Gaze tracking via eye gaze model
US9864430B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2015 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Mar 15, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/193
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Examples are disclosed herein that are related to gaze tracking via image data. One example provides, on a gaze tracking system comprising an image sensor, a method of determining a gaze direction, the method comprising acquiring image data via the image sensor, detecting in the image data facial features of a human subject, determining an eye rotation center based upon the facial features using a calibrated face model, determining an estimated position of a center of a lens of an eye from the image data, determining an optical axis based upon the eye rotation center and the estimated position of the center of the lens, determining a visual axis by applying an adjustment to the optical axis, determining the gaze direction based upon the visual axis, and providing an output based upon the gaze direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.