SoftAR: Visually Manipulating Haptic Softness Perception in Spatial Augmented Reality
SoftAR: Visually Manipulating Haptic Softness Perception in Spatial Augmented Reality
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DOI：
10.1109/tvcg.2015.2459792
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发表时间：
2015-11-01
影响因子：
5.2
通讯作者：
Sato, Kosuke
中科院分区：
文献类型：
--
作者：
Punpongsanon, Parinya;Iwai, Daisuke;Sato, Kosuke
我们提出了SoftAR，一种新的空间增强现实（AR）技术的基础上的伪触觉机制，在视觉上操纵的感觉，由用户推动一个柔软的物理对象的柔软。考虑到基于投影的方法只能改变物理对象的表面外观的局限性，我们提出了两种投影视觉效果。例如，表面变形效应（Surface Deformation Effect，简称EFD）和身体外观效应（Body Appearance Effect，简称BAE）。BAE通过受控的柔度参数可视化物体表面的二维变形，BAE改变推手的颜色。通过心理物理学实验，我们证实，软操纵可以操纵柔软度的看法，使参与者感知到显着更大的柔软度比实际的柔软度。此外，其中BAE仅应用于手指区域的fBAE显著增强了对柔软感的操纵。我们创建了一个计算模型，估计感知的柔软度时，应用fBAE。我们构建了一个原型SoftAR系统，其中实现了两个应用框架。柔软度调整允许用户调整物理对象的柔软度参数，并且柔软度转移允许用户用另一对象的柔软度替换柔软度。
We present SoftAR, a novel spatial augmented reality (AR) technique based on a pseudo-haptics mechanism that visually manipulates the sense of softness perceived by a user pushing a soft physical object. Considering the limitations of projection-based approaches that change only the surface appearance of a physical object, we propose two projection visual effects, i. e., surface deformation effect (SDE) and body appearance effect (BAE), on the basis of the observations of humans pushing physical objects. The SDE visualizes a two-dimensional deformation of the object surface with a controlled softness parameter, and BAE changes the color of the pushing hand. Through psychophysical experiments, we confirm that the SDE can manipulate softness perception such that the participant perceives significantly greater softness than the actual softness. Furthermore, fBAE, in which BAE is applied only for the finger area, significantly enhances manipulation of the perception of softness. We create a computational model that estimates perceived softness when SDE+ fBAE is applied. We construct a prototype SoftAR system in which two application frameworks are implemented. The softness adjustment allows a user to adjust the softness parameter of a physical object, and the softness transfer allows the user to replace the softness with that of another object.