How Subtle Can It Get? A Trimodal Study of Ring-sized Interfaces for One-Handed Drone Control
summary
Compares four one-handed control mappings implemented first on a phone and then in a ring prototype: uni-modal touch baseline (M1), bi-modal touch+IMU (M2), tri-modal touch+IMU+force (M3) and wrist+force (M4). M3 yields a 16.54% faster completion time than the two‑hand baseline, and the ring runs 27% faster than the phone. Final study (n=12) shows thumb presses inside a 1.08×0.61 cm2 area, wrist amplitudes ~43° pitch and ~46° roll, and user ratings of usefulness 3.92/5, ease 3.58/5. M3 tri-modal (touch+IMU+force) subtle wrist gestures
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