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w3c / wot-usecases

Repository of the WoT IG to discuss possible WoT use cases
https://w3c.github.io/wot-usecases/
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Variants of VR/AR guide use case #83

Open rjksmith opened 3 years ago

rjksmith commented 3 years ago

The VR/AR WoT use case can include a number of variants, especially in connection with location and discovery. The Virtual Guide use case in the WebVMT Editor’s Draft includes a historic site variant which has a number of subvariants.

  1. In its simplest form, a mobile app monitors the user’s location against an internal list of points of interest with associated audio guide track urls. If the user moves within a given radius of a location of interest, the app offers the option to play/stream the audio track with synchronised content, e.g. annotated map to highlight locations, AR to reconstruct places and events, etc. to augment the spoken narrative. This could also apply to a VR use case based on the avatar’s virtual location.

  2. A GeoPose variant is that the app triggers when the user is looking at the location of interest from a greater distance and ignores cases where the user is near but looking in another direction which improves the guide context.

  3. A WoT variant is that the app discovers ‘guide’ nodes near the user’s location from a WoT directory rather than from a predefined list to make the guide easier to maintain and more like a location-orientated Wikipedia. The nodes may need filtering to include ‘historic details’ and ignore ‘city maintenance’, ’transport infrastructure’, etc. which may be hosted by the same WoT guide service.

  4. An IoT variant includes live video from a viewpoint such as the Eiffel Tower or an indication of the admission waiting time - either as a live stream of the ticket queue or a calculation of the current estimated time - for the location of interest. The medical tool and virtual controller variants include live telemetry such as heart rate for the patient or flow rates in cables and pipes.

The user experience is similar in each subvariant, but the underlying technologies differ significantly and offer additional benefits.

mlagally commented 3 years ago

UC call on 12.1.: This received some comments in today's call, needs to be reviewed by experts. Please continue the discussion in this issue.