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:
Oct. 20, 2020
Filed:
Dec. 14, 2018
Tobii Ab, Danderyd, SE;
Andreas Klingström, Danderyd, SE;
Per Fogelström, Danderyd, SE;
Tobii AB, Danderyd, SE;
Abstract
A method and a corresponding eye tracking system for providing an approximate gaze convergence distance of a user in an eye tracking system are disclosed. The method comprises determining calibration data in relation to interpupillary distance between a pupil of a left eye and a pupil of a right eye of a user, determining, based on the determined calibration data, a gaze convergence function providing an approximate gaze convergence distance of the user based on a determined interpupillary distance of the user. The method further comprises receiving, from one or more imaging devices, one or more images of the left eye and the right eye of the user, determining a current interpupillary distance of the user based on the one or more images and determining a current approximate gaze convergence distance based on the current interpupillary distance and the gaze convergence function.