Gaze tracking with projector
US9916005B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Jan 3, 2013 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | Jan 3, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30041
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention is directed to systems, methods and computer program products for gaze tracking. An exemplary method includes directing light into an eye using a projector; detecting, using an image-capturing module, a reflection from a surface associated with the eye; and determining a line of sight associated with the eye based on the detected reflection. In some embodiments, the light comprises infra-red light. In some embodiments, the projector comprises a laser. In some embodiments, the projector comprises a liquid crystal on silicon (LCoS) chip. In some embodiments, the surface associated with the reflection is at least one of the cornea, the iris, or the retina.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.