Patent · US Active

Method and system for 3D cornea position estimation

US11308321B2 · kind B2 · utility

1Cited by

0References

16Claims

0Family size

Assignee

Tobii AB · SE

Inventors

David Masko · Danderyd, SE
Magnus Ivarsson · Danderyd, SE
Niklas Ollesson · Danderyd, SE
Anna Redz · Danderyd, SE

Key dates

Filing date	Jun 29, 2020
Grant date	Apr 19, 2022
Priority date	—
Expiry date	Jun 29, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30041
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

There is provided a method, system, and non-transitory computer-readable storage medium for performing three-dimensional, 3D, position estimation for the cornea center of an eye of a user, using a remote eye tracking system, wherein the position estimation is reliable and robust also when the cornea center moves over time in relation to an imaging device associated with the eye tracking system. This is accomplished by generating, using, and optionally also updating, a cornea movement filter, CMF, in the cornea center position estimation.

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