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담당교수: 양현승(한국과학기술원전자전산학과)
E-mail: hsyang@aim.kaist.ac.kr
Topics
1. Introduction to VR
2. Interface H/W
3. Augmented Reality / Virtuality
4. Seamless Registration
5. Real-time Rendering
6. Multi-modal Interaction
7. Networked VR
8. Future of VR
Introduction to VR
담당교수: 양현승(한국과학기술원전자전산학과)
E-mail: hsyang@aim.kaist.ac.kr
Contents
VR이란?
History
VR관련분야
Applications (overview)
What is VR ?
VR 〓 3차원컴퓨터시뮬레이션시각,청각,촉각,운동감등의감각을느끼게해줌
현장감을느끼게해줌
Realistic Human Computer/Machine Interface via Multiple Sensory Feedback
A Computer-Generated, 3D Spatial Environment in which users can participate in Real-time
Virtual Reality
Virtual Reality
Immersive (like IMAX, dome projection)
Interactive (like computer game)
Multi-sensory
Viewer-centered
3D
The combination of technologies required to build virtual environments
VR 이란?
가상환경분류
Technologically Mediated Experience
World Human
TechnologicalMediation:
transmitfilter
recordsimulate
sensor
actuator
display
measuredaction
direct action
direct perception
가상환경분류
World HumanModel
World HumanModel
Human
Human
Model
Human
Basic VR
AR/Telepresence
Networked VR
Reality-Virtuality(RV) Continuum
Mixed RealityMixing the presentation of real and virtual world to the user
Augmented Reality (AR)Augmented Virtuality (AV)
ContinuumDegree of mixingReal MR VR
Miligram coined the term “Augmented Virtuality” to identify systems which are mostly synthetic with some real world imagery added such as texture mapping video onto virtual objects
Miligram coined the term “Augmented Virtuality” to identify systems which are mostly synthetic with some real world imagery added such as texture mapping video onto virtual objects
Reality-Virtuality(RV) Continuum
AR AVReal World Virtual World
3 I of VR
Immersion
Integration Interaction
VR History
History of VR
1960년대말 early development of computer graphics
1965 Sutherland's paper "The Ultimate Display"
1968 head-mounted 3-D display (Sutherland)
1979 Polhemus 3D tracker
1985 NASA's "homebrew" HMD
1989 VPL's HMD commercially available
1991 Zimmerman/Lanier data entry glove patent
1993 Silicon Graphics Reality Engine
History
1’st stage: some visionariesMorton Heilig
Ivan Surtherland
Myron Krueger
William Gibson
Heilig’s sensorama
Sutherland’s 1965 vision
Display as a window into a virtual world …
Improve image until the picture looks real …
Computer maintains world model in real time …
User directly manipulates virtual objects …
Manipulated objects move realistically …
Immersion in virtual world via head-mounted display …
Virtual world also sound real, feel real …
2’nd stage: technology development for specific purposes
training simulator
space exploration
tele-operation
History
3’rd stage: VR as the general-purpose technology
Jaron Lanier
VR industry
VR academia
History
Next stage: Toward a scientific discipline
computational reality
a new computing paradigm
a new media
a new art form
representation, creation and operation of virtual worlds
History
VR 관련 분야
VR
VR 관련분야CG
Vision/Optics
AI
Electronics
Mechanics
Design/Art
VR technologies
Character CRT
Graphic CRT
Virtual console
Virtual Reality
Tele-conference
TV phone
Telephone
Keyboard
Mouse tablet
3D mouse
Computersimulation/visualization
Tele-Existence
Tele-Operation
Computergraphics
RealtimeCG
3D CAD
ComputerAided Design
Virtual products
design
All technologies meet together at VR !!
VR Applications
Education/Training
DesignEngineering
Medicine
ScientificVisualization
Entertainment
Communication
ProductsEngineering
VR application
Generic VR System
Various Display Systems
Various Haptic Interfaces
Pinch GloveForce feedback mouse
Wand
Medicine force feedbackSensor Arm Force feedback joystick
VR Applications
Application domains
design, manufacturing & marketing
medicine, health care
hazardous operations
training
entertainment
military
experimental psychology
education
information visualization
tele-communication, virtual tour
Applications
Virtual reality is useful for trying things that are impractical to try in the real worldReasons for impracticality
CostSafetyInvisibilityLocationTime
Example Applications
Prototyping working environmentsVirtual MedicineEntertainment
Virtual games
Military SimulationMedia Art
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