Head-Mounted Display with Increased Downward Field of View Improves Presence and Sense of Self-Location
Head-Mounted Display with Increased Downward Field of View Improves Presence and Sense of Self-Location
复制标题
具有更大向下视野的头戴式显示器可改善自我定位的存在感和感觉
DOI：
10.1109/tvcg.2021.3106513
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发表时间：
2021
影响因子：
5.2
通讯作者：
Narumi Takuji
中科院分区：
文献类型：
--
作者：
Nakano Kizashi;Isoyama Naoya;Monteiro Diego;Sakata Nobuchika;Kiyokawa Kiyoshi;Narumi Takuji
用于虚拟现实（VR）的常见的现有头戴式显示器（HMD）为用户提供了高度的存在感和体现。然而，用于VR的典型HMD的视场（FoV）在对角线方向上为约90至110 [deg]，在垂直方向上为约70至90 [deg]，这比人类的视场窄。具体地，常规HMD的向下FoV太窄而不能呈现用户化身的身体和脚。为了解决这个问题，我们开发了一种新型的HMD，它具有一对额外的显示单元，以将向下的FoV增加大约60 [deg]。我们全面研究了向下FoV增加对沉浸感的影响，包括VR体验期间的存在感，自我定位感（SoSL），代理感（SoA）和身体所有权感（SoBO）以及头部运动和晕网病的模式作为其次要影响。因此，澄清了具有增加的FoV的HMD改善了存在和SoSL。此外，确认用户可以看到下面的物体，头部运动模式接近真实的行为，并且没有患上晕机症。此外，向下FoV增加对SoBO和SoA的影响有限，因为更容易感知真实的和虚拟身体之间的未对准。
Common existing head-mounted displays (HMDs) for virtual reality (VR) provide users with a high presence and embodiment. However, the field of view (FoV) of a typical HMD for VR is about 90 to 110 [deg] in the diagonal direction and about 70 to 90 [deg] in the vertical direction, which is narrower than that of humans. Specifically, the downward FoV of conventional HMDs is too narrow to present the user avatar's body and feet. To address this problem, we have developed a novel HMD with a pair of additional display units to increase the downward FoV by approximately 60 () [deg]. We comprehensively investigated the effects of the increased downward FoV on the sense of immersion that includes presence, sense of self-location (SoSL), sense of agency (SoA), and sense of body ownership (SoBO) during VR experience and on patterns of head movements and cybersickness as its secondary effects. As a result, it was clarified that the HMD with an increased FoV improved presence and SoSL. Also, it was confirmed that the user could see the object below with a head movement pattern close to the real behavior, and did not suffer from cybersickness. Moreover, the effect of the increased downward FoV on SoBO and SoA was limited since it was easier to perceive the misalignment between the real and virtual bodies.