Patent · US Active

Adaptive camera and illuminator eyetracker

US8944600B2 · kind B2 · utility

8Cited by

7References

19Claims

0Family size

Assignee

Tobii Technology AB · SE

Inventors

Peter Blixt · Danderyd, SE
Gunnar Troili · Täby, SE
Anders Kingbäck · Danderyd, SE
John Elvesjö · Stockholm, SE
Mårten Skogö · Danderyd, SE

Key dates

Filing date	Dec 17, 2012
Grant date	Feb 3, 2015
Priority date	—
Expiry date	Feb 28, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06V40/19
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An eye tracker includes at least one illuminator for illuminating an eye, at least two cameras for imaging the eye and a controller. The configuration of the reference illuminator and cameras is such that, at least one camera is coaxial with a reference illuminator and at least one camera is non-coaxial with a reference illuminator. The controller selects one of the cameras to be active to increase an image quality metric and avoid obscuring objects. The eye tracker is operable in a dual-camera mode to improve accuracy.

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