Virtual Reality(MAIN)
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Transcript of Virtual Reality(MAIN)
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BY
PRAVEENA.A
UMA MAHESHWARI.G
ANUPRIYA.V
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VIRTUAL REALITY
Virtual reality (VR) is a technology whichallows a user to interact with a computer-simulated environment, be it a real orimagined one.
Virtual reality has gone by many other namesbesides virtual environments. Other terms forvirtual reality include cyberspace (a word
invented by science fiction author WilliamGibson), artificial reality, augmented realityand telepresence.
http://en.wikipedia.org/wiki/Computer-simulatedhttp://en.wikipedia.org/wiki/Computer-simulatedhttp://computer.howstuffworks.com/augmented-reality.htmhttp://computer.howstuffworks.com/augmented-reality.htmhttp://computer.howstuffworks.com/augmented-reality.htmhttp://computer.howstuffworks.com/augmented-reality.htmhttp://en.wikipedia.org/wiki/Computer-simulatedhttp://en.wikipedia.org/wiki/Computer-simulatedhttp://en.wikipedia.org/wiki/Computer-simulated -
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INTRODUCTION
Visualize , Manipulate , Interact withcomputer and complex data
Realistic representation of physical
environment Experiences new things that are
impossible
Needs sensors & transducers to monitorusers action and feedback signal
Immerse the participant in virtual world
Cognitive effects for products.
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REQUIREMENTS
Computer for visual and sound effects
with sensory perception
Fast response, wide range of sensoryinputs
High speed rendering of multimedia
objects Sustained performance demands on
hardware
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Tool to support a design
Product manufacturing
Product maintenanceCAD/CAM
Neural networks
Heritage and ArchaeologyVirtual Reality Reproduction
Mass media
Fiction books
TelevisionGames
Health care education
APPLICATIONS
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US Army Research Lab's ODT with CAVE Graphics
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Using virtual therapy to treat a patients fear of flying.
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SHARED VIRTUAL
ENVIRONMENT
Needs BOOM device, CAVE system,
head mounted display , special
goggles, data gloves
Presents virtual human (avatar) to
other participants
People in various place can interactand communicate in visual world
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SHARED VIRTUAL ENVIRONMENT
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A BOOM Display used by NASA to emulate space
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The Nintendo Power Glove used
in virtual reality gaming
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A data suit to provide user
input
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VirtuSphere - a virtual reality unit that allows the user to move freely in any direction.VirtuSphere can serve many purposes, including exercise, video gaming, militarytraining, and virtual museum tours.
The VirtuSphere is a creation of Nurulla and Ray Latypov, whose company, VirtuSphereInc, is based in Issaquah, Washington.
http://en.wikipedia.org/wiki/Issaquah,_Washingtonhttp://en.wikipedia.org/wiki/Issaquah,_Washingtonhttp://en.wikipedia.org/wiki/Issaquah,_Washingtonhttp://en.wikipedia.org/wiki/Issaquah,_Washington -
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A head-mounted
display
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COMPONENTS
VIRTUAL SOFTWARE
Allows user to develop case tools
Uses any software engineeringmethodology
VIRTUAL HARDWARE
Provides simple and easy interfacefor VR
Nowadays potential market for VR
applications is huge
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VR DEVICES
Color head coupled display
Monochrome head mounted display
Data glove
Virtual keyboard
Virtual screen
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VIRTUAL KEYBOARD
Based on optical recognition enablesto tap images of the keys
Uses infrared and laser technology
Feed into compatible PDA, smartphone, laptop or PC
Invisible circuit
Full size virtual QWERTY keyboard
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VIRTUAL KEYBOARD
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FEATURES
Small size
Light weight
Rechargeable battery
Power save mode
Audible click feature
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TECHNICAL DETAILS
Windows 98, 2000, NT, XP, Palm OS, PPC
Light source Red diode laser
Non reflective, opaque surface
Multiple keystroke support
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ADVANTAGES
Quick & Efficient
Overcome the difficulties in tiny
keyboard & handwriting recognition
Enhances communication, computing
& environment
Cost effective
Reduces maintenance cost
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APPLICATION
Space saving
Industrial environment
Medical environment
Home
transport
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SXI CELLPHONE WITH VIRTUAL KEY BOARD
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VIRTUAL SCREEN
User defined set of active application
Resides in status bar in MacOS X
If user changes VS, applications that
are visible is hidden
Hidden application that belongs to new
virual screen are shown
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FUTURE DEVELOPMENTS
It is unclear exactly where the future of virtual
reality is heading. In the short run, the graphicsdisplayed in the HMD will soon reach a point of
near realism. The audio capabilities will move into a
new realm of three dimensional sound. This refers
to the addition of sound channels both above andbelow the individual or a Holophony approach.
Within existing technological limits, sight and sound
are the two senses which best lend themselves tohigh quality simulation. There are however attempts
being currently made to simulate smell.
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Tele-immersion will allow us to manipulate holographic
projections as if they were real objects.
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CONCLUSION
Virtual H/W is commercially available
Can enter into the desired environment
though it is impossible in real world
Both virtual H/W and S/W are handledeasily
Cost effective
Used to represent industrial components,architectural projects and civil engg
structures
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