Panoramic Perspectives - Evaluating spatial widgets in immersive video through heuristic evaluation

Abstract

This research explores the value of spatial indicator widgets in 360-degree virtual reality (VR) videos to address the research ques- tion of which spatial widget design, if any, is suited to adoption into a user interface for VR 360-degree video playback. It proposes and implements three designs for spatial widgets and compares their effectiveness based on a heuristic study involving three experts. The study found that spatial widgets offer welcome orientation aids, especially in visually challenging environments, despite potential issues with motor load and distraction. Among the evaluated de- signs, the linear compass widget emerged as the most promising but requires redesign for optimal functionality. The thesis concludes that the inclusion of spatial navigation widgets in VR 360-degree video players is a worthy consideration and suggests avenues for future research, such as the integration of these widgets into emerg- ing technologies like volumetric video and augmented reality. The results of this research serve as a first step towards designing more user-friendly VR video interfaces.