What we did:We built and evaluated nine novel locomotion concepts for foot-based teleportation in Virtual Reality, using the 3D position and pressure of the user's feet as input modalities.
What we found:We found that while foot-based teleportation methods require longer task completion times than traditional controller-based teleportation, they provide a hands-free engagement that could enhance interactions in virtual environments.
Takeaway:Our work suggests that implementing foot-based locomotion can improve user experience in Virtual Reality applications by allowing simultaneous interaction tasks, though trade-offs in speed and accuracy should be assessed for specific applications.
Abstract
Virtual Reality (VR) allows for infinitely large environments. However, the physical traversable space is always limited by real-world boundaries. This discrepancy between physical and virtual dimensions renders traditional locomotion methods used in real world unfeasible. To alleviate these limitations, research proposed various artificial locomotion concepts such as teleportation, treadmills, and redirected walking. However, these concepts occupy the user’s hands, require complex hardware or large physical spaces. In this paper, we contribute nine VR locomotion concepts for foot-based locomotion, relying on the 3D position of the user’s feet and the pressure applied to the sole as input modalities. We evaluate our concepts and compare them to state-of-the-art point & teleport technique in a controlled experiment with 20 participants. The results confirm the viability of our approaches for foot-based and engaging locomotion. Further, based on the findings, we contribute a wireless hardware prototype implementation.
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