Dynamic Redirection for VR Haptics with a Handheld Stick

Dynamic Redirection for VR Haptics with a Handheld Stick
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使用手持棒实现 VR 触觉的动态重定向

DOI:
10.1109/tvcg.2023.3247047
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发表时间:
2023
影响因子:
5.2
通讯作者:
Popescu, Voicu
Popescu, Voicu
中科院分区:
计算机科学1区
文献类型:
--
作者:
Zhou, Yuqi;Popescu, Voicu

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本文提出了一种通用的手持棒触觉重定向方法,允许用户体验复杂的形状与触觉反馈,通过点击和扩展接触,如轮廓跟踪。当用户伸出杆以与虚拟对象接触时,与虚拟对象的接触点和与物理对象的目标接触点被不断更新,并且虚拟杆被重定向以同步虚拟和真实的接触。重定向可以仅应用于虚拟摇杆,也可以同时应用于虚拟摇杆和手。用户研究(N = 26)证实了所提出的重定向方法的有效性。第一个实验遵循两个间隔的强制选择设计,显示偏移检测阈值为[-15cm,+15cm]。第二个实验要求参与者通过点击一个不可见的虚拟物体并用手持棍子追踪其轮廓来猜测其形状,使用真实的世界磁盘作为被动触觉反馈的来源。实验表明,使用我们的触觉重定向方法的参与者可以识别不可见的对象与78%的准确率。
This paper proposes a general handheld stick haptic redirection method that allows the user to experience complex shapes with haptic feedback through both tapping and extended contact, such as in contour tracing. As the user extends the stick to make contact with a virtual object, the contact point with the virtual object and the targeted contact point with the physical object are continually updated, and the virtual stick is redirected to synchronize the virtual and real contacts. Redirection is applied either just to the virtual stick, or to both the virtual stick and hand. A user study (N = 26) confirms the effectiveness of the proposed redirection method. A first experiment following a two-interval forced-choice design reveals that the offset detection thresholds are [−15cm, +15cm]. A second experiment asks participants to guess the shape of an invisible virtual object by tapping it and by tracing its contour with the handheld stick, using a real world disk as a source of passive haptic feedback. The experiment reveals that using our haptic redirection method participants can identify the invisible object with 78% accuracy.
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