Improving awareness for 3D virtual collaboration by embedding the features of users' physical environments and by augmenting interaction tools with cognitive feedback cues
Improving awareness for 3D virtual collaboration by embedding the features of users' physical environments and by augmenting interaction tools with cognitive feedback cues
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DOI：
10.1007/s12193-013-0134-z
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发表时间：
2014-06-01
影响因子：
2.9
通讯作者：
Gouranton, Valerie
中科院分区：
文献类型：
--
作者：
Duval, Thierry;Thi Thuong Huyen Nguyen;Gouranton, Valerie
临场感对于虚拟环境 (VE) 中的高效交互至关重要。当用户通过大型沉浸式显示系统完全沉浸在 VE 中时，他/她的存在感可能会因为与他/她的物理环境的干扰交互而改变，例如与系统硬件部分的碰撞或跟踪丢失。通过考虑用户的物理特征以及系统硬件的物理特征并将它们嵌入到 VE 中，可以避免这种改变。此外，这些物理特征的 3D 抽象表示对于远程用户之间的协作也很有用，因为它们可以使用户意识到与他/她协作的其他人的物理限制。在本文中，我们介绍了如何使用沉浸式交互式虚拟舱 (IIVC) 模型来获取用户物理环境的虚拟表示，并说明如何在 VE 中的协作导航任务中使用该表示。我们还介绍了如何添加 2D 交互工具的 3D 表示，以应对不对称的协作配置，为用户提供 3D 提示以理解其他人的行为，即使他/她没有完全沉浸在共享 VE 中。最后，我们简要解释了我们计划如何通过嵌入符号 3D 用户表示来增强 3D 交互和协作，该表示将提供有关他/她的姿势的 3D 信息。
The feeling of presence is essential for efficient interaction within Virtual Environments (VEs). When a user is fully immersed within a VE through a large immersive display system, his/her feeling of presence can be altered because of disturbing interactions with his/her physical environment, such as collision with hardware parts of the system or loss of tracking. This alteration can be avoided by taking into account the physical features of the user as well as those of the system hardware and embedding them in the VE. Moreover, the 3D abstract representation of these physical features can also be useful for collaboration between distant users because they can make a user aware of the physical limitations of the others he/she is collaborating with. In this paper we present how we use the Immersive Interactive Virtual Cabin (IIVC) model to obtain this virtual representation of the user's physical environment and we illustrate how this representation can be used in a collaborative navigation task in a VE. We also present how we can add 3D representations of 2D interaction tools in order to cope with asymmetrical collaborative configurations, providing 3D cues for a user to understand the actions of the others even if he/she is not fully immersed in the shared VE. Last, we briefly explain how we plan to enhance 3D interaction and collaboration by embedding a symbolic 3D user representation that will give 3D information about his/her posture.