Granulated rest frames as a technique to mitigate visually-induced motion sickness and their application
| dc.contributor.advisor | Kopper, Regis | |
| dc.contributor.author | Cao, Zekun | |
| dc.date.accessioned | 2022-06-15T18:43:12Z | |
| dc.date.available | 2022-06-15T18:43:12Z | |
| dc.date.issued | 2022 | |
| dc.department | Mechanical Engineering and Materials Science | |
| dc.description.abstract | As a visual cue, rest-frames are isotropically vertical and relatively stationary to subjects; they are used to alleviate visually induced motion sickness in the virtual reality experience. However, the use of rest-frames as a visually induced motion sickness–alleviation technique poses several challenges for the user. This is primarily because the existing design is content-based, not graphics-driver-level, so it cannot be seamlessly applied to various platforms. The design also blocks some peripheral vision, sacrificing the user’s spatial-recognition ability. This dissertation aims to understand and improve rest-frames’ design, making their use a viable technique to reduce visually induced motion sickness. This technique is graphics-driver-level, so it can run seamlessly in any environment. With this goal, the dissertation proposes and validates a novel design of rest-frames inspired by amodal completion: granulated rest-frames. A generic method to process stereoscopic videos to study user-experience is also presented. The new design implements rest-frames as visual noise with changeable settings to maintain the user’s spatial-recognition ability and provide more flexibility at the graphics-driver level. This study finds the optimal size and sparsity of granulated rest-frames by investigating the user’s visual-search performance at different settings. It also validates the effect of granulated rest-frames in alleviating visually induced motion sickness in interactive virtual environments. The main finding is that granulated rest-frames can help first-time users adapt to a virtual environment more quickly without affecting the spatial-recognition ability of their peripheral vision. This dissertation also demonstrates the applicability of granulated rest-frames in stereoscopic videos in a preliminary study, as part of which a generic method to investigate users’ reactions to 360° videos is proposed. The dissertation also offers an experimental design to explore the utilization of granulated rest-frames’ effects in general-purpose interaction techniques in a future study. | |
| dc.identifier.uri | ||
| dc.subject | Computer science | |
| dc.title | Granulated rest frames as a technique to mitigate visually-induced motion sickness and their application | |
| dc.type | Dissertation |