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Augmented Reality


Augmented reality is the integration of digital information with the user’s environment in real time. Unlike virtual reality, which creates a totally artificial environment, augmented reality uses the existing environment and overlays new information on top of it.
Boeing researcher Thomas Caudell coined the term augmented reality in 1990, to describe how the head-mounted displays those electricians used when assembling complicated wiring harnesses worked. One of the first commercial applications of AR technology was the yellow “first down” line that began appearing in televised football games sometime in 1998. Today, Google glass and heads-up displays in car windshields are perhaps the most well-known consumer AR products, but the technology is used in many industries including healthcare, public safety, gas and oil, tourism and marketing.
Augmented reality apps are written in special 3D programs that allow the developer to tie animation or contextual digital information in the computer program to an augmented reality “marker” in the real world. When a computing device’s AR app or browser plug-in receives digital information from a known marker, it begins to execute the marker’s code and layer the correct image or images.
AR applications for smart phones typically include global positioning system (GPS) to pinpoint the user’s location and its compass to detect device orientation. Sophisticated AR programs used by the military for training may include machine vision, object recognition and gesture recognition technologies.
Augmented reality is changing the way we view the world — or at least the way its users see 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. Similar devices and applications already exist, particularly on smart phones like the iPhone.
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Author: Nidhi Gupta