论文标题
更少的是:使用几何代数有效的网络VR转换处理
Less Is More: Efficient Networked VR Transformation Handling Using Geometric Algebra
论文作者
论文摘要
由于共享,协作,网络,虚拟环境变得越来越流行,因此在网络上的模型和场景转换数据的有效传输方面出现了各种挑战。由于用户沉浸式和实时交互在很大程度上取决于VR流同步,因此传输整个数据似乎不是一种合适的方法,尤其是对于涉及大量用户的会话。会话记录是VR应用程序的另一个势头功能,也面临同样的挑战。选择合适的数据格式可以减少占用量,同时还可以有效复制VR会话并优化了用于分析和深度学习算法的后处理。在这项工作中,我们提出了两种算法,可以在网络多人游戏会话的上下文中应用,以从用户的基于手动的VR HMD中有效传输位移和方向数据。此外,我们提出了一种新的方法,描述了该会话中交换数据的有效VR记录。我们的算法基于双重问题和多元电视的使用,会影响网络消耗率,并且在涉及多个用户的情况下非常有效。通过在网络上发送较少的数据并在本地框架之间进行插值,我们设法获得了比当前最新方法更好的视觉结果。最后,我们证明,出于记录目的,存储较少的数据并按需将数据插值可在定量接近原始数据集中产生数据集。
As shared, collaborative, networked, virtual environments become increasingly popular, various challenges arise regarding the efficient transmission of model and scene transformation data over the network. As user immersion and real-time interactions heavily depend on VR stream synchronization, transmitting the entire data sat does not seem a suitable approach, especially for sessions involving a large number of users. Session recording is another momentum-gaining feature of VR applications that also faces the same challenge. The selection of a suitable data format can reduce the occupied volume, while it may also allow effective replication of the VR session and optimized post-processing for analytics and deep-learning algorithms. In this work, we propose two algorithms that can be applied in the context of a networked multiplayer VR session, to efficiently transmit the displacement and orientation data from the users' hand-based VR HMDs. Moreover, we present a novel method describing effective VR recording of the data exchanged in such a session. Our algorithms, based on the use of dual-quaternions and multivectors, impact the network consumption rate and are highly effective in scenarios involving multiple users. By sending less data over the network and interpolating the in-between frames locally, we manage to obtain better visual results than current state-of-the-art methods. Lastly, we prove that, for recording purposes, storing less data and interpolating them on-demand yields a data set quantitatively close to the original one.