Surface-Based Text Entry in Virtual Reality

Develop and validate a reliable method for text entry on physical surfaces while using virtual reality head-mounted displays, addressing the persistent difficulties observed in current surface-based approaches.

Background

Within the design considerations for XR typing, the authors emphasize that headset-mounted, egocentric cameras often fail exactly at the moment of surface touch due to self-occlusions of the fingertips, undermining robust detection required for surface-based text entry.

Despite multiple proposed techniques and hardware augmentations (e.g., rings, wrist-mounted illuminants), the paper states that the problem of enabling dependable surface-based text entry in VR remains unresolved, highlighting a critical technical barrier to practical adoption.

References

And despite the fact that many people are working on hacks for text entry in VR on surfaces, it is still an unsolved problem.

Hovering Over the Key to Text Input in XR  (2406.09579 - Gonzalez-Franco et al., 2024) in Finger Tracking and Typing (Section 2.3)