ITPEC FE Morning October 2022 Question 24

Computer-generated information interwoven with the physical world — augmented reality adds digital content to the user's view of the real environment instead of replacing it.

AR shows the real surroundings, through a phone camera, smart glasses or a head-up display, and overlays information registered to them: navigation arrows drawn on the street, furniture previewed in a real room, labels on a machine. The digital layer moves with the real scene, so it is perceived as part of the environment.

Answer (c)

Why not others:

• •(a) — describes virtual reality: a head-mounted display replaces the real surroundings with a world that does not exist
• •(b) — also virtual reality: a 3D virtual space that follows the person's movement to create presence, with nothing of the real environment kept
• •(d) — watching recorded video is passive playback of the past; nothing is added to the viewer's present surroundings

Key rule: AR augments the real world the user is looking at; VR replaces it with a virtual one. Ask whether the user still sees their actual surroundings.

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