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ar-mr - 3D User Interfaces for the Real World Lecture#18...

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1 Spring 2011 CAP6121 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. 3D User Interfaces for the Real World Lecture #18: Augmented/Mixed Reality Spring 2011 Joseph J. LaViola Jr. Special thanks to Ivan Poupyrev CAP6121 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Spring 2011 Definitions Augmented reality : Refers to a system in which the user views and acts within an enhanced version of the real world. The enhancements are virtual (computer- generated), and can include objects or information. Mixed reality : Refers to a system that combines real and virtual objects and information.
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2 CAP6121 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Spring 2011 Mixed Reality Continuum Reality Virtuality Augmented Reality (AR) Augmented Virtuality (AV) Mixed Reality (MR) Milgram (1994) CAP6121 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Spring 2011 AR/MR Application Areas Maintenance Training Tourism / Cultural heritage Design / construction Battlefield information display Entertainment
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3 CAP6121 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Spring 2011 AR/MR Technology - Displays See-through HMDs: Video see-through Optical see-through Handheld displays Projection CAP6121 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Spring 2011 AR/MR Technology - Tracking Optical / vision-based tracking AR toolkit ensures portability large number of tracked objects Registration and low latency are crucial for AR systems
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4 CAP6121 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Spring 2011 AR/MR technology - Tracking Sourceless inertial orientation tracking GPS position tracking enables mobile outdoor AR Markerless tracking CAP6121 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Spring 2011 Mobile outdoor AR “Backpack systems” User wears/carries: Computer HMD Inertial tracker GPS unit/antenna Input device(s)
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