First-person experience and usability of co-located interaction in a projection-based virtual environment
First-person experience and usability of co-located interaction in a projection-based virtual environment
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DOI：
10.1145/1101616.1101622
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发表时间：
2005-11
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影响因子：
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通讯作者：
Andreas Simon
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作者：
Andreas Simon
基于大屏幕投影的显示系统通常不是由单个用户单独使用，而是由一小群人共享。我们开发了一种交互范例，允许多个用户在基于传统单视图立体投影的显示系统中共享虚拟环境，每个用户处理相同的界面并具有对环境的完整第一人称体验。多视点图像允许在传统基于投影的显示中为多个用户使用空间交互技术。我们在定性的可用性研究中评估了多视点图像用于光线选择和直接对象操纵的有效性，并表明与多视点图像的交互可与完全头部跟踪(单用户)交互相媲美。基于光线投射和直接物体操纵，使用跟踪式PDA作为常用的交互设备，提出了一种在传统的基于投影的虚拟环境中实现多用户协同交互的技术。对VRGEO演示器的评估表明，这种范例允许多个用户各自对复杂的、交互的虚拟环境进行全面的第一人称体验。VRGEO演示器是一种用于审查石油和天然气行业中复杂的3D地质地震数据集的应用程序。
Large screen projection-based display systems are very often not used by a single user alone, but shared by a small group of people. We have developed an interaction paradigm allowing multiple users to share a virtual environment in a conventional single-view stereoscopic projection-based display system, with each of the users handling the same interface and having a full first-person experience of the environment.Multi-viewpoint images allow the use of spatial interaction techniques for multiple users in a conventional projection-based display. We evaluate the effectiveness of multi-viewpoint images for ray selection and direct object manipulation in a qualitative usability study and show that interaction with multi-viewpoint images is comparable to fully head-tracked (single-user) interaction. Based on ray casting and direct object manipulation, using tracked PDA's as common interaction device, we develop a technique for co-located multi-user interaction in conventional projection-based virtual environments. Evaluation of the VRGEO Demonstrator, an application for the review of complex 3D geo-seismic data sets in the oil-and-gas industry, shows that this paradigm allows multiple users to each have a full first-person experience of a complex, interactive virtual environment.