AHO-Guide: Automatically Guiding the Head Orientation of a Local User in Augmented Reality to Realign the Field of View with Remote Users

Augmented Reality (AR) offer significant benefits for remote collaboration scenarios. However, when using a Head-Mounted Display (HMD), remote users do not always see exactly what local users are looking at. This happens when there is a spatial offset between the center of the Field of View (FoV) of the HMD’s cameras and the center of the FoV of the user. Such an offset can limit the ability of remote users to see objects of interest, creating confusion and impeding the collaboration. To address this issue, we propose the AHO-Guide techniques. AHO-Guide techniques are Automated Head Orientation Guidance techniques in AR with a HMD. Their goal is to encourage a local HMD user to adjust their head orientation to let remote users have the appropriate FoV of the scene. This paper presents the conception and evaluation of the AHO-Guide techniques. We then propose a set of recommendations from the encouraging results of our experimental study.