We investigated the efficacy of a novel augmented reality (AR) navigation display called Mirror in the Sky (MitS). AR displays can reduce the distance between virtual imagery content and the user's view of the environment but may have limited benefit for depicting map-based survey information. MitS presents a simulated mirror in the upper visual field, which reflects the topographic layout of the terrain in front of the user. In our experiment, 28 participants used MitS and a track-up Map in virtual reality to perform a route confirmation task, which required participants to decide whether a route could be successfully navigated. A post-trial threat location recall task examined spatial awareness. On that task, accuracy, duration, and subjective workload measures favoured the Map. However, participants with virtual reality experience made more accurate route confirmation decisions with MitS than the Map.
Figure 1: Example of a virtual visit in a furnished house: living room on the left and bedroom on the right. The navigation path is represented with the green breadcrumb.
Stereo and head tracking are considered as distance perception cues in virtual environments. Several studies have investigated their in uence on several tasks. Results were di erent among studies. In this paper, we conducted a complete experiment investigating the in uence of the stereo and the head tracking in the speci c context of virtual visits of houses during architectural project review with clients. We manipulated the stereo and the head tracking in four conditions and we examined the e ects of the two factors on distance estimations (walls size, habitability, etc.), task di culty, presence and simulator sickness. Results revealed a signi cant e ect of the stereo on the judgement of the habitability, the dimensions of the rooms and task di culty. However, for both features, no signi cant e ects were found on the presence and simulator sickness.
CCS CONCEPTS•Human-centered computing → Virtual reality; User studies;
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