Rodriguez, IB; Marquardt, N; (2017) Gesture elicitation study on how to opt-in & Opt-out from interactions with public displays. In: Dachselt, Raimund and Plasencia, Diego Martinez and Grossman, Tovi, (eds.) Proceedings of the 2017 ACM International Conference on Interactive Surfaces and Spaces. (pp. pp. 32-41). ACM: Brighton, United Kingdom.

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Abstract

Public interactive displays with gesture-recognizing cameras enable new forms of interactions. However, often such systems do not yet allow passers-by a choice to engage voluntarily or disengage from an interaction. To address this issue, this paper explores how people could use different kinds of gestures or voice commands to explicitly opt-in or opt-out of interactions with public installations. We report the results of a gesture elicitation study with 16 participants, generating gestures within five gesture-types for both a commercial and entertainment scenario. We present a categorization and themes of the 430 proposed gestures, and agreement scores showing higher consensus for torso gestures and for opting-out with face/head. Furthermore, patterns indicate that participants often chose non-verbal representations of opposing pairs such as ‘close and open’ when proposing gestures. Quantitative results showed overall preference for hand and arm gestures, and generally a higher acceptance for gestural interaction in the entertainment setting.

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