Vibrotactile Stimuli for Distinction of Virtual Constraints and Environment Feedback
Vibrotactile Stimuli for Distinction of Virtual Constraints and Environment Feedback
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DOI：
10.1007/978-3-662-44193-0_19
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发表时间：
2014-06
期刊：
影响因子：
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通讯作者：
Adrian Ramos Peon;D. Prattichizzo
中科院分区：
文献类型：
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作者：
Adrian Ramos Peon;D. Prattichizzo
在虚拟现实和遥操作场景中，主动约束可以用来引导用户，防止他进入禁区，并帮助他一般。在触觉界面上，这意味着将由主动约束产生的力叠加在由环境（真实的或虚拟的）产生的力之上。这就产生了一个问题，区分这两个来源的刺激来自感知feedback.In本文中，我们提出了一种方法，包括在上面的虚拟约束所产生的力的振动组件，而由环境所产生的力保持不变。盲实验中，用户必须通过一个包含主动约束和随机定位的对象的情况下导航显示，他们管理更成功地感知到的意外对象的存在与我们的方法比以前存在的。此外，对约束的渗透与经典方法一样好。
In virtual reality and teleoperation scenarios,active constraintscan be used to guide a user, prevent him from entering forbidden regions, and assist him in general. On a haptic interface, this implies superimposing the forces generated by the active constraints on top of the forces that are generated by the environment (real or virtual). This creates the problem of distinguishing from which of these two sources does a stimuli come from while perceiving feedback.In this paper, we present an approach that consists in adding a vibrating component on top of the forces generated by the virtual constraints, while the forces generated by the environment are kept untouched. Blind experiments in which users have to navigate through a scenario containing both active constraints and randomly positioned objects show that they manage to perceive more successfully the presence of the unexpected objects with our approach than with previously existing ones. Moreover, the penetration into the constraints is as good as with the classical approach.