Visual Stabilization of Balance in Virtual Reality Using the HTC Vive
Visual Stabilization of Balance in Virtual Reality Using the HTC Vive
复制标题
使用 HTC Vive 实现虚拟现实中平衡的视觉稳定性
DOI：
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发表时间：
2019
影响因子：
1.6
通讯作者：
L. Cherep
中科院分区：
文献类型：
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作者：
Jonathan W. Kelly;Brenna Klesel;L. Cherep
与闭着眼睛的情况相比，真实环境中的视觉可以稳定平衡。为了使虚拟现实在物理康复等应用中安全和完全有效，虚拟现实中的视觉应该像现实世界中的视觉一样稳定平衡。较老的虚拟现实技术之前被发现可以稳定平衡，但不到现实世界视觉的一半。最近显示技术的进步可能会使虚拟现实中的视觉像现实世界中的视觉一样稳定。这项研究评估了通过HTC Vive观看虚拟环境是否能稳定平衡，以及视觉稳定性是否类似于现实世界的视觉。HTC Vive是一种新的消费级头盔显示器。参与者观看了真实的实验室或虚拟的实验室复制品，并试图在站在两个观看距离中的一个时保持不稳定的站姿，眼睛睁开或闭上。视力在所有情况下都显著稳定，但虚拟环境提供的视觉稳定性不如真实环境。无论环境如何，近距离观看比远距离观看会带来更大的视觉稳定性。与真实环境相比，观看虚拟环境的稳定影响较小，可能会导致虚拟现实中跌倒的风险更大，以及使用虚拟现实进行身体康复的收益较小。
Vision in real environments stabilizes balance compared to an eyes-closed condition. For virtual reality to be safe and fully effective in applications such as physical rehabilitation, vision in virtual reality should stabilize balance as much as vision in the real world. Older virtual reality technology was previously found to stabilize balance but by less than half as much as real-world vision. Recent advancements in display technology might allow for vision in virtual reality to be as stabilizing as vision in the real world. This study evaluated whether viewing a virtual environment through the HTC Vive—a new consumer-grade head-mounted display—stabilizes balance, and whether visual stabilization is similar to that provided by real-world vision. Participants viewed the real laboratory or a virtual replica of the laboratory and attempted to maintain an unstable stance with eyes open or closed while standing at one of two viewing distances. Vision was significantly stabilizing in all conditions, but the virtual environment provided less visual stabilization than did the real environment. Regardless of the environment, near viewing led to greater visual stabilization than did far viewing. The smaller stabilizing influence of viewing a virtual compared to real environment might lead to greater risk of falls in virtual reality and smaller gains in physical rehabilitation using virtual reality.