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Reality Continuum Benjamin Lok University of Florida

Reality Continuum Benjamin Lok University of Florida. October 2 nd. What is VR?. http://www.wiihaveaproblem.com/show_article.php?id=161. Ivan Sutherland’s The Ultimate Display.

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Reality Continuum Benjamin Lok University of Florida

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  1. Reality ContinuumBenjamin LokUniversity of Florida October 2nd

  2. What is VR? http://www.wiihaveaproblem.com/show_article.php?id=161

  3. Ivan Sutherland’s The Ultimate Display “Don’t think of that thing as a screen, think of it as a window, a window through which one looks into a virtual world. The challenge to computer graphics is to make that virtual world look real, sound real, move and respond to interaction in real time, and even feel real.”

  4. Virtual Reality • Ideal for VR is that everything you experience is computer-generated.

  5. Clinical Virtual Reality The direct use of VR as a tool in the treatment or assessment of psychological and physical disorders. (HITLab – UW)

  6. Best VR? Why? What are some goals for VR?

  7. Virtual-ality Continuum • Reality • Mixed Reality • Augmented Reality • Augmented Virtualality • Virtual Reality All Virtual Objects All Real Objects

  8. Not everything is real USC ICT Flatworld Paul Milgrim

  9. Classical Simulation • Classical simulation is a mix of real objects and computer generated stimuli. All Virtual Objects All Real Objects

  10. Mixed Reality • Merging of the real and virtual worlds

  11. Why MR? • Everything virtual not necessarily good • Examples? • Discuss a VR system to teach you how to change a lightbulb? • Benefits of real objects • Haptics • Active • Passive • Task Performance • Affordance

  12. Augmented Virtualality

  13. MR Components • Merged Space • Real World • Virtual World • Registration System • Example open Source library • ARToolKit • University of Washington HITLAB • Can be 1st person or 3rd person

  14. TabletPC User Interface USB Camera Graphics Rendering Engine OpenGL Marker Tracking (ARToolKitPlus) Data FLow

  15. Dynamic Component to your Physical Structures 1 marker for registration 1-4ish markers for interaction

  16. Anethesia Machine

  17. Other MR Systems • Entertainment • Engineering • Medical

  18. Other MR Systems

  19. Physical Simulation • Human Patient Simulator

  20. Mixed Reality Humans • Virtual Humans • Tangible Interfaces

  21. Artificial Reality (Myron Kruger) Responsive Environment • Is an environment where human behavior is perceived by a computer which interprets what it observes and responds through intelligent visual and auditory displays All Virtual Objects All Real Objects

  22. Augmented Reality • A combination of a real scene viewed by a user and a virtual scene generated by a computer that augments the scene with additional information. Ultrasound Visualization Research at UNC – Chapel Hill All Virtual Objects All Real Objects

  23. Displaying data over the real world • Information • Heads Up Display • 3D

  24. Augmented Reality • Two-types • Optical See-Through • Video See-Through • Difficulties with AR/MR • Registration • User’s eye • Real and Virtual spaces • Tracking (additional to VR) • Display • Interfaces • Occlusion

  25. Major AR Systems • Touring Machine • Feiner, Columbia

  26. Major AR Systems • AR Toolkit+ • Most popular AR system • Uses printable markers • Support for many video devices • Use as registration & interface element • Plasticity • HMD • TabletPC • PDA • Cellphone

  27. AR Systems Leverage • Real world knowledge • Task training • Situational context • Less Modeling

  28. Conferences • IEEE Virtual Reality • ACM Virtual Reality, Software, and Technology • IEEE/ACM International Symposium on Mixed and Augmented Reality • Medicine Meets Virtual Reality

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