標題: One-Handed Input Through Rotational Motion for Smartwatches
作者: Tsai, Hsin-Ruey
Chen, Po-Chang
Chan, Liwei
Hung, Yi-Ping
資訊工程學系
Department of Computer Science
公開日期: 1-Jan-2018
摘要: One-handed input for smartwatches is crucial when users' hands are occupied. A rotational motion is leveraged, which can be detected by built-in motion sensors in most smartwatches, as input to provide item selection. Users control a cursor by rotating the smartwatch into different orientations using the proposed item selection gestures. To understand human wrist dexterity and the ability to perform rotational motion input along each degree of freedom on smartwatches, a human-factor study was performed. Except dexterity, users' consensus and agreement of user-defined rotational motion input gestures for selection and commitment on smartwatches in an exploratory user study were also observed. Based on both the studies, gestures roll and tilt are proposed as selection gestures, and shake and nod are used as commitment gestures. The item selection performance using the proposed gestures in 2D layouts in a user study was further evaluated. The study results showed that tilt-nod and tilt-shake are suitable for item numbers (4x3) and (5x5), respectively. Furthermore, due to high error rate for tilt-shake in (2x2) caused by false positive in shake detection, roll-shake with better social acceptance can be used as an alternative for smartwatches without a built-in front camera in (2x2).
URI: http://dx.doi.org/10.1080/10447318.2017.1331534
http://hdl.handle.net/11536/148051
ISSN: 1044-7318
DOI: 10.1080/10447318.2017.1331534
期刊: INTERNATIONAL JOURNAL OF HUMAN-COMPUTER INTERACTION
Volume: 34
起始頁: 971
結束頁: 986
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