ThumbStroke: A Virtual Keyboard in Support of Sight-Free and One-Handed Text Entry on Touchscreen Mobile Devices
ThumbStroke: A Virtual Keyboard in Support of Sight-Free and One-Handed Text Entry on Touchscreen Mobile Devices
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ThumbStroke：一种虚拟键盘，支持触摸屏移动设备上的裸眼单手文本输入
DOI：
10.1145/3343858
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发表时间：
2019
影响因子：
2.5
通讯作者：
Zhou, Lina
中科院分区：
文献类型：
--
作者：
Lai, Jianwei;Zhang, Dongsong;Wang, Sen;Kilic, Isil Doga;Zhou, Lina
移动的设备上的QWERTY键盘通常需要用户的全部视觉注意力和双手，这并不总是可能的。我们提出了一个基于拇指笔划的键盘，ThumbStroke，以支持视力自由和单手文本输入。通过ThumbStroke输入文本完全依赖于移动终端屏幕上任何地方的拇指敲击方向。它不需要在任何特定的按键上进行物理按压，从而消除了对视觉注意力的需求，并减少了由于按键尺寸小，拇指肥胖，拇指可达性有限和视觉遮挡而导致的错误。我们通过20次纵向对照实验室实验对ThumbStroke进行了经验性评估。与Escape和QWERTY键盘相比，ThumbStroke在打字准确性和用户感知方面具有优势，并且在无视觉和单手文本输入方面比QWERTY键盘具有更快的打字速度。本研究为移动的人机交互提供了新的研究贡献，推动了软键盘与移动的设备和移动的可访问性的单手交互的设计。
The QWERTY keyboard on mobile devices usually requires users’ full visual attention and both hands, which is not always possible. We propose a thumb-stroke-based keyboard, ThumbStroke, to support both sight-free and one-handed text entry. Text entry via ThumbStroke completely relies on the directions of thumb strokes at any place on the screen of a mobile device. It does not require physical press on any specific keys, thus eliminating the need for visual attention and reducing errors due to tiny key size, fat thumbs, limited thumb reachability, and visual occlusion. We empirically evaluated ThumbStroke through a 20-session longitudinal controlled lab experiment. ThumbStroke shows advantages in typing accuracy and user perceptions in comparison to the Escape and QWERTY keyboards and results in faster typing speed than QWERTY in sight-free and one-handed text entry. This study provides novel research contributions to mobile HCI, advancing the design of soft keyboards for one-handed interaction with mobile devices and mobile accessibility.