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One-handed Input for Mobile Devices via Motion Matching and Orbits Controls

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  • Augusto Esteves, University of Lisbon
  • ,
  • Elizabeth Bouquet, Ludwig Maximilian University of Munich
  • ,
  • Ken Pfeuffer
  • Florian Alt, Universität der Bundeswehr München

We introduce a novel one-handed input technique for mobile devices that is not based on pointing, but on motion matching-where users select a target by mimicking its unique animation. Our work is motivated by the findings of a survey (N=201) on current mobile use, from which we identify lingering opportunities for one-handed input techniques. We follow by expanding on current motion matching implementations-previously developed in the context of gaze or mid-Air input-so these take advantage of the affordances of touch-input devices. We validate the technique by characterizing user performance via a standard selection task (N=24) where we report success rates (>95%), selection times (∼1.6 s), input footprint, grip stability, usability, and subjective workload-in both phone and tablet conditions. Finally, we present a design space that illustrates six ways in which motion matching can be embedded into mobile interfaces via a camera prototype application.

TidsskriftProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies
Sider (fra-til)1-24
StatusUdgivet - jul. 2022

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