Eye gaze tracking method and apparatus and computer-readable recording medium
First Claim
1. A method of tracking an eye gaze, the method comprising:
- detecting a facial feature in a captured image;
detecting an iris of a left eye and an iris of a right eye;
determining weights by estimating a quality of the detected iris of the left eye and a quality of the detected iris of the right eye;
detecting iris centers of the left eye and the right eye in the captured image based on the detected iris of the left eye and the detected iris of the right eye; and
acquiring a gaze point based on the facial feature, the detected iris centers, and the weights.
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Abstract
A method and an apparatus of tracking an eye gaze to determine where a gaze point of a user is located on a display unit of a device, based on a facial pose and a position of an iris center, are provided. The method includes detecting a facial feature in a captured initial image, three-dimensionally modeling the detected facial feature, tracking the three-dimensionally modeled facial feature in consecutively captured images, detecting an iris center in the consecutively captured images, acquiring an eye gaze vector based on the tracked three-dimensionally modeled facial feature and the detected iris center, and acquiring a gaze point on a display unit based on the eye gaze vector.
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Citations
29 Claims
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1. A method of tracking an eye gaze, the method comprising:
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detecting a facial feature in a captured image; detecting an iris of a left eye and an iris of a right eye; determining weights by estimating a quality of the detected iris of the left eye and a quality of the detected iris of the right eye; detecting iris centers of the left eye and the right eye in the captured image based on the detected iris of the left eye and the detected iris of the right eye; and acquiring a gaze point based on the facial feature, the detected iris centers, and the weights. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An apparatus for tracking an eye gaze, the apparatus comprising:
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a camera configured to capture an image; and a processor configured to; detect a facial feature in the captured image, detect an iris of a left eye and an iris of a right eye, determine weights by estimating a quality of the detected iris of the left eye and a quality of the detected iris of the right eye, detect iris centers of the left eye and the right eye in the captured image, based on the detected iris of the left eye and the detected iris of the right eye, and acquire a gaze point based on the facial feature, the detected iris centers, and the weights. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 26, 27, 28, 29)
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25. The apparatus of claimer 23, wherein the processor is further configured to:
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determine an eye gaze vector of the left eye and an eye gaze vector of the right eye based on the tracked three-dimensionally modeled facial feature and the detected iris centers, apply the weights based on the estimated quality of the detected iris of the left eye and the estimated quality of the detected iris of the right eye to the eye gaze vector of the left eye and the eye gaze vector of the right eye, respectively, and acquire the gaze point on a display unit based on the weights applied to the eye gaze vector of the left eye and the weights applied to the eye gaze vector of the right eye.
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Specification