Touching the void: direct-touch interaction for intangible displays
Touching the void: direct-touch interaction for intangible displays
复制标题
触摸虚空：无形显示的直接触摸交互
DOI：
10.1145/1753326.1753725
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
Y. Hung
中科院分区：
文献类型：
--
作者：
Liwei Chan;HuiShan Kao;Mike Y. Chen;Ming;Jane Yung;Y. Hung
在这篇文章中，我们探索了应用和研究方法来改善无形显示器上的直接触摸交互所面临的挑战。直接触摸交互简化了对象操作，因为它将输入和显示结合到单个集成界面中。虽然传统的基于有形显示的直接触摸技术很常见，但在无形显示范例中类似的直接触摸交互带来了许多挑战。由于缺乏触觉反馈，即使在最简单的目标捕获任务中，无形显示器上的直接触摸交互也可能表现出较差的性能。为了研究这个问题，我们创造了一个无形显示器的原型。在最初的研究中，我们收集了与我们无形显示器上显示的目标的3D位置的解释相对应的用户差异数据。结果显示，参与者在确定目标的z坐标方面表现不佳，在系统内执行屏幕触摸时也不准确。30%的定位操作与实际表面的误差大于30 mm。这一发现引发了我们设计第二项研究的兴趣，在这项研究中，我们量化了存在视觉和音频反馈的任务时间。伪影视觉反馈被证明在提高用户性能和满意度方面都有帮助。
In this paper, we explore the challenges in applying and investigate methodologies to improve direct-touch interaction on intangible displays. Direct-touch interaction simplifies object manipulation, because it combines the input and display into a single integrated interface. While traditional tangible display-based direct-touch technology is commonplace, similar direct-touch interaction within an intangible display paradigm presents many challenges. Given the lack of tactile feedback, direct-touch interaction on an intangible display may show poor performance even on the simplest of target acquisition tasks. In order to study this problem, we have created a prototype of an intangible display. In the initial study, we collected user discrepancy data corresponding to the interpretation of 3D location of targets shown on our intangible display. The result showed that participants performed poorly in determining the z-coordinate of the targets and were imprecise in their execution of screen touches within the system. Thirty percent of positioning operations showed errors larger than 30mm from the actual surface. This finding triggered our interest to design a second study, in which we quantified task time in the presence of visual and audio feedback. The pseudo-shadow visual feedback was shown to be helpful both in improving user performance and satisfaction.