Extended reality
Combined real-and-virtual environment
From Wikipedia, the free encyclopedia
Extended reality (XR) is an umbrella term for various immersive technologies, including augmented reality (AR) and virtual reality (VR) as well as a means to interpolate between them and extend beyond them.[1][2][3] It is intended to combine or mirror the physical world, using a "digital twin" able to interact with it,[4][5] and give users an immersive experience by being in a virtual, augmented, intelligent or digital environment.

The first usage of the term "extended reality" was in reference to the use of technology to extrapolate (extend) beyond typical human perception, e.g. allowing us to see sound waves, radio waves, and otherwise invisible phenomena.[6]
XR is rapidly growing beyond research and is now being applied in medicine,[7][8] architecture,[9] education,[10] industry,[11] entertainment, cinema, marketing, real estate, manufacturing,[12] education, maintenance,[13] and remote work.[14] Extended reality can be used for joint effort in the workplace, training, educational purposes, therapeutic treatments, and data exploration and analysis.
Extended reality works by using visual data acquisition that is either accessed locally or shared and transferred over a network and to the human senses. By enabling real-time responses in a virtual stimulus, XR devices are able to create customized experiences.
XR can be applied not only to humans as a subject, but also to technology as a subject, where the user or the technology can have its sensory capacity extended by placing it in a closed feedback loop. The term "veillametrics" refers to the measurement of a subject's ability to sense, for example, its ability to observe.[15][16][17]
In 2018 the BBC launched a research project to capture and document the barriers present in extended reality environments.[18]
The International Institute of MetaNumismatics (INIMEN) studies the applications of extended reality technologies in numismatic research, with a dedicated department.[19]
See also
- Computer-mediated reality – Ability to manipulate one's perception of reality through the use of a computer
- Head-mounted display – Type of display device
- Immersion (virtual reality) – Perception of being physically present in a non-physical world
- Metaverse – Collective three-dimensional virtual shared space
- OpenXR – Standard for access to virtual reality and augmented reality platforms and devices
- Reality–virtuality continuum – Mixed reality and virtual relatity
- Smartglasses – Wearable computer glasses
- Spatial computing – Computing paradigm emphasizing 3D spatial interaction with technology
- Wearable computer – Small computing device worn on the body
- WebXR – Experimental JavaScript API for augmented/virtual reality devices