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:
Jul. 13, 2021
Filed:
Dec. 11, 2019
Applicant:
Tobii Ab, Danderyd, SE;
Inventor:
Erik Lindén, Danderyd, SE;
Assignee:
Tobii AB, Danderyd, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/13 (2006.01); G06F 3/01 (2006.01); G06T 7/73 (2017.01); G06T 7/246 (2017.01); G06F 17/16 (2006.01);
U.S. Cl.
CPC ...
G06F 3/013 (2013.01); G06F 3/017 (2013.01); G06F 17/16 (2013.01); G06T 7/251 (2017.01); G06T 7/75 (2017.01);
Abstract
The present invention relates to a method for establishing the position of an object in relation to a camera in order to enable gaze tracking with a user watching the object, where the user is in view of the camera. The method comprises the steps of showing a known pattern, consisting of a set of stimulus points (s, s, . . . , s), on the object, detecting gaze rays (g, g, . . . , g) from an eye of the user as the user looks at the stimulus points (s, s, . . . , s), and finding, by means of an optimizer, a position and orientation of the object in relation to the camera such that the gaze rays (g, g, . . . , g) approaches the stimulus points (s, s, . . . , s).