Motion CaptureMotion CaptureCS294-7CS294-7
Jacqueline TakeshitaJacqueline Takeshita
Mindy LueMindy Lue
What is motion capture?What is motion capture?
Technique that digitally records Technique that digitally records movements using markers at jointsmovements using markers at joints
Software records positions, angles, Software records positions, angles, velocities, accelerations, and impulsesvelocities, accelerations, and impulses
Also known as motion trackingAlso known as motion tracking
Where is it used?Where is it used?
Education – how the body movesEducation – how the body movesTraining – suggest ways to improve Training – suggest ways to improve
performance performance Sports - simulationsSports - simulationsComputer AnimationComputer AnimationVideo GamesVideo Games
How it WorksHow it Works
Mechanical – performer wears sensorsMechanical – performer wears sensorsOptical – performer wears reflective dots Optical – performer wears reflective dots
followed by several camerasfollowed by several camerasElectromagnetic – performer wears an Electromagnetic – performer wears an
array of magnetic receivers which track array of magnetic receivers which track location with respect to transmitterlocation with respect to transmitter
AdvantagesAdvantages
Saves timeSaves timeCreates natural realistic movementsCreates natural realistic movementsActor can play multiple roles in a single Actor can play multiple roles in a single
filmfilmAllows for rotating effects and multiple Allows for rotating effects and multiple
anglesanglesCharacters can be blended to digital Characters can be blended to digital
environmentsenvironments
DisadvantagesDisadvantages
Limited to movements that are Limited to movements that are anatomically possibleanatomically possible
Specific hardware and programs needed Specific hardware and programs needed to obtain and process datato obtain and process data
Technology upgraded quickly – versions Technology upgraded quickly – versions become obsolete every few yearsbecome obsolete every few years
Real life performance may not translate Real life performance may not translate onto the computer modelonto the computer model
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