FaceTouch: Enabling Touch Interaction in Display Fixed UIs for Mobile Virtual Reality
FaceTouch: Enabling Touch Interaction in Display Fixed UIs for Mobile Virtual Reality
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DOI：
10.1145/2984511.2984576
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发表时间：
2016-10
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通讯作者：
Jan Gugenheimer;D. Dobbelstein;Christian Winkler;Gabriel Haas;E. Rukzio
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作者：
Jan Gugenheimer;D. Dobbelstein;Christian Winkler;Gabriel Haas;E. Rukzio
我们提出了FaceTouch，这是一种用于移动虚拟现实(VR)头盔显示器(HMD)的新颖交互概念，它利用背面作为触敏表面。有了FaceTouch，用户可以通过触摸头盔显示器背面的相应位置，利用他们的本体感觉，指向并选择他们视野内的虚拟内容。这允许在移动和游牧场景中进行丰富的交互(例如手势)，而不必携带额外的配件(例如游戏手柄)。我们构建了一个FaceTouch的原型，并进行了两项用户研究。在第一项研究中，我们使用三种不同的选择技术测量了FaceTouch在显示器固定目标选择任务中的精确度，显示出2%的低错误率，表明了日常使用的可行性。为了评估不同安装位置对用户性能的影响，我们进行了第二项研究。我们比较了触摸板的三种安装位置(面、手和侧)，结果表明，将触摸板安装在头盔显示器的背面可以显著降低错误率、缩短选择时间和提高可用性。最后，我们介绍了交互技术和探索FaceTouch设计空间的三个示例应用程序。
We present FaceTouch, a novel interaction concept for mobile Virtual Reality (VR) head-mounted displays (HMDs) that leverages the backside as a touch-sensitive surface. With FaceTouch, the user can point at and select virtual content inside their field-of-view by touching the corresponding location at the backside of the HMD utilizing their sense of proprioception. This allows for rich interaction (e.g. gestures) in mobile and nomadic scenarios without having to carry additional accessories (e.g. a gamepad). We built a prototype of FaceTouch and conducted two user studies. In the first study we measured the precision of FaceTouch in a display-fixed target selection task using three different selection techniques showing a low error rate of 2% indicate the viability for everyday usage. To asses the impact of different mounting positions on the user performance we conducted a second study. We compared three mounting positions of the touchpad (face, hand and side) showing that mounting the touchpad at the back of the HMD resulted in a significantly lower error rate, lower selection time and higher usability. Finally, we present interaction techniques and three example applications that explore the FaceTouch design space.