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Reality Reinvented 
Name :Barkha Manral 
Enroll Roll no. 
110210116062 
Semester :5th 
Department : 
Information Technology
 Introduction 
 Augmented reality 
 Augmented reality system 
 Augmenting our world 
 Example – Wikitude 
 Implementation 
 Components of AR system 
 Head mounted display 
 Video see through 
 Optical see through 
 Tracking & orientation 
 Global positioning system 
 Differential GPS 
 Digital compass 
 Mobile computing 
 Augmented Reality Vs Virtual reality 
 History 
 Using Augmented reality 
 Limitations 
 Looking into future.. 
 Conclusion 
 references
 Augmented reality will truly change the way we view the 
world. Picture yourself walking or driving down the street. 
With augmented-reality displays, which will eventually look 
much like a normal pair of glasses, informative graphics will 
appear in your field of view, and audio will coincide with 
whatever you see. These enhancements will be refreshed 
continually to reflect the movements of your head. In this 
article, we will take a look at this future technology, its 
components and how it will be used.
 Augmented Reality is a field of 
computer research which deals 
with combination of reality with 
computer generated data. 
 It is still in an early stage of 
research and development. 
possibly by the end of this decade, 
we will see the first mass-marketed 
augmented-reality 
system
An augmented reality system is one that 
Combine real n virtual world 
Is interactive in real time 
Is registered in 3D.
 The basic idea of augmented reality is to 
superimpose graphics, audio and other 
sense enhancements over a real-world 
environment in real-time. 
 Sounds pretty simple. Besides, haven't 
television networks been doing that with 
graphics for decades? 
 These systems display graphics for only one 
point of view. Next-generation augmented-reality 
systems will display graphics for 
each viewer's perspective.
Wikitude – 
Wiki attitude
WIKITUDE World 
Browser presents the user 
with data about their 
surroundings, nearby 
landmarks, and other 
points of interest by 
overlaying information 
on the real-time camera 
view of a smart-phone.
 Mobile travel guide for the 
Android platform (open 
source OS for cell phones). 
 Plan a trip or find about 
current surroundings in real-time.
 To implement there are four things that we 
require to do find user’s location find user’s 
orientation (view)generating information 
augmenting it to user’s view 
Find user’s location 
Find user’s orientation (view) 
Generate data 
Augment generated 
data to user’s view
Here are the three components needed to make an 
augmented-reality system work : 
display 
tracking system 
mobile computing power
Head 
mounted view
 Just as monitors allow us to see text 
and graphics generated by 
computers, head-mounted displays 
(HMDs) will enable us to view 
graphics and text created by 
augmented-reality systems 
 There are two basic types of HMDS: 
 video see-through 
 optical see-through
 They block out the wearer's surrounding environment, using small 
video cameras attached to the outside of the goggles to capture images. 
On the inside of the display, the video image is played in real-time and 
the graphics are superimposed on the video. One problem with the use 
of video cameras is that there is more lag, meaning that there is a delay 
in image-adjustment when the viewer moves his or her head.
 Optical see through is not fully realized yet .It is 
supposed to consist of ordinary looking pair of glasses 
that will have light source on the side to project images 
onto the retina.
Tracking & 
Orientation
The biggest challenge facing developers 
of augmented reality is the need to know 
where the user is located in reference to 
his or her surroundings. 
There's also the additional problem of 
tracking the movement of users' eyes 
and heads.
1.Where the user is located? 
2.Where he/she is 
looking?
 Currently, the best tracking 
technology available for large open 
areas is the Global Positioning 
System. 
 However, GPS receivers have an 
accuracy of about 10 to 30 meters, 
which is not bad in the grand 
scheme of things, but isn't good 
enough for augmented reality, which 
needs accuracy measured in 
millimeters or smaller. 
GPS Network
 There are ways to increase 
tracking accuracy. For instance, 
the military uses multiple GPS 
signals. There is also differential 
GPS, which involves using an 
area that has already been 
surveyed. A more accurate 
system being developed, known 
as real-time kinematic GPS, can 
achieve centimeter-level 
accuracy.
