W-FYD: A Wearable Fabric-Based Display for Haptic Multi-Cue Delivery and Tactile Augmented Reality
W-FYD: A Wearable Fabric-Based Display for Haptic Multi-Cue Delivery and Tactile Augmented Reality
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DOI：
10.1109/toh.2017.2708717
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发表时间：
2018-04-01
影响因子：
2.9
通讯作者：
Bianchi, Matteo
中科院分区：
文献类型：
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作者：
Fani, Simone;Ciotti, Simone;Bianchi, Matteo
尽管柔软度的重要性，但没有证据表明可穿戴触觉系统能够提供可控的柔软度提示。在这里，我们介绍了可穿戴织物屈服显示器（W-FYD），这是一种基于织物的显示器，可用于多线索传递，可佩戴在用户的手指上，并首次实现主动和被动柔软度探索。它还可以在指垫下引起滑动效应。通过两个电机调节织物的拉伸状态，可以获得给定的刚度曲线。此外，提升机构允许使织物与使用者的指垫接触，以实现被动柔软性呈现。在本文中，我们描述了W-FYD的体系结构，以及其刚度工作空间，频率响应和柔度渲染能力的彻底表征。我们还计算了主动和被动探索条件下的器械可察觉差异，用于线性和非线性刚度渲染以及滑动方向感知。还考虑了器械重量的影响。此外，性能的参与者和他们的主观定量评价，在检测滑动方向和软歧视任务的报告。最后，应用W-FYD在触觉增强现实开放触诊进行了讨论，在人机交互的许多领域打开有趣的观点。
Despite the importance of softness, there is no evidence of wearable haptic systems able to deliver controllable softness cues. Here, we present the Wearable Fabric Yielding Display (W-FYD), a fabric-based display for multi-cue delivery that can be worn on a user's finger and enables, for the first time, both active and passive softness exploration. It can also induce a sliding effect under the finger-pad. A given stiffness profile can be obtained by modulating the stretching state of the fabric through two motors. Furthermore, a lifting mechanism allows to put the fabric in contact with the user's finger-pad, to enable passive softness rendering. In this paper, we describe the architecture of W-FYD, and a thorough characterization of its stiffness workspace, frequency response, and softness rendering capabilities. We also computed device Just Noticeable Difference in both active and passive exploratory conditions, for linear and non-linear stiffness rendering as well as for sliding direction perception. The effect of device weight was also considered. Furthermore, performance of participants and their subjective quantitative evaluation in detecting sliding direction and softness discrimination tasks are reported. Finally, applications of W-FYD in tactile augmented reality for open palpation are discussed, opening interesting perspectives in many fields of human-machine interaction.