RedirectedDoors: Redirection While Opening Doors in Virtual Reality

RedirectedDoors: Redirection While Opening Doors in Virtual Reality
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DOI：
10.1109/vr51125.2022.00066
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发表时间：
2022-03
期刊：
2022 IEEE Conference on Virtual Reality and 3D User Interfaces (VR)
影响因子：
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通讯作者：
Yukai Hoshikawa;Kazuyuki Fujita;Kazuki Takashima;M. Fjeld;Y. Kitamura
Yukai Hoshikawa;Kazuyuki Fujita;Kazuki Takashima;M. Fjeld;Y. Kitamura
中科院分区：
其他
文献类型：
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作者：
Yukai Hoshikawa;Kazuyuki Fujita;Kazuki Takashima;M. Fjeld;Y. Kitamura

文献摘要

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我们提出了RedirectedDoors，这是一种新的空间有效的技术，用于在VR中重定向，专注于开门行为。该技术通过以门被打开的一定角度比率旋转整个虚拟环境（VE）来操纵用户的行走方向。这个比率称为门旋转增益。同时，虚拟门的位置保持不被操纵，使得可以确保真实的开门用户体验。我们设计并实现了旋转操作算法和两种类型的开门接口;有和没有门把手型被动触觉prop. Then我们进行了用户研究（N = 12），以调查重定向性能和用户反馈，因为我们检查了三个自变量：门旋转增益，开门接口，开门方向（推/拉）。从结果来看，估计的检测阈值通常显示出更高的空间效率的重定向与我们的技术。我们的研究结果还表明，提供触觉反馈导致更高的重定向的可接受性，但同时支持更高的主观真实感和更少的不适感。根据我们的结果，我们讨论了增益和开门方向的组合可以共同提供更低的可接受性和更高的可接受性。
We propose RedirectedDoors, a novel space-efficient technique for redirection in VR focused on door-opening behavior. This technique manipulates the user’s walking direction by rotating the entire virtual environment (VE) at a certain angular ratio of the door being opened. This ratio is called door rotation gain. At the same time, the virtual door’s position is kept unmanipulated so that a realistic door-opening user experience can be ensured. We designed and implemented the rotational manipulation algorithm and two types of door-opening interfaces; with and without a doorknob-type passive haptic prop. We then conducted a user study (N = 12) to investigate redirection performance and user feedback as we examined three independent variables: door rotation gain, door-opening interface, and door-opening direction (push/pull). From the results, the estimated detection thresholds generally showed a higher space efficiency of redirection with our technique. Our results also showed that providing the haptic feedback led to a higher noticeability of redirection, but at the same time supported a higher subjective sense of realism and less discomfort. Following our results, we discuss which combinations of gain and door-opening direction can jointly provide lower noticeability and higher acceptability.