Multi-feature gaze tracking system and method
US10061383B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 16, 2016 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Sep 16, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/193
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is provided for determining a point of gaze directed at a graphical display. The method comprises: a) acquiring an image of at least one eye of a user containing at least one gaze aspect and at least one reference aspect; b) extracting image aspects from the image, the image aspects comprising a set of reference aspects and a set of gaze aspects corresponding to the image; c) extracting a set of features for each of said image aspects; d) computing a set of feature vectors between said set of gaze aspects and said set of reference aspects; e) computing a point of gaze for each of said set of feature vectors, using a predefined mathematical relationship; and f) using a predefined rule to combine the computed points of gaze into a final point of gaze on the graphical display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.