One Body, Two Minds: Alternating VR Perspective During Remote Teleoperation of Supernumerary Limbs
Hongyu Zhou, Xincheng Huang, Winston Wijaya, Yi Fei Cheng, David Lindlbauer, Eduardo Velloso, Andrea Bianchi, Zhanna Sarsenbayeva, Anusha Withana

TL;DR
This study explores perspective switching in remote VR teleoperation with supernumerary limbs, comparing shared, anchored, and out-of-body views to optimize coordination, embodiment, and comfort for users.
Contribution
It introduces guest-driven perspective switching methods and evaluates their effects on performance and user experience in supernumerary limb teleoperation.
Findings
Out-of-body view enhances navigation efficiency and reduces errors.
Embedded anchored view supports user embodiment.
Role-dependent trade-offs influence view effectiveness.
Abstract
Remote VR teleoperation with supernumerary robotic limbs enables distant users to operate in another's local space. While a shared first-person view aids hand-eye coordination, locking the guest's camera to the host's head can degrade comfort, embodiment, and coordination. Based on a formative study (N=10) using a virtual supernumerary robotic limbs configuration to stress-test coordination, we propose guest-driven perspective switching from a shared first-person baseline (Shared Embodied View) to two alternatives: (a) a stabilized view with guest-controlled rotation (Embedded Anchored View), and (b) a fully decoupled third-person view (Out-of-body View). We ran a user study with 24 pairs (N=48) who switched between the baseline and proposed views as task demands changed. We measured performance, embodiment, fatigue, physiological arousal, and switching behaviors. Our results reveal…
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Taxonomy
TopicsVirtual Reality Applications and Impacts · Tactile and Sensory Interactions · Teleoperation and Haptic Systems
