Differences between Augmented and Virtual Realities

1. Geethanjali institute of
science and technology
Augmented and virtual reality
Presented by
Shaik Hafeez
Bayana Abhishek

2. What is Augmented and Virtual
Reality ?
⦿ AR: A combination of a real scene
viewed by a user and a virtual scene
generated by a computer that
augments the scene with additional
information.
⦿ VR: Virtual Reality refers to a high-end
user interface that involves real-time
simulation and interactions through
multiple sensorial channels.

3. Why AR and VR?
⦿ AR create a system such that a user
CANNOT tell the difference between the
real world and the virtual augmentation
of it.
⦿ 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.

4. Augmented Reality vs.
Virtual Reality
Augmented reality:
➢ System augments the real world scene
➢ User maintains a sense of presence in
real world
Virtual reality:
➢ Totally immersive environment
➢ Visual senses are under control of system

5. According to AR and VR
Technology
▪ Head-Mounted Display (OHMD)
− A Helmet or a face mask providing the visual
and auditory displays.
− Use LCD or CRT to display stereo images.
− May include built-in head-tracker and stereo
headphones

6. Video see through OHMD

7. Advantages of
video see-through OHMD
⦿ Flexibility in composition strategies
⦿ Wide field of view
⦿ Real and virtual view delays can be
matched

8. Applications of AR
Medical Entertainment

9. Applications of VR
▪ Education & Training
› Driving simulators.
› Flight simulators.
› Ship simulators.
› Tank simulators.
▪ Manufacturing
› Easy to modify
› Low cost
› High efficient

10. Current problems and future
works
☹ Cyber sickness / simulator sickness
☹ Low-fidelity
☹ Expensive
☺ High-fidelity system
☺ Cost-saving
☺ Collaborative

11. Summary
▪ Visualization of complicated, large data
is helpful for understanding and analysis.
▪ VR and AR offers us a new way to
interact with computer.
▪ These two enables us to experience the
virtual world that is impossible in real
world.
▪ VR and AR is changing our life,
eventually VR will increasingly become a
part of our life.

12. Reference
◆ [1] What is Virtual Reality?,
http://vr.isdale.com/WhatIsVR/frames/What
IsVR4.1.html.
◆ [2] Augmented and Mixed Reality,
http://www.mic.atr.co.jp/~poup/research/
ar/.
◆ [3] Virtual Reality Applications,
http://vresources.jump-
gate.com/applications/applications.shtml

13. Thank you