ACM Spatial User Interaction (SUI)/2024
Empirical Trajectory Modeling for Gaze-and-Pinch Interactions in Spatial Computing
Adapting classical Fitts' law models to predict motor targeting velocity when eye saccades precede physical index-thumb pinch gestures.
Spatial computing fundamentally decouples targeting (eye tracking) from actuation (hand pinch). Classical Fitts' law calculations fail to accurately predict task completion time when gaze jitter introduces motor targeting desynchronization.
We propose a modified dual-stage predictive formulation. Applying dynamic magnetic targeting snap radiuses reduced missed pinch attempts by 41% across high-density spatial tool palettes.
KEY INSIGHT:
In spatial design, the eyes are not a mouse; they are an intent detector requiring forgiving target bounds.
VENUE / JOURNALACM Spatial User Interaction (SUI)
YEAR2024
DOI IDENTIFIER10.1145/3678912.3689401
RESEARCH TOPICS
Spatial UIFitts' LawEye-TrackingvisionOS Interaction
