Patent · US Active

Eye-tracking system and method for pupil detection, associated systems and computer programs

US11156831B2 · kind B2 · utility

0Cited by

2References

19Claims

0Family size

Assignee

Tobii AB · SE

Inventors

Mikael Rosell · Danderyd, SE
Simon Johansson · Danderyd, SE
Johannes Kron · Danderyd, SE

Key dates

Filing date	Dec 31, 2019
Grant date	Oct 26, 2021
Priority date	—
Expiry date	Dec 31, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG06V40/193
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An eye-tracking system for performing a pupil-detection process, the eye-tracking system configured to: receive image-data comprising a plurality of pixel-arrays, each pixel-array having a plurality of pixel locations and an intensity-value at each of the pixel locations; for each pixel location of a region of pixel locations: define an intensity-value-set comprising the intensity-values at the pixel location for two or more of the plurality of pixel-arrays; and determine the pixel location to be an excluded pixel location if the intensity-value-set does not satisfy an intensity condition; and exclude the excluded pixel locations from the pupil-detection process.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.