This seminar report discusses augmented reality (AR) and its applications. AR combines real and virtual scenes by augmenting the real world with computer-generated perceptual information. The report describes Milgram's reality-virtuality continuum, compares AR and virtual reality, and discusses the hardware and software technologies used in AR like displays, sensors, image registration, and AR development platforms. It provides examples of AR applications in fields like archaeology, architecture, construction, and gaming. The report also outlines ways to experience AR and challenges like accuracy issues, information overload, and human perceptual problems.

1. Seminar Report
AUGMENTED REALITY
Rishabh Srivastava
CS-III
BBDESGI
1150810039
2013-14

2. What Is Augmented 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.

3. Milgram’s Reality-Virtuality
Continuum

4. AUGMENTED REALITY
VIRTUAL REALITY
Augmented Reality
versus
•System augments the real
world scene
•User maintains a sense of
presence in real world
•Needs a mechanism to
combine virtual and real
worlds
•Hard to register real and
virtual
Virtual Reality
•Totally immersive
environment
•Senses are under control of
system
•Need a mechanism to feed
virtual world to user
•Hard to make VR world
interesting

5. TECHNOLOGY USED
HARDWARE: The kind of hardware
used is determined by the process for
which the AR system is being developed.
• Processor
• Input Devices
• Display Device
• Sensors

6. HARDWARE
[Contd.]

7. HARDWARE
[Contd.]
Displays:
o HMDs
o Hand-Held Devices
o Glasses
o Contact Lenses

8. HMDs
US Airforce AR Simulation
A person with VR HMD

9. Hand Held Devices

10. GLASSES
Google Glass
AR Glass Prototype

11. GLASSES
[Contd.]

12. CONTACT LENSES
iScan Lens

13. SENSORS
o GPS sensors
o Solid State Compass
o Accelerometer
o Gyroscopes
o Proximity Sensors

14. SOFTWARE
“How realistically well the software
integrates the augmentation with the
real world.”
o Derive real-world coordinates through
the images from camera.
o The above process is called image
registration.
o The registered images are then
mapped with relevant virtual data by the
inbuilt computer.
o Simultaneous Localization and
Mapping (SLAM)

15. SOFTWARE
[Contd.]
o Augmented Reality Markup Language
(ARML) [developed within the Open
Geospatial Consortium (OGC)]
o AR SDKs:
o Metaio
o Vuforia
o Wikitude
o Layar

16. Layar Webpage
[ http://www.layar.com ]
Earthmine app

17. APPLICATIONS OF
AR
• ARCHAEOLOGY
• ARCHITECTURE
• CONSTRUCTION
• GAMING
• NAVIGATION
• SPORTS
• MILITARY

18. ARCHAEOLOGY
ARCHITECTURE
GAMING EARTHMINE APP
CONSTRUCTION

19. WAYS TO TRY AR YOURSELF:
• Layar Browser
• Google Glasses (App)
• Google Glass
• Copter Attack (Android Game)
• Augment (Android App)
• Nokia City Lens (Windows Phone)

20. PROBLEMS OF
AR
Visualization Problems:
• Measured location may not be
accurate.
• May cause visible registration error.
• Environment may be cluttered with
information and become unreadable.
• Real time rendering problems.

21. PROBLEMS OF
AR
Perceptual and Human Factors:
• Depth perception
• Adaptation
• Fatigue and eye strain

22. THANK
YOU