Egocentric distance judgments in a large screen display immersive virtual environment

I. Alexandrova, Paolina T. Teneva, S. Rosa, Uwe Kloos, H. Bülthoff, B. Mohler
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引用次数: 46

Abstract

People underestimate egocentric distances in head-mounted display virtual environments, as compared to estimates done in the real world. Our work investigates whether distances are still compressed in a large screen display immersive virtual environment, where participants are able to see their own body surrounded by the virtual environment. We conducted our experiment in both the real world using a real room and the large screen display immersive virtual environment using a 3D model of the real room. Our results showed a significant underestimation of verbal reports of egocentric distances in the large screen display immersive virtual environment, while the distance judgments of the real world were closer to veridical. Moreover, we observed a significant effect of distances in both environments. In the real world closer distances were slightly underestimated, while further distances were slightly overestimated. In contrast to the real world in the virtual environment participants overestimated closer distances (up to 2.5m) and underestimated distances that were further than 3m. A possible reason for this effect of distances in the virtual environment may be that participants perceived stereo cues differently when the target was projected on the floor versus on the front of the large screen.
大屏幕显示沉浸式虚拟环境中的自我中心距离判断
与现实世界中的估计相比,人们低估了头戴式显示器虚拟环境中的自我中心距离。我们的工作是研究在一个大屏幕显示的沉浸式虚拟环境中,距离是否仍然被压缩,在这个环境中,参与者能够看到自己的身体被虚拟环境包围。我们在现实世界中使用真实的房间进行实验,在大屏幕显示沉浸式虚拟环境中使用真实房间的3D模型进行实验。我们的研究结果显示,在大屏幕显示沉浸式虚拟环境中,自我中心距离的口头报告显著低估,而现实世界的距离判断更接近真实。此外,我们在两种环境中都观察到距离的显著影响。在现实世界中,较近的距离被略微低估,而较远的距离被略微高估。与现实世界相比,虚拟环境中的参与者高估了近距离(2.5米),低估了超过3米的距离。虚拟环境中距离影响的一个可能原因是,当目标投射在地板上和大屏幕前时,参与者对立体线索的感知不同。
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