Method and system for controlling illuminators
US10342425B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2018 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Mar 28, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0138
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for controlling illuminators in an eye tracking system and a corresponding system are disclosed. The system includes a plurality of illuminators arranged such that each illuminator of the illuminators is located at a respective fixed position in relation to an eye of a user when using the system. The method comprises illuminating the eye of the user by means of the plurality of illuminators, and receiving an image of the eye of the user from an image sensor, the image resulting from the image sensor detecting light from the plurality of illuminators reflected from the eye of the user and reflected from an optic arrangement located between the plurality of illuminators and the eye of the user. The method further comprises determining a pupil position of a representation in the image of a pupil of the eye, and identifying one or more blobs in the image, wherein a blob is a representation in the image of a reflection from the optic arrangement of light from an illuminator of the plurality of illuminators. On a condition that there is at least one blob of the one or more blobs for which one or more predefined criteria are met, the method comprises identifying an illuminator of…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.