an introduction to virtual reality · virtual reality no one common definition, but common...
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An Introduction to Virtual Reality
Humans and Automation SeminarSpring 2002Jessica J. Márquez
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Introduction to Virtual RealityBrief Background– Definition– Hardware– Applications
Reading: “Human Factors Issues in Virtual Environments: A Review of the Literature” Presence, Vol. 7, No. 4, August 1998, 327 - 351
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Virtual RealityNo one common definition, but common characteristicsTrying to mimic real worldBeyond the flat monitor*Immerse in 3-D visual world
*Many applications are using flat monitors
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Head Mounted Display (HMD)
ImmersiveexperienceStereo display– Two miniature
screens– Depth perception
Spiffier HMD :
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Motion TrackersKeep track of position– Inertial boxes– Sonic Discs– Potentiometers
Head trackers & body trackers
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BOOMBinocular Omni-Orientation MonitorStereoscopic displayGuidance of the box by userTracking: Potentiometers on arm
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CAVECave Automatic Virtual EnvironmentIllusion of immersion by projecting stereo images on the walls and floor of room
Stereo glasses and head tracking Free to walk anywhere within area
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More CAVE pictures
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Input DevicesData glovesJoysticksHand-held wandsBody sensors
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Sensor Glove
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Haptic Feedback Force-feedback deviceFeel virtual solid objects
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ApplicationsEntertainment: Games!Augmented Reality– Superimposing display
TrainingRemote RoboticsDistributed CollaborationVisualization
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Augmented Reality
HUD’s on cars
AR Museums
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More Augmented Reality
Information Visualization?
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Visualization
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Distributed Collaboration
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Telemedicine
Visualization of medical condition
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ResearchNASA VR Mars navigation simulation
One third gravity (negative pressure)
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Other… Anything else??Education, Teaching, TrainingTherapy: spider, heights
– http://www.hitl.washington.edu/research/exposure/
Navy Airplane simulator