俯仰视角影响下的虚拟现实头部旋转增益研究  

Research on Virtual Reality Head Rotation Gain Under the Influence of Pitch Angle

作　　者：谢泽华 傅月瑶 何煜 胥森哲 任洋甫 于歌[4] 张松海 XIE Zehua;FU Yueyao;HE Yu;XU Senzhe;REN Yangfu;YU Ge;ZHANG Songhai(School of Computer Technology and Applications,Qinghai University,Xining 810016,China;Qinghai Provincial Intelligent Computing and Application Laboratory,Xining 810016,China;Department of Computer Science and Technology,Tsinghua University,Beijing 100084,China;Technology and Engineering Center for Space Utilization,Chinese Academy of Sciences,Beijing 100094,China;Mathematical Sciences Center,Tsinghua University,Beijing 100084,China)

机构地区：[1]青海大学计算机技术与应用学院,西宁810016 [2]青海省智能计算与应用实验室,西宁810016 [3]清华大学计算机科学与技术系,北京100084 [4]中国科学院空间应用工程与技术中心,北京100094 [5]清华大学数学科学中心,北京100084

出　　处：《计算机科学》2025年第4期212-221,共10页Computer Science

基　　金：国家重点研发计划(2023YFF0905104);国家自然科学基金(62132012);北京市科技计划项目(Z221100007722001);清华-腾讯互联网创新技术联合实验室。

摘　　要：在虚拟现实中,增加头部旋转增益,可显著提高用户的探索效率。由于空间限制,用户常需进行大幅头部旋转以观察整个场景,这会在一定程度上牺牲舒适性。应用头部旋转增益能够在小幅旋转头部的前提下实现虚拟场景的大角度旋转,使用户能更轻松地观察整个场景。在虚拟现实场景探索过程中,用户经常需要抬头或低头,但目前对于在俯视或仰视状态下的头部旋转阈值方面的研究不足。因此,重点关注用户在仰视、俯视及平视状态下的头部旋转增益差异,并探究加入俯仰角后用户舒适的头部旋转阈值范围。通过设计虚拟场景引导用户在不同的俯仰角度进行头部旋转,并通过心理物理学实验收集用户反馈,对比各个状态下的头部旋转增益。研究结果表明,引入俯仰角后用户对旋转阈值的感知发生了显著变化,不同俯仰角度下舒适的头部旋转阈值具有显著差异。Increasing head rotation gain in virtual reality significantly enhances user exploration efficiency.Due to spatial constraints,users often need to perform extensive head rotations to observe the entire scene,which may sacrifice comfort.Therefore,applying head rotation gain enables wide-angle rotations in virtual scenarios,allowing users to comprehensively view the environment.We note that in exploring virtual reality scenes,users frequently need to look up or down,yet current research lacks sufficient focus on head rotation thresholds in looking up or down positions.Consequently,this paper focuses on the differences in head rotation gain among looking up,looking down,and looking straight,as well as exploring the comfortable head rotation threshold ranges after incorporating pitch angles.By designing virtual scenes that guide users to rotate their heads at various pitch angles and collecting feedback through psychophysical experiments,this study compares head rotation gains across different states.The results indicate that introducing pitch angles significantly affects users’perception of rotation thresholds,with notable differences in comfortable rotation thresholds at various pitch angles.

关 键 词：虚拟现实 重定向行走 旋转增益 俯仰角下的头部旋转 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]