The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 25, 2012
Filed:
Apr. 01, 2010
Peter Blixt, Hagersten, SE;
Anders Hoglund, Balsta, SE;
Gunnar Troili, Taby, SE;
John Elvesjö, Stockholm, SE;
Mårten Skogö, Danderyd, SE;
Peter Blixt, Hagersten, SE;
Anders Hoglund, Balsta, SE;
Gunnar Troili, Taby, SE;
John Elvesjö, Stockholm, SE;
Mårten Skogö, Danderyd, SE;
Tobii Technology AB, Danderyd, SE;
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(s) 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 is adapted to select one of the cameras to be active to maximize an image quality metric and avoid obscuring objects. The eye tracker is operable in a dual-camera mode to improve accuracy. A method and computer-program product for selecting a combination of an active reference illuminator from a number of reference illuminators, and an active camera from a plurality of cameras are provided.