05-09-2014, 04:43 PM
AUGMENTED REALITY
AUGMENTED REALITY.ppt (Size: 49 KB / Downloads: 20)
INTRODUCTION
The process of superimposing digitally rendered images onto our real-world surroundings, giving a sense of an illusion or virtual reality. Recent developments have made this technology accessible using a Smartphone.
In 1997, Azuma published a survey that defined the field, described many problems, and summarized the developments up to that point.
Since then, AR’s growth and progress have been remarkable
How is it used? & How it works?
Augmented reality is hidden content, most commonly hidden behind marker images, that can be included in printed and film media, as long as the marker is displayed for a suitable length of time, in a steady position for an application to identify and analyze it. Depending on the content, the marker may have to remain visible.
Using a mobile application, a mobile phone's camera identifies and interprets a marker, often a black and white barcode image.
The software analyses the marker and creates a virtual image overlay on the mobile phone's screen, tied to the position of the camera.
This means the app works with the camera to interpret the angles and distance the mobile phone is away from the marker.
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
Implementation Framework
Hardware
To make the system to be as lightweight and comfortable as possible, off-the-shelf hardware can be used to avoid the expense
Software
Software infrastructure Coterie, a prototyping environment that provided language-level support for distributed virtual environments.
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
Technological limitations
User interface limitation
Social acceptance
CONCLUSION
Augmented reality is another step further into the digital age as we will soon see our environments change dynamically either through a Smartphone, glasses, car windshields and even windows in the near future to display enhanced content and media right in front of us.
This has amazing applications that can very well allow us to live our lives more productively, more safely, and more informatively.