3D Selection Vault

Radi-Eye (Look & Cross)

Also known as Look & Cross, Gaze-activated head-crossing

Looking at an object pops up a radial menu; the user looks at a menu item and then moves the head cursor across it to select, all without hands.

How it works

Gaze dwelling on an object or invoking gesture opens a pop-up radial interface around it. The user pre-selects a widget by looking at it, which reveals a head-controlled cursor; moving the head across the gazed widget completes the selection (Look & Cross). Because the eyes and head normally move at an offset, simply looking does not trigger anything. Crossing can continue into head-controlled manipulation (e.g. a slider), and gaze can open nested levels. Demonstrated in a VR media player, an AR smart home controller and a city-building game; a study (N=12, HTC Vive Pro Eye) varying radial size and orientation found fast, accurate selection with low error.

Papers