augmented reality chris baker

8/13/2019 Augmented Reality Chris Baker

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Augmented Reality

FIDA MOHAMMAD

ABHISHEK AUGUSTYA


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What is Augmented Reality?

Augmented reality(AR) is a field ofcomputer research which deals with thecombination of real-world and computer-generated data.

Most of the AR research is currentlyconcerned with the use of video imagery

which is digitally processed andaugmented by adding computer-generatedgraphics.


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What is AR? (cont.)

Ronald Azuma defines an augmentedreality system as one that:

Combines real and virtual world aspects

Is interactive in real-time

Is registered in three dimensions


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Augmented vs. Virtual Reality

One of the identifying marks of a virtual realitysystem is the head mounted display worn byusers.

These displays block out all the external worldand present to the wearer a view that is underthe complete control of the computer.

In Augmented Reality, the user must still beaware that he or she is present in the realworld.


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How does AR Work?

The basic idea of augmented reality is tosuperimpose graphics, audio and other senseenhancements over a real-world environment inreal-time.

The graphics will then change to accommodatethe users eye or head movements.

Simulated augmented reality medical image


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What is needed?

There are three components needed in order tomake an augmented-reality system work:

Head-mounted display

Tracking system

Mobile computing power


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Current Uses of AR

Yellow first down lineused on TV broadcastsof football games:

Real world elements:

football field andplayers

Virtual element: theyellow line drawn

over the image bycomputers in real-time


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Current Uses of AR

HUD (Head UpDisplay):

Used in commercialaircraft, automobiles,

and otherapplications

Presents data withoutrequiring the user to

look away from his orher usual viewpoint


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LifeClipper

LifeClipper is awearable AR systembeing used inSwitzerland.

When walking arounda chosen culturallyinteresting area, theuser will feel asthough they arewatching a film.


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SOME TOP AR APPS

Satellite AR: An app for Android thatenables users to know what satellitesare flying over their head. Even if you

are not an astronaut, this augmentedreality app will show you icons of thesatellites that are in view. And if youwant to know more about a particularsatellite, just tap on the icon.


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SATELLITE AR VIEW


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Wikitude World Browser: This is asmartphone AR encyclopaediadesigned for Android, iOS, Blackberry,Bada, and Windows Phone. WikitudeWorld Browser uses your smartphonecamera for browsing your surroundings

and provides information on places,landmarks and restaurants. This ARapplication helps you to find your

favourite restaurants, hotels, andATMs. It was named as the bestaugmented reality browser for 2009,

2010 and 2011


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Wikitude browser view


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Future of AR

Gaming:

ARQuake is an AR versionof the popular gameQuake.

1stperson shooter that

allows the user to runaround in the realworld while playing agame in the computergenerated world.

Uses GPS, a hybridmagnetic and interial

orientation sensor, guncontroller, and astandard laptop carriedin a backpack.


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Future of AR

Military: The Office of Naval Research has sponsored AR research

AR system could provide troops with vital informationabout their surroundings.

Medical: Superimpose an image from an MRI onto a patients

body.

This might allow surgeons to pinpoint a tumor toremove.

Education: Used in labs where students can learn more about the

experiments they are participating in.


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WHAT ARE WE GOING TO DO


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LOCATION BASED

AUGMENTED ANDROID APP This app will help users to discover

interesting places within their current

location By pointing the devices camera towards

a particular position ,all useful places

like restaurants, coffee shops, colleges,offices etc will be displayed on thescreen along with the direction

it will also load the data about the pointof interest from its server.

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Software requirements

1:Java development kit

2:android adt bundle

3:eclipse


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Sensors required

GPS : it allows app to pin point thelocation of the device

Acceleration sensor :to find out howmuch you moved and in which direction.This prediction allows app to update theview before the gps data is received


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Compass :To tell the direction you arelooking in

Orientation sensor: it tells theapplication how much the device istilted. This helps predict the angle ofview from the ground i:e angle ofhorizon relative to the device camera


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Implementation Depending on the location received by

the Gps system ,the app requests itsserver to send a list of point of interestnearby along with the coordinates

It then reads the direction you arelooking in from the compass

Combining these two pieces of

information ,it loads the data about thepoint of interest that it received fromthe server and overlays it on the

camera view.


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THANKYOU

augmented reality chris baker

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