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Motion Capture CS294-7. Jacqueline Takeshita Mindy Lue. What is motion capture?. Technique that digitally records movements using markers at joints Software records positions, angles, velocities, accelerations, and impulses Also known as motion tracking. Where is it used?.
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Motion CaptureCS294-7 Jacqueline Takeshita Mindy Lue
What is motion capture? • Technique that digitally records movements using markers at joints • Software records positions, angles, velocities, accelerations, and impulses • Also known as motion tracking
Where is it used? • Education – how the body moves • Training – suggest ways to improve performance • Sports - simulations • Computer Animation • Video Games
How it Works • Mechanical – performer wears sensors • Optical – performer wears reflective dots followed by several cameras • Electromagnetic – performer wears an array of magnetic receivers which track location with respect to transmitter
Advantages • Saves time • Creates natural realistic movements • Actor can play multiple roles in a single film • Allows for rotating effects and multiple angles • Characters can be blended to digital environments
Disadvantages • Limited to movements that are anatomically possible • Specific hardware and programs needed to obtain and process data • Technology upgraded quickly – versions become obsolete every few years • Real life performance may not translate onto the computer model