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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