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US 8,408,706 B2Granted
3D gaze tracker
AssigneeMicrosoft Corporation
InventorGiora Yahav
Life of this patent
Estimating the term…
Abstract
An embodiment of the invention provides a gaze tracker for determining a gaze vector for a person, which comprises a 3D camera that and a picture camera that image the person and a controller that processes images acquired by the cameras to determine a gaze direction and origin for the gaze vector.
Claims20
A gaze tracker for determining a gaze vector having a direction and origin for a person, the gaze tracker comprising:
- a 3D camera that acquires a range image of a person located in a field of view (FOV) of the camera;
- a picture camera that acquires a picture of the person in the FOV of the 3D camera;
- and
- a controller that processes the range image and the picture to determine spatial coordinates for features of the person's head and an eye of the person, and determines a gaze direction and origin for a gaze vector of the eye.
1 more element
A method of determining a gaze direction of a person, the method comprising:
- acquiring a range image of a person that provides distances to the person's features;
- acquiring a contrast image of the person;
- and
- processing the range image and the contrast image to provide a gaze vector for the person that defines a direction along which the person is looking.
1 more element
Dependencies are inferred from the claim text.