3D Selection Vault

Radial Pursuit

Also known as RP

Looking at a cluttered area makes the objects there spread out in a circle, and the object whose movement the eyes follow is selected.

How it works

When the gaze lands on a region, a bounding sphere of fixed radius gathers the objects inside it. These objects then move outward to evenly spaced positions on a circle. During the expansion the system accumulates the distance between the gaze point and each moving object; the object with the smallest total is selected if it is below a confidence threshold (smooth-pursuit matching). In a small study (N=8) on a cluttered scene it performed like gaze dwell on the same expanded layout, with higher satisfaction and lower fatigue.

Papers