a Motion Capturing System Music,
Modeling, and Animation

• Chase Finch, Kevin Musselman, Bill Mummert
• College of Engineering and Science, Clemson
  University

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Motion Capture

• History
• Vicon 8 Motion Capturing System
• Motion Capture in Animation
• Motion Capture in Modeling
• Motion Capturing in Adio/Visual Interactions
• Observations
• Conclusions

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Brief History of Motion Capture

• 1980-83 Simon Fraser Universitys biomechanics
  labs start using to computers to analyze human
  motion
• MIT started using optical tracking systesm Op-Eye
  and SelSpot
• Mike the Talking Head of Silicon Graphics

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Vicon 8 Motion Capturing System

• Passive System
• 8 infared cameras tracks markers
• Records cartesian coordinates (x,y,z)
• Average recording rate of 120 fps
• Newer system has 12 cameras and records at 484 fps

A visual representation of MoCap
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Motion Capture Animation

• Maps collected data to a virtual character
• Requires creating a rig
• System of structures in a model with control
  points to move the model
• Facial motion capture

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Motion Capturing in Modeling

• Using motion capture data to create rigs and
  models
• USC derives human skeletal models from volume
  data

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Motion Capturing Audio/Visual Interactions

• Sound creation usually requires a physical motion
  ie drawing a bow across a violin requires a
  precise motion for certain sounds
• Motion Capture Music
• Outputs mapped commands to a MIDI creator
• Dance Instruction
• References
• David J. Sturman. A Brief History of Motion
  Capture for Computer Character Animation.
  Available at http//www.siggraph.org/education/mat
  erials/HyperGraph/animation/character_animation/mo
  tion_capture/history1.htm
• Anderson, R.E. Social impacts of computing Codes
  of professional ethics. Social Science Computing
  Review 10, 2 (Winter 1992), 453-469.
• CHI Conference Publications Format. Available at
  http//www.acm.org/sigchi/chipubform/.
• Conger., S., and Loch, K.D. (eds.). Ethics and
  computer use. Commun. ACM 38, 12 (entire issue).
• Mackay, W.E. Ethics, lies and videotape, in
  Proceedings of CHI '95 (Denver CO, May 1995), ACM
  Press, 138-145.
• Schwartz, M., and Task Force on Bias-Free
  Language. Guidelines for Bias-Free Writing.
  Indiana University Press, Bloomington IN, 1995.

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Thank You