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首页> 外文期刊>Visualization and Computer Graphics, IEEE Transactions on >SoftAR: Visually Manipulating Haptic Softness Perception in Spatial Augmented Reality
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SoftAR: Visually Manipulating Haptic Softness Perception in Spatial Augmented Reality

机译： SoftAR ：在空间增强现实中视觉操纵触觉柔软感

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摘要

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.
机译：我们提出了SoftAR，这是一种基于伪触觉机制的新颖的空间增强现实（AR）技术，该机制在视觉上操纵了用户按下柔软的物理物体时所感觉到的柔软感。考虑到基于投影的方法仅会改变物理对象的表面外观的局限性，我们在人类观察的基础上提出了两种投影视觉效果，即表面变形效果（SDE）和身体外观效果（BAE）推动物理对象。 SDE通过受控的柔度参数可视化对象表面的二维变形，而BAE改变推手的颜色。通过心理物理实验，我们确认SDE可以操纵柔软度感知，从而使参与者感知到的柔软度比实际柔软度大得多。此外，仅BAE应用于手指区域的fBAE显着增强了对柔软感的操纵。我们创建了一个计算模型，该模型可以估计应用SDE + fBAE时的感知柔软度。我们构建一个原型SoftAR系统，其中实现了两个应用程序框架。柔软度调节允许用户调节物理对象的柔软度参数，并且柔软度传递允许用户将柔软度替换为另一物体的柔软度。

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