1. TECHNICAL SEMINAR
on
Augmented Reality Technology
DEPARTMENT OF
ELECTRONICS AND COMMUNICATION ENGINEERING
Under the guidance of
Mr. S. Praveen Kumar
Assistant Professor,ECE
Presented by
N. Himasri
20JJ5A0412

2. CONTENTS

3. INTRODUCTION
 Augmented Reality (AR) is a new technology that involves the overlay of computer
graphics on the real world
 On the spectrum between virtual reality which creates immersible and computer
generated environment .Augmented reality is closer to the real world.
 An AR system adds virtual computer generated objects audio and others sense
enhancements to real world environment in real time. These enhancements are added in
a way that viewer cannot tell the difference between real and augmented world.
 Augmented reality add graphics ,sounds , haptics and smell to natural world it exists.
 This technology will have countless applications. Everyone from the tourists to the
military loops will benefit from ability to place computer generated graphics in the field
of vision.
 The ultimate goal of the AR is to create a system that user cannot tell the difference
between the real world and virtual augmentation of it.

4. What is Augmented reality?
 Augmented reality (AR) is a field of computer research
which deals with combination of real world and computer
generated data.
 Augmented reality refers to computer displays that add
virtual information to a users sensory perceptions.
 It is a method for visual improvement or enrichment of the
surrounding environment by overlaying spatially aligned
computer generated information on to human view (eyes).
 An AR research focuses on see-through devices usually
worn on the head that overlays graphics and text on the
users view of his or her surroundings .In general its
superimposes graphics over a real world environment in real
time.

5. Augmented Reality vs. Virtual Reality
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

6. Types of Augmented Reality
 This complex technology is divided into 3 main categories, each having their
objectives and applicational use cases.
 1. Marker less Augmented Reality : (location-based, position-based, or GPS) : The
position-based augmented reality uses a GPS, digital compass, velocity meter, or
accelerometer which is embedded in a certain device to provide data based on user’s
location.
 2. Projection-based Augmented Reality : This type of AR projects artificial light
onto a real-world surface. In some cases, it detects human interaction with a projection
by its alterations.
 3. Superimposition-based Augmented Reality :It can partially or fully replace the
original view of an object with an augmented reality object. The key point to this type
of application is the recognition of the object because without determining what the
object is, the original view cannot be replaced with an augmented reality one.

7. How Does it work ?
 The computer software recognizes the AR markers(black
squares) that contain certain patterns measures each side
and does some complex calculations to determine the
position and rotation of the market in 3D space .
 This information allows the computer to render photo
realistic 3D objects over the market and display the result in
both the handheld visor and on a large computer screen .
 The pattern within the marker dictates pitch 3D object will be
displayed and can also trigger narration and sound effects.
Markets can be variety of sizes and attached to almost any
flat service which means they can be used in many
interesting and effective ways.

8. Advantages of AR
 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
 AR will be used easy to use
 Improved Technology
 Educational Advantages of Augmented Reality
 Supports Business Activities
 Can increase knowledge and information

9. APPLICATIONS
Main classes of applications:
 Medical
 Entertainment
 Military training
 Engineering design
 Robotics and Tele robotics
 Manufacturing , Maintenance and repair
 Consumer design

10. Conclusion

11. THANK YOU