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Augmented Reality

Posted on 29. Sep, 2009 by Robert in Internet

Augmented Reality is a really great invention. The beginning of Augmented reality I would say started with Virtual Reality, where the 3D world became sureal and surrounds the person and making the game/program feel real.
Now there is Augmented Reality:

Definition of Augmented Reality

There are two commonly accepted definitions of Augmented Reality today. One was given by Ronald Azuma in 1997 [2]. Azuma’s definition says that Augmented Reality

* combines real and virtual
* is interactive in real time
* is registered in 3D

Additionally Paul Milgram and Fumio Kishino defined Milgram’s Reality-Virtuality Continuum in 1994 [3]. They describe a continuum that spans from the real environment to a pure virtual environment. In between there are Augmented Reality (closer to the real environment) and Augmented Virtuality (is closer to the virtual environment).
Milgram’s Continuum

More recently, the term Augmented Reality has been blurred a bit due to the increased interest of the general public in AR.
[edit] Examples

Commonly known examples of AR are the yellow “first down” line seen in television broadcasts of American football games, and the colored trail showing location and direction of the puck in TV broadcasts of hockey games. The real-world elements are the football field and players, and the virtual element is the yellow line, which is drawn over the image by computers in real time. Similarly, rugby fields and cricket pitches are branded by their sponsors using Augmented Reality; giant logos are inserted onto the fields when viewed on television.

Another type of AR application uses projectors and screens to insert objects into the real environment, enhancing museum exhibitions for example. The difference to a simple TV screen for example, is that these objects are related to the environment of the screen or display, and that they often are interactive as well.

Many first-person shooter video games simulate the viewpoint of someone using AR systems. In these games the AR can be used to give visual directions to a location, mark the direction and distance of another person who is not in line of sight, give information about equipment such as remaining bullets in a gun, and display a myriad of other images based on whatever the game designers intend. This is also called the head-up display.

In some current applications like in cars or airplanes, this is usually a head-up display integrated into the windshield.

The F-35 Lightning II has no Head-up display because all targets are tracked by the aircraft’s situational awareness and the sensor fusion is presented in the pilot’s helmet mounted display system that provides an augmented reality system that allows the pilot to look through his own aircraft as if it wasn’t there.

Here is a video about Augmented Reality:

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Tags: Augmented Reality, Internet, video