Augmented Reality

Not to be confused with Virtual reality.

Definition

Augmented reality (AR) is an interactive experience of a real-world environment where the objects that reside in the real world are enhanced by computer-generated perceptual information, sometimes across multiple sensory modalities, including visual, auditory, haptic, somatosensory and olfactory. The overlaid sensory information can be constructive (i.e. additive to the natural environment), or destructive (i.e. masking of the natural environment).

The overlaid sensory information can be constructive (i.e. additive to the natural environment), or destructive (i.e. masking of the natural environment).


Technological aspects

AR can be defined as a system that fulfills three basic features:

  • a combination of real and virtual worlds,
  • real-time interaction,
  • and accurate 3D registration of virtual and real objects.

Distinction between virtual and augmented reality

While augmented reality and virtual reality share some things in common, they are two different technologies. AR augments reality, but doesn't replace it. VR completely replaces your surroundings with a virtual environment. Therefore, any hardware that combines digital content with your actual surroundings is an AR device. Hardware that operates independently from your location and encompasses your vision is a VR device.


Highlights

  • Viewing AR as a concept rather than a technology is more productive.
  • The instructional approaches adopted by an AR system are discussed.
  • While AR offers new learning opportunities, it also creates new challenges.

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Sources

  • https://en.wikipedia.org/wiki/Augmented_reality
  • https://techterms.com/definition/augmented_reality
  • https://www.sciencedirect.com/science/article/abs/pii/S0360131512002527?via%3Dihub

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