 A digital compass consists of 
sensors to measure the earth's 
magnetic field, some 
conditioning of those sensor 
signals, and a microcontroller to 
interpret the data 
Components 
 Three magnetic sensors 
 One tilt sensor
Wearable computers 
Mobile computing can be accomplished with help 
of wearable computers 
 A wearable computer is a battery powered 
computer system worn on the user’s body(belt, 
backpack etc). 
 It is designed for mobile & predominantly hand 
free operations often incorporating head 
mounted display & speech input.
 Virtual reality creates immersive, 
computer generated environments 
which replaces real world. 
 Here the head mounted displays 
block out all the external world 
from the viewer and present a 
view that is under the complete 
control of the computer. 
 Virtual reality serves for at totally 
immersive environment . The 
senses are under control of the 
system. 
 The user is completely immersed 
is an artificial world and cut off 
from real world. 
 Augmented reality is closer to the 
real world. augmented reality add 
graphics, sounds & smell to the 
natural world, as it exists. 
 Thus it augments the real world 
scene in such a way that the user 
can maintain a sense of presence 
in that world. 
 That is ,the user can interact with 
the real world, and at the same 
time can see, both the real and 
virtual world co-existing. 
 User is not cut off from the reality
 One of the identifying marks of a virtual reality 
system is the head mounted display worn by 
users. 
 These displays block out all the external world 
and present to the wearer a view that is under 
the complete control of the computer. 
 In Augmented Reality, the user must still be 
aware that he or she is present in the “real 
world.”
Once researchers overcome the challenges that face them, 
augmented reality will likely pervade every corner of our lives. It has 
the potential to be used in almost every industry, including: 
 Education 
In an Augmented Reality interface 
students can be seated around a table 
and see each other at the same time as a 
virtual heart floating in their midst. This 
results in conversational behavior that is 
more similar to natural face-to-face 
collaboration than to screen based 
collaboration [Kiyokawa 2002].
Military - The military has been devising uses for 
augmented reality for decades. The idea here is that 
an augmented-reality system could provide troops 
with vital information about their surroundings, 
such as showing where entrances are on the 
opposite end of a building , somewhat like X-ray 
vision. 
Augmented reality displays 
could also highlight troop 
movements , and give soldiers 
the ability to move to where 
the enemy can't see them.
Instant information -Tourists and 
students could use these systems to learn 
more about a certain historical event. 
Imagine walking onto a Civil War 
battlefield and seeing a re-creation of 
historical events on a head-mounted, 
augmented-reality display. It would 
immerse you in the event, and the view 
would be panoramic.
 Gaming - How cool would it be to take video 
games outside? The game could be projected 
onto the real world around you, and you 
could, literally, be in it as one of the 
characters. One Australian researcher has 
created a prototype game that combines 
Quake, a popular video game, with 
augmented reality. He put a model of a 
university campus into the game's software. 
Now, when he uses this system, the game 
surrounds him as he walks across campus.
Accurate tracking and orientation 
For wearable augmented reality system, 
there are still enough computing power 
to create stereo 3D graphics 
The size of AR systems is yet another 
problem.
Expanding a PC screen to real 
environment..program windows & icons 
appear as virtual devices in real space & 
are eye or gesture operated, by gazing or 
pointing. 
Enhanced media application ,like 
pseudo holographic virtual screens, 
virtual surround cinema.
 Replacement of cell phones: eye dialing, 
insertion of information directly into 
environment. 
 Virtual conferences in "holodeck" style . 
 Examples might be a virtual wall clock, a to-do 
list for the day docked by your bed for 
you to look at first thing in the morning, etc.
 Enhanced media applications, like pseudo 
holographic virtual screens, virtual surround 
cinema, virtual 'holodecks' (allowing 
computer-generated imagery to interact with 
live entertainers and audience) 
 And the list goes on as your imagination….
