Augmented reality (AR)
is a live, direct or indirect, view of a physical, real-world environment whose
elements are augmented by computer-generated sensory input such as sound,
video, graphics or GPS data.
It is related to a more general concept called
mediated reality, in which a view of reality is modified (possibly even
diminished rather than augmented) by a computer. As a result, the technology
functions by enhancing one’s current perception of reality.
By contrast,
virtual reality replaces the real world with a simulated one. Augmentation is
conventionally in real-time and in semantic context with environmental
elements, such as sports scores on TV during a match.
With the help of advanced
AR technology (e.g. adding computer vision and object recognition) the
information about the surrounding real world of the user becomes interactive
and digitally manipulable.
Artificial information about the environment and its
objects can be overlaid on the real world.
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