Proceedings of the 28th Annual ACM Symposium on User Interface Software & Technology - UIST '15
We introduce Orbits, a novel gaze interaction technique that enables hands-free input on smart watches. The technique relies on moving controls to leverage the smooth pursuit movements of the eyes and detect whether and at which control the user is looking at. In Orbits, controls include targets that move in a circular trajectory in the face of the watch, and can be selected by following the desired one for a small amount of time. We conducted two user studies to assess the technique's
... on and robustness, which demonstrated how Orbits is robust against false positives triggered by natural eye movements and how it presents a hands-free, high accuracy way of interacting with smart watches using off-the-shelf devices. Finally, we developed three example interfaces built with Orbits: a music player, a notifications face plate and a missed call menu. Despite relying on moving controls -very unusual in current HCI interfaces -these were generally well received by participants in a third and final study. Figure 1. Top: a user raises the volume of his smart watch music player using Orbits gaze input controls. The UI shows the volume, pause/play and previous/next controls with orbiting targets for gaze selection. Bottom: how Orbits enables gaze input on smart watches. The technique can robustly detect which of the controls is actively being followed by correlating each Orbits' target with the user's gaze.