2006-01 cad/cam virtual reality/augmented realityocw.snu.ac.kr/sites/default/files/note/227.pdf ·...
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Prof. Sung-Hoon Ahn
2005-12-11
2006-01 CAD/CAMVirtual Reality/Augmented Reality
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What is VR/AR
Virtual Reality (VR)“The user becomes fully immersed into an artificial, three dimensional environment that is completely generated by a computer graphics.”Immersive virtual reality
< Example of virtual reality >
(a) 3D driving simulation (b) Hardware: HMD & Data glove
Source: Delta3D Source: General Reality Corp.
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What is VR/AR (cont.)
Augmented Reality (AR)The virtual objects display information that the user cannot directly with his own senses.The information conveyed by the virtual objects helps a user perform real-world task.
< Example of augmented reality >
Source: ARToolKit
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What is VR/AR (cont.)
Range of VR/AR technologies
Mixed Reality (MR)
Physical Reality
Virtual Reality
Augmented Reality (AR)
Augmented Virtuality (AV)
< Diagram from reality to virtuality >
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Interface of VR/AR
Head Mounted Display (HMD)Viewing tool for 3D virtual modelsFirst wearable deviceOften uncomfortable intrusiveness
(a) Glasses type
(b) Goggle type (c) Helmet type
< Various type of HMD >
Source: Micro Opitical
Source: Deocom Source: N-vision
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Interface of VR/AR (cont.)
Binocular Omni-Orientation Monitor (BOOM)Head-coupled stereoscopic display deviceDisplay device attached on multi-link system for tracking a head movement.
< Example of BOOM>
Source: Fakespace
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Interface of VR/AR (cont.)
Cave Automatic Virtual Environment (CAVE)Provides the illusion of immersion by projecting stereo images on the walls and floor of a room-sized cubeSeveral persons wearing lightweight stereo glasses can enter andwalk freely inside the CAVE
< Example of CAVE >
Source: Electronic Visualisation Laboratory at the University of Illinois in Chicago
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Input device of VR/AR (cont.)
Input devicesAllow interact with a virtual world
(a) Data glove (b) Space mouse
(d) Glasses type (e) Controller
(c) Projection Desk
Source: Fakespace
Source:3dconnexion
Source: MicrosoftSource: Micro Opitical
Source: 5DT
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Application
AR Desktop Environment (ARToolkit)
(a) AR desktop environment
(b) Remote AR Conferencing (c) Augmented Surfaces system
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Application (cont.)
Education
(a) Geometry education
(c) Magic book (real, augmented & virtual reality)
(b) AR museum
(d) Military Training Simulation
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Application (cont.)
Entertainment
(a) ARQuake (b) RV-Border Guards game,
(c) AR Lego (d) Human Pacman
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Application (cont.)
Other fields
(a) Printer maintenance (a) Surgery
Source: Columbia University Computer Graphics and User Interfaces Lab Source: ARToolKit
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Demo
AR Demo Application
Head-Mounted Display
< Icons with different marks > < Demo of sample icons >
< Hardware: HMD >