Invisible, Inaudible, and Impalpable: Users’ Preferences and Memory Performance for Digital Content in Thin Air
Ovidiu-Andrei Schipor, Radu-Daniel Vatavu · IEEE Pervasive Computing · 2018
We address in this work novel interfaces that enable users to access digital content “in thin air” in the context of smart spaces that superimpose digital layers upon the topography of the physical environment. To this end, we collect and evaluate users’ preferences for pinning digital content in thin air, for which we report medium to high agreement levels (from 0.245 to 0.622, measured on the unit scale) and up to 80% success rates for recalling the locations of invisible, inaudible, and impalpable regions in space with no assistive feedback. Informed by our empirical findings, we elaborate a set of guidelines for practitioners to assist the design of novel user interfaces that implement digital content superimposed on the physical space.