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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. Motion Capture. History Vicon 8 Motion Capturing System Motion Capture in Animation Motion Capture in Modeling
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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
Motion Capture • History • Vicon 8 Motion Capturing System • Motion Capture in Animation • Motion Capture in Modeling • Motion Capturing in Adio/Visual Interactions • Observations • Conclusions
Brief History of Motion Capture • 1980-83 Simon Fraser University’s 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
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
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
Motion Capturing in Modeling • Using motion capture data to create rigs and models • USC derives human skeletal models from volume data
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/materials/HyperGraph/animation/character_animation/motion_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.