SYSTEMS AND METHODS FOR CAPTURING ARTIFACT FREE IMAGES
First Claim
1. A method of acquiring artifact-free biometric images of an eye in relative motion with a sensor, and in the presence of partially-reflective eyewear, comprising:
- (a) acquiring, by a first sensor, a first image of an eye while the eye is illuminated by a first illuminator, the first image including a region of interest, the first sensor disposed at a fixed displacement from the first illuminator and a second sensor;
(b) acquiring, by the second sensor within a predetermined period of time from the acquisition of the first image, a second image of the eye, the second image including the region of interest; and
(c) determining if at least one of the first and second images include artifacts arising from one or both of the first illuminator and eyewear, within the region of interest.
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Accused Products
Abstract
The present disclosure is directed towards methods and systems for capturing artifact-free biometric images of an eye. The eye may be in motion and in the presence of partially-reflective eyewear. The method may include acquiring, by a first sensor, a first image of an eye while the eye is illuminated by a first illuminator. The first image may include a region of interest. The first sensor may be disposed at a fixed displacement from the first illuminator and a second sensor. The second sensor may acquire, within a predetermined period of time from the acquisition of the first image, a second image of the eye. The second image may include the region of interest. An image processor may determine if at least one of the first and second images include artifacts arising from one or both of the first illuminator and eyewear, within the region of interest.
72 Citations
25 Claims
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1. A method of acquiring artifact-free biometric images of an eye in relative motion with a sensor, and in the presence of partially-reflective eyewear, comprising:
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(a) acquiring, by a first sensor, a first image of an eye while the eye is illuminated by a first illuminator, the first image including a region of interest, the first sensor disposed at a fixed displacement from the first illuminator and a second sensor; (b) acquiring, by the second sensor within a predetermined period of time from the acquisition of the first image, a second image of the eye, the second image including the region of interest; and (c) determining if at least one of the first and second images include artifacts arising from one or both of the first illuminator and eyewear, within the region of interest. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system of acquiring artifact-free biometric images of an eye in relative motion with a sensor, and in the presence of partially-reflective eyewear, the system comprising:
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a first illuminator; a first sensor and a second sensor, the first sensor acquiring a first image of an eye while illuminated by a first illuminator, the first image including a region of interest, the first sensor disposed at a fixed displacement from the first illuminator and a second sensor, the second sensor acquiring a second image of the eye within a predetermined period of time from the acquisition of the first image, the second image including the region of interest; and an image processor determining if at least one of the first and second images include artifacts arising from one or both of the first illuminator and eyewear, within the region of interest. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method of acquiring artifact-free biometric images of an eye in relative motion with a sensor, and in the presence of partially-reflective eyewear, comprising:
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(a) acquiring, by a first sensor, a first image of an eye while the eye is in a first position relative to the sensor and illuminated by a first illuminator, the first image including a region of interest, the first sensor disposed at a fixed displacement from the first illuminator; (b) acquiring, by the first sensor within a predetermined time from the acquisition of the first image, a second image of the eye while the eye is in a second position and illuminated by the first illuminator, the second image including the region of interest; (c) determining if at least one of the first and second images include artifacts arising from one or both of the first illuminator and eyewear, within the region of interest; and (d) selecting, based on the determination, at least a portion of the region of interest, from one or both of the first and second images, for use in biometric verification.
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Specification