Spatial Referencing for Anywhere, Anytime Augmented Reality

Augmented Reality (AR) systems can effectively enhance collaboration in the real world by providing useful spatial cues through virtual overlays. In particular, AR can be used to facilitate referencing a location in space as required in many collaborative activities. However, the goal of supporting spatial referencing anywhere at any time is hindered by issues with current AR technology, such as the lack of a precise environment model, unreliable tracking, and difficulty in synchronizing among different devices. This paper proposes a research agenda that innovates in the domain of interaction techniques for spatial referencing for everywhere AR.