Figure 2
From: Humans use Optokinetic Eye Movements to Track Waypoints for Steering
A view of the head-mounted eye tracker scene camera in the test track experiment (top) and simulator experiment (bottom), showing the participant’s view of the constant radius (circular) path. Red dot indicates point of regard. The eye tracker calibrates eye images to the head frame-of-reference. As the participant rolls her head, the world horizontal axis is tilted. To estimate horizontal visual flow – i.e. horizon of the plane of translation – the screen horizontal axis in the simulator, and the car’s horizontal axis on the test track were defined based on the optical visual markers seen on the windcreen, dashboard and screen image. (Text and arrows not visible during experiment).
