Design and Empirical Evaluation of a Novel Near-field Interaction Metaphor on Distant Object Manipulation in VR

Chia Yang Lee, Wei An Hsieh, David Brickler, Sabarish V. Babu, Jung-Hong Chuang

研究成果: Conference contribution同行評審

摘要

Manipulating objects in immersive virtual environments has been studied for decades, but is still considered as a challenging problem. Current methods for manipulating distant objects still poses issues such as lack of precision and accuracy, and only a limited set of transformations is supported. In this paper, we proposed three metaphors: a near-field widget-based metaphor, and two near-field metaphors with scaled replica, one is unimanual and the other is bimanual. The widget-based metaphor is an extension of Widgets [20], but supports translation, scaling (anchored scaling) and rotation with multi-level DOF (degree-of-freedom) separation. The near-field metaphors with scaled replica can take advantage of the finer motion control and sharper vision in arm-reach manipulations, and thus increases the manipulation precision. Moreover, manipulating the replica via bounding box's primitives makes the support of translation, scaling (anchored scaling) and rotation with multi-level DOF separation possible, and also leads to an intuitive interface. The support of multi-level DOF separation may increase the manipulation precision and offer more manipulation flexibility as well. We conducted a between-subjects empirical study with 51 participants to compare the three metaphors in terms of effectiveness measures, user experience and user impression. The findings from this study revealed that the unimanual metaphor with scaled replica (UMSR) yielded the highest efficiency. The widget-based metaphor was slower, and the bimanual metaphor with scaled replica (BMSR) yielded lower movement economy and, in one case, was less accurate. However, the subjective impressions were most favorable in the bimanual metaphor with scaled replica (BMSR). Thus, there may be some discrepancy between perceived comfort and user performance inherent in the near-field bimanual scaled-replica interactions.

原文English
主出版物標題Proceedings - SUI 2021
主出版物子標題ACM Spatial User Interaction 2021
編輯Stephen N. Spencer
發行者Association for Computing Machinery, Inc
頁面1-11
頁數11
ISBN(電子)9781450390910
DOIs
出版狀態Published - 9 11月 2021
事件9th ACM Symposium on Spatial User Interaction, SUI 2021 - Virtual, Online, United States
持續時間: 9 11月 202110 11月 2021

出版系列

名字Proceedings - SUI 2021: ACM Spatial User Interaction 2021

Conference

Conference9th ACM Symposium on Spatial User Interaction, SUI 2021
國家/地區United States
城市Virtual, Online
期間9/11/2110/11/21

指紋

深入研究「Design and Empirical Evaluation of a Novel Near-field Interaction Metaphor on Distant Object Manipulation in VR」主題。共同形成了獨特的指紋。

引用此