M

A. Andruska
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Abstract

A stroke is the basic limb movement that both humans and animals naturally and repetitiously perform. Having been introduced into gestural interaction, mid-air stroke gestures saw a wide application range and quite intuitive use. In this paper, we present an approach for building command-to-gesture mapping that exploits the semantic association between interactive commands and the directions of mid-air unistroke gestures. Directional unistroke gestures make use of the symmetry of the semantics of commands, which makes a more systematic gesture set for users’ cognition and reduces the number of gestures users need to learn. However, the learnability of the directional unistroke gestures is varying with different commands. Through a user elicitation study, a gesture set containing eight directional mid-air unistroke gestures was selected by subjective ratings of the direction in respect to its association degree with the corresponding command. We evaluated this gesture set in a following study to investigate the learnability issue, and the directional mid-air unistroke gestures and user-preferred freehand gestures were compared. Our findings can offer preliminary evidence that “return”, “save”, “turn-off” and “mute” are the interaction commands more applicable to using directional mid-air unistrokes, which may have implication for the design of mid-air gestures in human–computer interaction.
中风是人类和动物自然地、重复地进行的基本肢体运动。在手势交互中引入空中动作后,它的应用范围很广,使用起来也很直观。在本文中,我们提出了一种构建命令到手势映射的方法,该方法利用交互式命令和空中单笔手势方向之间的语义关联。定向单笔手势利用了命令语义的对称性,为用户的认知提供了更系统的手势集,减少了用户需要学习的手势数量。然而,方向单笔手势的易学性随指令的不同而不同。通过用户启发研究,通过主观评价方向与相应指令的关联度,选择了包含8个方向的空中单笔手势的手势集。我们在接下来的研究中评估了这个手势集,以研究易学性问题,并比较了定向空中单笔手势和用户偏好的徒手手势。我们的研究结果可以初步证明“返回”、“保存”、“关闭”和“静音”是更适用于定向空中单笔画的交互命令,这可能对人机交互中空中手势的设计有一定的启示。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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