Augmented reality will further blur the line 
between what's real and what's computer-generated 
by enhancing what we see, hear, 
feel and smell.
http://www.metalliccloud.com/rob/futur 
e_thinking/ 
http://en.wikipedia.org/wiki/Augmented 
_reality 
http://www.howstuffworks.com/augmen 
ted-reality.htm 
http://www.youtube.com/watch?v=tpaJB 
u4BEuA
virtual reality Barkha manral seminar on augmented reality.ppt

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virtual reality Barkha manral seminar on augmented reality.ppt

  • 1. Reality Reinvented Name :Barkha Manral Enroll Roll no. 110210116062 Semester :5th Department : Information Technology
  • 2.  Introduction  Augmented reality  Augmented reality system  Augmenting our world  Example – Wikitude  Implementation  Components of AR system  Head mounted display  Video see through  Optical see through  Tracking & orientation  Global positioning system  Differential GPS  Digital compass  Mobile computing  Augmented Reality Vs Virtual reality  History  Using Augmented reality  Limitations  Looking into future..  Conclusion  references
  • 3.  Augmented reality will truly change the way we view the world. Picture yourself walking or driving down the street. With augmented-reality displays, which will eventually look much like a normal pair of glasses, informative graphics will appear in your field of view, and audio will coincide with whatever you see. These enhancements will be refreshed continually to reflect the movements of your head. In this article, we will take a look at this future technology, its components and how it will be used.
  • 4.  Augmented Reality is a field of computer research which deals with combination of reality with computer generated data.  It is still in an early stage of research and development. possibly by the end of this decade, we will see the first mass-marketed augmented-reality system
  • 5. An augmented reality system is one that Combine real n virtual world Is interactive in real time Is registered in 3D.
  • 6.  The basic idea of augmented reality is to superimpose graphics, audio and other sense enhancements over a real-world environment in real-time.  Sounds pretty simple. Besides, haven't television networks been doing that with graphics for decades?  These systems display graphics for only one point of view. Next-generation augmented-reality systems will display graphics for each viewer's perspective.
  • 7. Wikitude – Wiki attitude
  • 8. WIKITUDE World Browser presents the user with data about their surroundings, nearby landmarks, and other points of interest by overlaying information on the real-time camera view of a smart-phone.
  • 9.  Mobile travel guide for the Android platform (open source OS for cell phones).  Plan a trip or find about current surroundings in real-time.
  • 10.  To implement there are four things that we require to do find user’s location find user’s orientation (view)generating information augmenting it to user’s view Find user’s location Find user’s orientation (view) Generate data Augment generated data to user’s view
  • 11. Here are the three components needed to make an augmented-reality system work : display tracking system mobile computing power
  • 13.  Just as monitors allow us to see text and graphics generated by computers, head-mounted displays (HMDs) will enable us to view graphics and text created by augmented-reality systems  There are two basic types of HMDS:  video see-through  optical see-through
  • 14.  They block out the wearer's surrounding environment, using small video cameras attached to the outside of the goggles to capture images. On the inside of the display, the video image is played in real-time and the graphics are superimposed on the video. One problem with the use of video cameras is that there is more lag, meaning that there is a delay in image-adjustment when the viewer moves his or her head.
  • 15.  Optical see through is not fully realized yet .It is supposed to consist of ordinary looking pair of glasses that will have light source on the side to project images onto the retina.
  • 17. The biggest challenge facing developers of augmented reality is the need to know where the user is located in reference to his or her surroundings. There's also the additional problem of tracking the movement of users' eyes and heads.
  • 18. 1.Where the user is located? 2.Where he/she is looking?
  • 19.  Currently, the best tracking technology available for large open areas is the Global Positioning System.  However, GPS receivers have an accuracy of about 10 to 30 meters, which is not bad in the grand scheme of things, but isn't good enough for augmented reality, which needs accuracy measured in millimeters or smaller. GPS Network
  • 20.  There are ways to increase tracking accuracy. For instance, the military uses multiple GPS signals. There is also differential GPS, which involves using an area that has already been surveyed. A more accurate system being developed, known as real-time kinematic GPS, can achieve centimeter-level accuracy.
