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Gaining the High Ground: Teleportation to Mid-Air Targets in Immersive Virtual Environments

Tim Weissker,Pauline Bimberg,Aalok Shashidhar Gokhale,T. Kuhlen,Bernd Froehlich

Published 2023 in IEEE Transactions on Visualization and Computer Graphics

ABSTRACT

Most prior teleportation techniques in virtual reality are bound to target positions in the vicinity of selectable scene objects. In this paper, we present three adaptations of the classic teleportation metaphor that enable the user to travel to mid-air targets as well. Inspired by related work on the combination of teleports with virtual rotations, our three techniques differ in the extent to which elevation changes are integrated into the conventional target selection process. Elevation can be specified either simultaneously, as a connected second step, or separately from horizontal movements. A user study with 30 participants indicated a trade-off between the simultaneous method leading to the highest accuracy and the two-step method inducing the lowest task load as well as receiving the highest usability ratings. The separate method was least suitable on its own but could serve as a complement to one of the other approaches. Based on these findings and previous research, we define initial design guidelines for mid-air navigation techniques.

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