3D GAZE TRACKER
First Claim
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1. 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.
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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.
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Citations
20 Claims
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1. A gaze tracker for determining a gaze vector having a direction and origin for a person, the gaze tracker comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of determining a gaze direction of a person, the method comprising:
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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.
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Specification