Augmented reality (AR) enhances the real world by adding interactive virtual elements, contrasting with virtual reality's fully immersive environments. AR applications span various fields including advertising, education, and medical, providing users with enhanced information and experiences. Key technologies include handheld devices, spatial displays, and future innovations such as AR-enabled contact lenses and 'holodecks'.

1. By Nisha Gupta

5. WHAT IS AUGMENTED
REALITY??
• a real scene viewed by a user and
• a virtual scene generated by a computer
that augments the scene with additional
information
• interactive in 3D
• Interactive in real-time

6. • Combines real and virtual
world aspects
e.g., Real desk with virtual lamp and two virtual chairs
(ECRC)

7. HOW AUGMENTED REALITY IS DIFFERENT
FROM VIRTUAL REALITY
AUGMENTED REALITY VIRTUAL REALITY
• 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
• Totally immersive
environment
• Senses are under control
of system
• Need a mechanism to
feed virtual world to user
• Hard to make VR world
interesting

9. Milgram’s Reality-Virtuality Continuum
• Virtual and real environments are at opposite ends of the reality
continuum
• Augmented reality is closer to the real environment
• Basically, AR is the real world with benefits

10. CHARACTERSTICS
 Besides adding objects to a real environment, AR
also has the potential to remove them.
 Blending the real and virtual poses problems with
focus and contrast and some applications require
portable AR systems to be truly effective.
 AR might apply to all senses, not just sight

11.  AR could be extended to include sound.
 Another example is haptics.
 Gloves with devices that provide tactile feedback might augment
real forces in the environment. For example, a user might run his
hand over the surface of a real desk which can augment the feel
of the desk, perhaps making it feel rough in certain spots.

12. AR DISPLAYS

13. • Combines and displays physical world images
and virtual graphical objects
HEAD ATTACHED DISPLAYS
• Some displays can automatically switch between 2D
and 3D representations.
• Head-up displays are currently used in fighter jets
that include full interactivity, including eye pointing.

14. Handheld Displays
• Small handheld computing device
• Uses global positioning systems (GPS))
• Smartphones with phone
apps are the most
commonly used handheld
devices.
• Cell phones now have cameras
and screens allowing the
combination of real world data
to intertwine with virtual
data.

15. Spatial Displays
• Nothing to wear and/or carry
• Uses digital projectors to display
information
• Marker-based and markerless
devices
• The AR Hand Phone allows the
user to call a friend using an AR
keypad without removing their
cell phone from their pocket or
purse.
• The AR Keyboard takes the place of
a physical computer keyboard

17. Advertising Applications
Promote products via interactive AR
applications
Movie character
speaks to you when
you pass her
outdoor movie
poster
City sites tour

18. Marketing Applications
• Assist consumers on location with ratings, reviews, and
other information
• Marketing Applications assist consumers on location when shopping
and dining by providing ratings, reviews, menus, and other types
of information.

19. ART APPLICATIONS
• Create art over real art
• Simulate construction projects
• Create virtual objects on locations
The water pouring out of the windows of this
high-rise building. This is typical special effects
for movies.

20. EDUCATIONAL APPLICATION
• Generate models in
different settings
• Create 3D
graphics of
curriculum
content
• Architect students could use
them to show scale models of
buildings cutting time down for
construction and presentation
proposal.

21. • Have books come alive
• Provide powerful
contextual,
explorative, and
discovery learning
experiences
• Facilitate
collaboration
among
distributed team
members
• AR books can be used to enhance
learning by showing globes that
pop out of the page, but the books
are printed normally

22. OTHER APPLICATIONS
 Astronomy
 Architecture
• Google’s Sky Map
• P Universe
 Computer Science
• AR Sights
Sky map

23. FUTURE OF AR
 Expanding a PC screen into the real world
 “Holodecks”
 Replacement of cell phone and vehicle
 navigation screens

24.  AR-enabled contact lenses
 Virtual retinal displays
 Virtual everything Virtual gadgetry
Subscriptions to group-specific AR feeds

25. • Used in labs where students can learn more about
the experiments they are participating in.
Military:
• The Office of Naval Research has sponsored AR
research
• AR system could provide troops with vital
information about their surroundings
Medical:
• Superimpose an image from an MRI onto a
patient’s body.
• This might allow surgeons to pinpoint a tumor to
remove.
Education:

27. THANK YOU