Mid-Air Haptic Rendering of 2D Geometric Shapes With a Dynamic Tactile Pointer
Mid-Air Haptic Rendering of 2D Geometric Shapes With a Dynamic Tactile Pointer
复制标题
使用动态触觉指针对 2D 几何形状进行空中触觉渲染
DOI：
--
复制
发表时间：
2020
影响因子：
2.9
通讯作者：
Marianna Obrist
中科院分区：
文献类型：
--
作者：
Daniel Hajas;D. Pittera;Antony Nasce;Orestis Georgiou;Marianna Obrist
与物理触摸相比，影响超声半空触觉的一个重要挑战是我们失去了某些探索性程序，例如轮廓跟踪。这使得感知几何特性和形状识别的任务更加困难。与此同时，人们对半空中触觉及其在各种新领域的应用越来越感兴趣，这需要我们更好地理解我们如何感知特定的触觉刺激，例如半空中的图标和控制拨盘。我们通过研究在半空中显示2D几何形状的静态和动态方法来解决这一挑战。我们使用超声波半空触觉在静态或动态条件下显示圆形、正方形和三角形。在静态条件下，形状被呈现为半空中的完整轮廓，而在动态条件下，触觉指针围绕形状的周边移动。我们在两个控制实验（n_1 = 34，n_2 = 25$）中测量了被试识别形状的准确性和置信度。结果表明，在动态的条件下，人们识别形状显着更准确，更高的信心。我们还发现，多边形表示为一组单独绘制的触觉笔画，在角落处短暂停顿，大大提高了形状识别的准确性。我们的研究支持在应用场景中设计空中触觉用户界面，例如车内交互或教育辅助技术。
An important challenge that affects ultrasonic mid-air haptics, in contrast to physical touch, is that we lose certain exploratory procedures such as contour following. This makes the task of perceiving geometric properties and shape identification more difficult. Meanwhile, the growing interest in mid-air haptics and their application to various new areas requires an improved understanding of how we perceive specific haptic stimuli, such as icons and control dials in mid-air. We address this challenge by investigating static and dynamic methods of displaying 2D geometric shapes in mid-air. We display a circle, a square, and a triangle, in either a static or dynamic condition, using ultrasonic mid-air haptics. In the static condition, the shapes are presented as a full outline in mid-air, while in the dynamic condition, a tactile pointer is moved around the perimeter of the shapes. We measure participants’ accuracy and confidence of identifying shapes in two controlled experiments ($n_1 = 34, n_2 = 25$). Results reveal that in the dynamic condition people recognise shapes significantly more accurately, and with higher confidence. We also find that representing polygons as a set of individually drawn haptic strokes, with a short pause at the corners, drastically enhances shape recognition accuracy. Our research supports the design of mid-air haptic user interfaces in application scenarios such as in-car interactions or assistive technology in education.
DOI：
10.1007/978-3-319-03068-5_10
发表时间：
2013
期刊：
--
影响因子：
--
作者：
Roast C
通讯作者：
Roast C