a technology that superimposes a computer-generated image on a user's view of the real world, thus providing a composite view

1. AUGMENTED
REALITY
Shyam Sasi

2. Introduction
An enhanced version of reality where live direct or
indirect views of physical real-world environments
are augmented with superimposed computer-
generated images over a user's view of the real-
world, thus enhancing one’s current perception of
reality.
The origin of the word
augmented is augment, which means to add
something. In the case of augmented reality (also
called AR), graphics, sounds, and touch feedback
are added into our natural world.

3. Types of Augmented Reality
Augmented Reality (AR) Categories
Several categories of augmented reality
technology exist, each with varying differences
in their objectives and application use cases.
 •Marker Based Augmented Reality
 •Marker less Augmented Reality
 •Projection Based Augmented Reality
 • Superimposition Based Augmented Reality

4. Marker Based Augmented Reality
Marker-based augmented reality (also called
Image Recognition) uses a camera and some
type of visual marker, such as a QR/2D code, to
produce a result only when the marker is
sensed by a reader

5. Marker less Augmented Reality
As one of the most widely implemented applications of
augmented reality, marker less (also called location-
based, position-based, or GPS) augmented reality, uses
a GPS, digital compass, velocity meter, or accelerometer
which is embedded in the device to provide data based
on your location.

6. Projection Based Augmented Reality
 Projection based augmented reality works by
projecting artificial light onto real world surfaces.
Projection based augmented reality applications allow
for human interaction by sending light onto a real
world surface and then sensing the human
interaction (i.e. touch) of that projected light

7. Superimposition Based Augmented
Reality
 Superimposition based augmented reality either
partially or fully replaces the original view of an object
with a newly augmented view of that same object

8. Key Components to Augmented Reality
Devices
 Augmented realities can be displayed on a wide
variety of displays, from screens and monitors, to
handheld devices or glasses. Google Glass and other
head-up displays (HUD) put augmented reality
directly onto your face, usually in the form of glasses

9. Key Components to Augmented Reality
Devices
 Sensors and Cameras
 Projection
 Processing
 Reflection

10. APPLICATIONS
 Military
 Entertainment/gaming
 Maintenance and repairing
 Navigational
 Medical
 Architecture & Education

11. Virtual reality
Virtual reality (VR) typically refers to computer
technologies that use software to generate the
realistic images, sounds and other sensations
that replicate a real environment (or create an
imaginary setting), and simulate a user's
physical presence in this environment

12. AR v/s VR
Augmented 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 .
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

13. Advantages of AR
Can increase knowledge and information
• People can share experiences with each other in real
time
over long distances
• Games that provide an even more "real" experience
• Things come to life on people’s mobile
• Form of escapism

14. Disadvantages of AR
 Spam and Security
 Social and Real-Time vs. Solitary and Cached
 UX (User Experience): Using AR can be inappropriate in
social situations.
 Interoperability: The lack of data portability between AR
environments (such as Wikitude AR and Layar AR
browser).
 Openness: Other people can develop their own layers of
content to display

15. CHALLANGES
 Technological limitations
 User interface limitation
 Social acceptance

16. THANK YOU!!!!!!