VRoamer: Generating On-The-Fly VR Experiences While Walking inside Large, Unknown Real-World Building Environments
VRoamer: Generating On-The-Fly VR Experiences While Walking inside Large, Unknown Real-World Building Environments
复制标题
VRoamer：在大型、未知的真实建筑环境中行走时生成动态 VR 体验
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
Andrew D. Wilson
中科院分区：
文献类型：
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作者：
Lung;E. Ofek;Christian Holz;Andrew D. Wilson
虚拟现实（VR）中的程序生成已被用于使虚拟世界适应各种室内环境，将不同的几何形状和内部与虚拟环境相匹配。然而，这类应用程序需要在使用之前了解物理环境或预先扫描，然后生成相应的虚拟场景，从而将虚拟体验限制在受控空间内。在本文中，我们介绍了VRoamer，它使用户能够在看不见的物理空间中行走，VRoamer会自动生成一个虚拟场景。VRoamer可以根据办公楼的大小进行缩放，提取可行走区域并实时检测物理障碍物，如果其大小适合物理可行走区域，则实例化预创建的虚拟房间，或者生成通往未被发现的物理区域的虚拟走廊和门。这些虚拟结构的使用允许VRoamer(1)暂时阻挡用户的通道，从而减缓他们的速度，同时增加VRoamer对新发现的物理区域的洞察力，(2)阻止用户看到当前虚拟场景之外的变化，以及(3)混淆物理环境的外观。VRoamer动画虚拟对象，以反映动态发现的物理环境的变化，如人走过或障碍变得明显。在我们的概念验证研究中，参与者能够在程序生成的地下城体验中走很长的距离，并报告了高水平的沉浸感。
Procedural generation in virtual reality (VR) has been used to adapt the virtual world to various indoor environments, fitting different geometries and interiors with virtual environments. However, such applications require that the physical environment be known or pre-scanned prior to use to then generate the corresponding virtual scene, thus restricting the virtual experience to a controlled space. In this paper, we present VRoamer, which enables users to walk unseen physical spaces for which VRoamer procedurally generates a virtual scene on-the-fly. Scaling to the size of office buildings, VRoamer extracts walkable areas and detects physical obstacles in real time, instantiates pre-authored virtual rooms if their sizes fit physically walkable areas or otherwise generates virtual corridors and doors that lead to undiscovered physical areas. The use of these virtual structures allows VRoamer to (1) temporarily block users' passage, thus slowing them down while increasing VRoamer's insight into newly discovered physical areas, (2) prevent users from seeing changes beyond the current virtual scene, and (3) obfuscate the appearance of physical environments. VRoamer animates virtual objects to reflect dynamically discovered changes of the physical environment, such as people walking by or obstacles that become apparent. In our proof-of-concept study, participants were able to walk long distances through a procedurally generated dungeon experience and reported high levels of immersion.
影响因子：
1.8
作者：
N. C. Nilsson;Tabitha C. Peck;G. Bruder;Eric Hodgson;S. Serafin;M. Whitton;Frank Steinicke;Evan Suma Rosenberg
通讯作者：
N. C. Nilsson;Tabitha C. Peck;G. Bruder;Eric Hodgson;S. Serafin;M. Whitton;Frank Steinicke;Evan Suma Rosenberg