Effect of Dynamic Blurring FoV Restrictor for Virtual Reality Sickness

Abstract

The virtual reality (VR) has become quite familiar to us, but the VR still has the problem of virtual reality sickness (VR sickness). Dynamically adjusting the pitch-black field of view (FoV) restrictor size is known to reduce VR sickness while maintaining the user experience. However, this method still has a limitation in that it can block the user's view. In study 1, to complement the limitations of traditional FoV restrictor, we propose the blurring FoV restrictor using blur, and compare parameters that dynamically control this. We defined a blurring FoV restrictor by speed, blurring FoV restrictor by speed & rotation, and blurring FoV restrictor by speed, rotation & eye-tracking methods according to the parameter level. In addition, the effects of these methods on VR sickness symptoms and presence were compared. In study 2, we tried to find the effect of VR sickness and user experience for the dynamic adjustment method of the blurring FoV restrictor. Accordingly, the dynamic blurring FoV restrictor in which the blur is dynamically adjusted and the static blurring FoV restrictor in which the blur is not adjusted were compared. This study suggests that the blurring FoV restrictor is an effective tool that reduces VR sickness but does not invade user experience.