1. InteractIve MultIMedIa
and vIrtual realIty
By
SuprabhaBhadran

2. MultIMedIa
The notion of Multimedia
Consistsof two words:
Multi = many; much;
Medium = An intervening substancethrough which
something istransmitted or carried on.
“Multimedia can beany combination of text,
graphics, sound, animation and video, to
effectively communicateideasto usersdelivered
by computer or any other electronic devices.”

3. • “Multimediaisthepresentation of a(usually
interactive) computer application,
incorporating mediaelementssuch astext,
graphics, video, animation and sound on
computer.” - Stephen McGloughlin

4. • Multimedia isusually recorded & played,
displayed or accessed by computerized and
electronic devices, but can also bepart of a
liveperformance.
• Multimedia also describeselectronic media
devicesused to storeand experience
multimediacontent.
A PowerPoint presentation used in a corporate office

5. Why MultIMedIa?
• Based on EdgarDale (Cone Of Learning), on
average, people remember:
• 10% of what they read,
• 20% of what they hear,
• 30% of what they see,
• 50% of what they hearand see,  multimedia
approach
• Multimedia rich elements, multi-sensory delivery
system can facilitate greaterretention of new
knowledge.

7. CharaCteristiCs of
MultiMedia
A Multimediasystem hasfour basic
characteristics:
– Multimediasystemsmust becomputercontrolled.
– Multimediasystemsareintegrated.
– Theinformation they handlemust berepresented
digitally.
– Theinterfaceto thefinal presentation of mediais
usually interactive.

8. types of MultiMedia
Linear Multimedia
– Usershavevery littlecontrol over thepresentation.
– When it isnot interactiveand theusersjust sit and
watch.
– Thepresentation normally playsfrom thestart to
end or even loopscontinually to present the
information.
– E.g. A movieisacommon typeof linear
multimedia

9. Nonlinear/InteractiveMultimedia
– Usersdictatetheflow of delivery.
– User control theflow of theshow.
– Theuserscontrol thedelivery of elementsto
control thewhat and when.
– Usershavetheability to movearound or
follow different path through theinformation
presentation.
– e.g., computer game, computer-based
training, information archive(encyclopedia).

10. appliCations of MultiMedia
• Multimediafindsitsapplication in variousareas, afew
are:
– Education
• Computer-based trainings, referencee-books, documentsimaging,
distant learning.
– Entertainment
• Interactivegames
– Medicine
• Training to doctorsthrough virtual surgery
– Business
• Employeetraining, advertisements, customer support, selling
products.
– Arts
• Art exhibitions, literaturepresentations
– Scientific Research
• Modeling and simulations

11. VIRTUAL REALITY
Virtual reality (VR) isaterm that appliesto
computer-simulated environmentsthat can
simulatephysical presencein placesin thereal
world, aswell asin imaginary worlds.
Or
“A computer generated, immersive(or wide
field), multi-sensory information program
which tracksauser in real time.”

12. • Virtual reality isoften used to describeawidevariety
of applicationscommonly associated with immersive,
highly visual, 3D environments. Thedevelopment of
CAD software, graphicshardwareacceleration, head
mounted displays, databasegloves, and
miniaturization havehelped popularizethenotion.
U.S.Navy personnel using a VR
parachute trainer

13. • VR consistsof acomputer-generated, multi-
dimensional environment and interfacetools
that allow usersto:
1)immersethemselvesin theenvironment,
2) navigatewithin theenvironment, and
3) interact with objectsand other inhabitantsin
theenvironment.

14. APPLICATION
Theusageof VR in atraining perspectiveisto
allow professionalsto conduct training in a
virtual environment wherethey can improve
upon their skillswithout theconsequenceof
failing theoperation.
Marines training with the Future
Immersive Training Environment

15. • VR playsan important rolein combat training for the
military. It allowstherecruitsto train under a
controlled environment wherethey areto respond to
different typesof combat situations.
• Virtual reality isquickly finding wideacceptancein
themedical community asresearchersand clinicians
alikebecomeawareof itspotential benefits.
• Several pioneer research groupshavealready
demonstrated improved clinical performanceusing
VR imaging, planning and control techniques.