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HCI

HCI. Human Computer Interaction. Marwan Al- Namari. Week 9. What is VR.

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HCI

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  1. HCI Human Computer Interaction Marwan Al-Namari Week 9

  2. What is VR Virtual Reality (VR) is the illusion of a three-dimensional, interactive, computer-generated reality where sight, sound, and sometimes even touch are simulated to create pictures, sounds, and objects that actually seem real.

  3. Major Concepts • VR must allow the user to view the environment from any point and at any angle • VR must allow the user to interact with objects in the environment.

  4. History • Ivan Sutherland (1960) • First head mounted display and head tracking system • MIT (1983) • “Put That There” • “The Aspen Movie Map” • UNC (1986) • Using “virtual world” term • Walkthrough, Pixel Flow & Nanomanipulator systems

  5. History (cont’d) • NASA Ames Research Center • HMD, VPL Datagloves and BOOM • Spatial (3D) Sound • Super Cockpit • VPL • First Commercial VR Hardware & systems • “Reality Build for Two” (RB2) • “Body Electric”

  6. History (cont’d) • Myron Krueger • GlowFlow, Meta play,Psychic space & Videoplace • Naval Postgraduate School • SIMNET • NPSNET

  7. Types of VR- Immersive VR • Use of Special Purpose Equipment • Feel of Presence

  8. Types of VR-Window on the World (WoW) • Also known as Desktop VR • Use of a monitor to display the visual world • Does not require special hardware • Low Cost Low Performance Less Immersion ø ø

  9. Types of VR-Telepresence • Real-time telepresence Interactions are reflected to some real world objects. • Delayed telepresence Interactions are recorded, and after satisfaction is applied to the real-world object.

  10. Types of VR-Augmented VR • Computer generated inputs merged with the user’s view of the real world • Components of VR -VR Hardware -VR Software

  11. VR Hardware • Primary user input interfaces • Tracking interfaces • Visual interfaces • Auditory interfaces • Haptic interfaces • Olfactory interfaces

  12. Primary Interfaces • Keyboard, Mouse, Joystick • 3D Pointing Devices • Spaceball • CyberWand • Ring Mouse • EGG

  13. Primary Interfaces (cont’d) • Whole-hand and body input • 5th Glove • Handmaster • ArmMaster • TCAS Dataware

  14. Tracking Interfaces • Measure head, body, hand or eye motion • Major Characteristics • Resolution • Accuracy • System Responsiveness • Sample rate, data rate, update rate and latency • Major Technologies • Magnetic • Acoustics • Optical

  15. Tracking Interfaces (cont’d) • Head & Body Tracking • Polhemous IsoTrak II & FastTrak • Flock of Bird • VideoDesk • Eye Tracking • BioMuse • DPI Eyetrackey

  16. Visual Interfaces (cont’d) • Head Mounted Display (HMD) • Datavisor 10x HMD • VR4000 • I-glasses! • VFX1 • BOOM

  17. Visual Interfaces (cont’d) • Stereoscopic Glasses • Shutter glasses • Passive glasses • Autostereoscopic • HDVD

  18. Auditory Interfaces • Auralization • 3D simulation of a complex acoustic field • Sonification • Audible display of data • Speech Recognition • Some products • Acoustetron II • RSS-10 Sound Space Processor • Q products

  19. Haptic Interfaces • Tactile (touch) • CyberTouch • Univ. of Salford • Kinesthetic (force) • HapticMaster • PHANToM

  20. Olfactory Interfaces • Electronic Nose • Storage Technologies • Liquid • Gel • Microencapsulation • Some Products • BOC Group Olfactory Delivery System • Univ. of Wollongong eNose

  21. Software Components • Input Process • Simulation Process • Rendering Process • World Database

  22. Interaction Techniques “Simple” Virtual Hand Ray-casting

  23. Interaction Techniques (cont’d) Spotlight Aperture

  24. Interaction Techniques (cont’d) Fishing reel Sticky Finger Scaled-world grab

  25. Navigation Techniques • Steering : direction and velocity • hand-directed • gaze-directed • physical devices (steering wheel, flight sticks) • Target-based • point at object, list of coordinates • Route planning • place markers in world Mine, 1995

  26. VR Applications Education Crossing street Construct3D

  27. VR Applications Recreation

  28. VR Application Design

  29. VR Application Simulation Being 747 Flight Simulation

  30. VR Application User Interface WNMS

  31. VR Application Telesurgery Augmented surgery Telepresence TeleRobotics

  32. VR Application Information Visualization Quick Sort Acetic Acid

  33. VR Application Entertainment Virtual racing

  34. VR Application Military

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