Extending 3-DoF Metrics to Model User Behaviour Similarity in 6-DoF Immersive Applications

Extending 3-DoF Metrics to Model User Behaviour Similarity in 6-DoF Immersive Applications
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扩展 3-DoF 指标以对 6-DoF 沉浸式应用中的用户行为相似性进行建模

DOI:
10.1145/3587819.3590976
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发表时间:
2023
期刊:
--
影响因子:
--
通讯作者:
Rossi S
Rossi S
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--
文献类型:
--
作者:
Rossi S

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虚拟现实和增强现实等沉浸式现实技术开创了以用户为中心的系统的新时代,其中编码-交付-渲染链的每个方面都是根据用户的交互量身定制的。理解用户的实际交互性和行为仍然是一个开放的挑战,也是实现这种以用户为中心的系统的关键一步。我们的主要目标是扩展现有的行为方法的适用性,研究用户导航的情况下,6自由度(DoF)。具体来说,我们首先比较了6自由度的导航与3自由度的导航,突出了主要的差异和新颖性。然后,我们定义了新的指标,旨在更好地模拟6自由度系统中用户之间的行为相似性。我们验证和测试我们的解决方案上的真实的导航路径的用户与动态体积媒体在6自由度虚拟现实条件。我们的研究结果表明,同时考虑用户位置和观看方向的指标更好地执行在6自由度系统中导航时检测用户相似性。拥有易于使用但强大的指标,支持多种工具,并回答“我们如何检测两个用户是否查看相同的内容?”“为以用户为中心的系统打开新解决方案的大门。
Immersive reality technologies, such as Virtual and Augmented Reality, have ushered a new era of user-centric systems, in which every aspect of the coding-delivery-rendering chain is tailored to the interaction of the users. Understanding the actual interactivity and behaviour of the users is still an open challenge and a key step to enabling such a user-centric system. Our main goal is to extend the applicability of existing behavioural methodologies for studying user navigation in the case of 6 Degree-of-Freedom (DoF). Specifically, we first compare the navigation in 6-DoF with its 3-DoF counterpart highlighting the main differences and novelties. Then, we define new metrics aimed at better modelling behavioural similarities between users in a 6-DoF system. We validate and test our solutions on real navigation paths of users interacting with dynamic volumetric media in 6-DoF Virtual Reality conditions. Our results show that metrics that consider both user position and viewing direction better perform in detecting user similarity while navigating in a 6-DoF system. Having easy-to-use but robust metrics that underpin multiple tools and answer the question "how do we detect if two users look at the same content?" open the gate to new solutions for a user-centric system.
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发表时间: 2022-10
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