  • 21.  A digital compass consists of sensors to measure the earth's magnetic field, some conditioning of those sensor signals, and a microcontroller to interpret the data Components  Three magnetic sensors  One tilt sensor
  • 22. Wearable computers Mobile computing can be accomplished with help of wearable computers  A wearable computer is a battery powered computer system worn on the user’s body(belt, backpack etc).  It is designed for mobile & predominantly hand free operations often incorporating head mounted display & speech input.
  • 23.  Virtual reality creates immersive, computer generated environments which replaces real world.  Here the head mounted displays block out all the external world from the viewer and present a view that is under the complete control of the computer.  Virtual reality serves for at totally immersive environment . The senses are under control of the system.  The user is completely immersed is an artificial world and cut off from real world.  Augmented reality is closer to the real world. augmented reality add graphics, sounds & smell to the natural world, as it exists.  Thus it augments the real world scene in such a way that the user can maintain a sense of presence in that world.  That is ,the user can interact with the real world, and at the same time can see, both the real and virtual world co-existing.  User is not cut off from the reality
  • 24.  One of the identifying marks of a virtual reality system is the head mounted display worn by users.  These displays block out all the external world and present to the wearer a view that is under the complete control of the computer.  In Augmented Reality, the user must still be aware that he or she is present in the “real world.”
  • 25. Once researchers overcome the challenges that face them, augmented reality will likely pervade every corner of our lives. It has the potential to be used in almost every industry, including:  Education In an Augmented Reality interface students can be seated around a table and see each other at the same time as a virtual heart floating in their midst. This results in conversational behavior that is more similar to natural face-to-face collaboration than to screen based collaboration [Kiyokawa 2002].
  • 26. Military - The military has been devising uses for augmented reality for decades. The idea here is that an augmented-reality system could provide troops with vital information about their surroundings, such as showing where entrances are on the opposite end of a building , somewhat like X-ray vision. Augmented reality displays could also highlight troop movements , and give soldiers the ability to move to where the enemy can't see them.
  • 27. Instant information -Tourists and students could use these systems to learn more about a certain historical event. Imagine walking onto a Civil War battlefield and seeing a re-creation of historical events on a head-mounted, augmented-reality display. It would immerse you in the event, and the view would be panoramic.
  • 28.  Gaming - How cool would it be to take video games outside? The game could be projected onto the real world around you, and you could, literally, be in it as one of the characters. One Australian researcher has created a prototype game that combines Quake, a popular video game, with augmented reality. He put a model of a university campus into the game's software. Now, when he uses this system, the game surrounds him as he walks across campus.
  • 29. Accurate tracking and orientation For wearable augmented reality system, there are still enough computing power to create stereo 3D graphics The size of AR systems is yet another problem.
  • 30. Expanding a PC screen to real environment..program windows & icons appear as virtual devices in real space & are eye or gesture operated, by gazing or pointing. Enhanced media application ,like pseudo holographic virtual screens, virtual surround cinema.
  • 31.  Replacement of cell phones: eye dialing, insertion of information directly into environment.  Virtual conferences in "holodeck" style .  Examples might be a virtual wall clock, a to-do list for the day docked by your bed for you to look at first thing in the morning, etc.
  • 32.  Enhanced media applications, like pseudo holographic virtual screens, virtual surround cinema, virtual 'holodecks' (allowing computer-generated imagery to interact with live entertainers and audience)  And the list goes on as your imagination….
  • 33. Augmented reality will further blur the line between what's real and what's computer-generated by enhancing what we see, hear, feel and smell.
  • 34. http://www.metalliccloud.com/rob/futur e_thinking/ http://en.wikipedia.org/wiki/Augmented _reality http://www.howstuffworks.com/augmen ted-reality.htm http://www.youtube.com/watch?v=tpaJB u4BEuA