Spatial knowledge acquisition with virtual semantic landmarks in mixed reality-based indoor navigation

Bing Liu, Linfang Ding, Liqiu Meng

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

Landmarks are essential and widely used in human navigation. However, many indoor environments lack visually salient landmarks, which leads to difficulties in navigating in and learning complex and similar-looking indoor environments. In this study, we designed and implemented virtual semantic landmarks in Mixed Reality (MR)-based indoor environments and conducted a user study to explore whether such landmarks can assist spatial knowledge acquisition during navigation. More specifically, we employed the untethered, head-mounted mixed reality device Microsoft HoloLens and used iconic holograms to show the semantic landmarks. In the user study, we used sketch map, landmark locating tasks and interview to assess the results of the spatial knowledge acquisition and collect advice on improving the MR-based navigation interface. The results show that virtual semantic landmarks can assist the acquisition of corresponding knowledge, as such landmarks were labeled second most often in landmark locating task. In addition, individual cases show that head-mounted mixed reality devices may influence not only vision, but also height or time perception of certain users. Our result can be applied to facilitate the design of MR-based navigation interfaces and assist spatial knowledge acquisition.

Original languageEnglish
Pages (from-to)305-319
Number of pages15
JournalCartography and Geographic Information Science
Volume48
Issue number4
DOIs
StatePublished - 2021

Keywords

  • Mixed reality
  • indoor navigation
  • spatial knowledge acquisition
  • user study
  • virtual semantic landmark

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