How Does Presentation Method and Measurement Protocol Affect Distance Estimation in Real and Virtual Environments?
How Does Presentation Method and Measurement Protocol Affect Distance Estimation in Real and Virtual Environments?
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DOI：
10.1145/1823738.1823744
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发表时间：
2010-07-01
影响因子：
1.6
通讯作者：
Kearney, Joseph K.
中科院分区：
文献类型：
--
作者：
Grechkin, Timofey Y.;Nguyen, Tien Dat;Kearney, Joseph K.
我们进行了两个实验，比较了六种视觉呈现方法在真实环境和虚拟环境中的距离感知，其中使用了定时想象行走或直接蒙眼行走，同时控制了其他几个可能影响距离感知的因素。我们的呈现条件包括无障碍的真实世界、通过HMD看到的真实世界、通过HMD看到的虚拟世界、通过HMD看到的增强现实、在多个身临其境的大屏幕上看到的虚拟世界以及在多个身临其境的大屏幕上看到的真实世界的基于照片的呈现。我们发现，在头盔显示器和虚拟环境的大屏幕演示中，存在类似程度的距离低估。我们还发现，虽然佩戴头盔会导致一定程度的距离低估，但这种影响取决于所使用的测量方案。最后，我们发现，在大屏幕沉浸式显示系统中，基于照片的演示并不有助于提高距离感知。讨论的重点是与以往在真实和虚拟环境中的距离估计工作的相似和不同之处。
We conducted two experiments that compared distance perception in real and virtual environments in six visual presentation methods using either timed imagined walking or direct blindfolded walking, while controlling for several other factors that could potentially impact distance perception. Our presentation conditions included unencumbered real world, real world seen through an HMD, virtual world seen through an HMD, augmented reality seen through an HMD, virtual world seen on multiple, large immersive screens, and photo-based presentation of the real world seen on multiple, large immersive screens. We found that there was a similar degree of underestimation of distance in the HMD and large-screen presentations of virtual environments. We also found that while wearing the HMD can cause some degree of distance underestimation, this effect depends on the measurement protocol used. Finally, we found that photo-based presentation did not help to improve distance perception in a large-screen immersive display system. The discussion focuses on points of similarity and difference with previous work on distance estimation in real and virtual environments.