virtual Reality technology

2. Presented By
G.Dileep
N.Saikumar

3.  Introduction
 History
 Principle
 Architecture
 Components
 Types
 Architecture
 Applications
 Advantages & Disadvantages
 Conclusion

4.  In 1938, French avant-garde playwright Antonin
Artaud described the illusory nature of characters and objects
in the theatre as "la réalité virtuelle" in a collection of
essays, Le Théâtre et son double. The English translation of this
book, published in 1958 as The Theater and its Double, is the
earliest published use of the term "virtual reality". The term
"artificial reality", coined by Myron Krueger, has been in use
since the 1970s. The term "virtual reality" was first used in a
science fiction context in The Judas Mandala, a 1982 novel
by Damien Broderick.
 Widespread adaption of the term "virtual reality" in the
popular media is attributed to Jaron Lanier, who in the late
1980

5. Virtual Reality means feeling the imaginary(virtual) world,
Rather than real one. The imaginary world is a simulation
running in a computer
Virtual Reality refers to a high-end user interface that
involves real-time simulation and interactions through multiple
sensorial channels.

6.  Virtual Reality is the term is used for computer
generated 3D environments that allow the user to enter
and interact with the alternate realties.
 The definition of “virtual” is near and “reality” means
what we experience as a human being.

7.  Why VR?
 VR is able to immerse you in a computer-generated world
of your own making: a room, a city, the interior of human
body. With VR, you can explore any uncharted territory of the
human imagination.

8.  In 1957 visionary cinematography “Morton Heilig” built a single user
console called Sensorama. This enabled the user watch television in
3 dimensional ways.

10. The Virtual Reality System works on the following principle - It
tracks the physical movements in the real world, then a
rendering computer redraws the virtual world to reflects those
movements.
The updated virtual world is sent to the output (to the user in
the real world).
 In this case, the output is sent back to a head mounted
display.
Hence, The user feels "immersed" in the virtual world - as if
she was in the virtual world itself as all she can see is her
rendered movements in the virtual world.

12.  Immersive Virtual Reality
 Fully Immersive VR
 Semi Immersive VR
 Non-Immersive Virtual Reality
 Window On World Virtual Reality

13.  Desktop based virtual reality involves displaying
a 3 dimensional virtual on regular desktop without any
specialized movement tracking enviroments.

14.  Large display but doesn’t surround the user.
 It uses the video cameras to track the image of the users in
a virtual world where you can also pick up or move objects.

15.  Immersion into virtual reality is a perception of being
physically present in a non-physical world.
 Elements of virtual environments that increases the
immersiveness of the experience:
1. Continuity of surroundings
2. Conformance to human vision
3. Freedom of movement
4. Physical interaction
5. Physical feedback

18.  Input devices
 Output devices

19. Prio VR Razer hydra Leap motion
Stem Magic wand Control VR

20. Headset 3D audio
Sensing gloves Helsinki

21. 1. Virtual Reality in the military

22. 2.Virtual Reality in Healthcare

23. 3.Virtual Reality in Education

24. 4.Virtual Reality in Scientific Visualization

25. 5.Virtual Reality in Entertainment

26. Advantages Disadvantages
 Virtual reality creates a realistic
world.
 It enables user to explore
places.
 Through virtual reality user can
experiment with an artificial
environment.
 Virtual Reality make the
education more easy and
comfortable.
 The equipments used in the
virtual reality and very
expensive.
 It consists of complex
technology
 In Virtual Reality environment
we cant move by our own like in
the real world.

27.  Virtual Reality is a growing technology.
 PC and specialized hardware are getting better and faster
because of development in VR.
 May be 3D interfaces will replace the windows based ones?
 Huge demand for VRML(Virtual Reality Modeling Language)
Programmers in near future.
 Revolution in gaming industries.

29.  VR introduces a new way of interacting with computers.
 The best of VR is yet to come.
 Web is very suitable for VR applications, but the proper
technology is not yet there.