Simulating an extendable tangible slider for eyes-free one-handed interaction on mobile devices

Simulating an extendable tangible slider for eyes-free one-handed interaction on mobile devices
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模拟可扩展的有形滑块,以便在移动设备上进行免眼单手交互

DOI:
10.1145/3206505.3206510
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发表时间:
2018
期刊:
--
影响因子:
--
通讯作者:
Rosso J
Rosso J
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--
文献类型:
--
作者:
Rosso J

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滑动条在移动设备上广泛使用。设想一下,移动设备可以动态变形,从屏幕表面增加有形的控制,有形的滑块提供了不需要眼睛交互的好处。然而,用一只手去触摸远处的值是有问题的:用户需要换手,这是不舒服的。为了克服这一问题,本文着手实验研究一种可伸缩的可触控滑块,以支持单手抓握。有形的滑块的旋钮延伸,以保持拇指的运动在其舒适的区域。我们首先制作了一个低保真度的原型,由一个足够长的旋钮制成,可以让人抓握。与标准的有形滑块相比,这种低保真原型在达到远距离目标时显着提高了性能。然后,我们建立了一个更高保真度的原型,引入了驱动装置,并允许更短的旋钮。当用于抓紧时,旋钮向用户拇指方向移动。实验结果表明,在操作过程中,旋钮的运动不会中断无眼交互。相比之下,由于需要视觉关注,图形可扩展滑块的执行速度要慢0.9秒。然而,结果表明,驱动旋钮的运动影响性能,因为高保真度原型比低保真度原型慢0.6s。
Sliders are widely used on mobile devices. Envisioning mobile devices that can dynamically deform to raise tangible controls from the screen surface, tangible sliders offer the benefit of eyes-free interaction. However, reaching for distant values with one hand is problematic: users namely need to change their handgrip, which is not comfortable. To overcome this problem, this paper sets out to experimentally study an extendable tangible slider to support one-handed clutching. The tangible slider's knob extends to maintain the thumb's movement within its comfortable area. We first built a low-fidelity prototype made of a knob long enough to allow clutching. This low-fidelity prototype significantly improves performance when reaching distant targets, as compared to a standard tangible slider. We then built a higher-fidelity prototype, introducing actuation and allowing for a shorter knob. When used for clutching, the knob moves back towards the users' thumb. Experimental results show that the motion of the actuated knob does not interrupt eyes-free interaction during manipulation. In comparison, a graphical extendable slider performed 0.9s slower due to the required visual attention. However, the results suggest that the motion of the actuated knob affects performance, as the higher-fidelity prototype performed 0.6s slower than the low-fidelity prototype.
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