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WallTokens: Surface Tangibles for Vertical Displays

Emmanuel Courtoux 1 Caroline Appert 1 Olivier Chapuis 1 
1 ILDA - Interacting with Large Data
Inria Saclay - Ile de France, LISN - Laboratoire Interdisciplinaire des Sciences du Numérique, IaH - Interaction avec l'Humain
Abstract : Tangibles can enrich interaction with digital surfaces. Among others, they support eyes-free control or increase awareness of other users' actions. Tangibles have been studied in combination with horizontal surfaces such as tabletops, but not with vertical screens such as wall displays. The obvious obstacle is gravity: tangibles cannot be placed on such surfaces without falling. We present WallTokens, easy-to-fabricate tangibles to interact with a vertical surface. A WallToken is a passive token whose footprint is recognized on a tactile surface. It is equipped with a push-handle that controls a suction cup. This makes it easy for users to switch between sliding the token or attaching it to the wall. We describe how to build such tokens and how to recognize them on a tactile surface. We report on a study showing the benefits of WallTokens for manipulating virtual objects over multi-touch gestures. This project is a step towards enabling tangible interaction in a wall display context.
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Submitted on : Tuesday, January 26, 2021 - 5:56:04 PM
Last modification on : Friday, August 5, 2022 - 9:27:34 AM
Long-term archiving on: : Tuesday, April 27, 2021 - 7:31:12 PM



Emmanuel Courtoux, Caroline Appert, Olivier Chapuis. WallTokens: Surface Tangibles for Vertical Displays. CHI 2021 - International conference on Human factors in computing systems, May 2021, Yokoama / Virtual, Japan. 13 p., ⟨10.1145/3411764.3445404⟩. ⟨hal-03122016⟩



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