Visual display with illuminators for gaze tracking
US8562136B2 · kind B2 · utility
14Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 2012 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | May 7, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/19
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A visual display characterized by hidden reference illuminators is adapted to emit invisible light for generating corneo-scleral reflections on an eye watching a screen surface of the display. The tracking of such reflections and the pupil center provides input for gaze tracking. A method for equipping and an LCD with a reference illuminator are also provided. A system and method for determining a gaze point of an eye watching a visual display comprising reference illuminators are further provided. The determination of the gaze point may be based on an ellipsoidal cornea model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.