Passive stereo sensing for 3D facial shape biometrics
First Claim
Patent Images
1. A method comprising:
- acquiring image information about a subject'"'"'s face under sunlit conditions;
using said image information to produce a three-dimensional model indicative of the subject'"'"'s face; and
using said three-dimensional model to recognize an identity of said subject'"'"'s face.
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Abstract
A face recognition device which operates in sunlit conditions such as in sunlight, or in indirect sunlight. The device operates without projection of light or other illumination to the face. Stereo information indicative of the face shape is obtained, and used to construct a 3D model. That model is compared to other models of known faces, and used to verify identity based on the comparison.
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Citations
23 Claims
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1. A method comprising:
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acquiring image information about a subject'"'"'s face under sunlit conditions;
using said image information to produce a three-dimensional model indicative of the subject'"'"'s face; and
using said three-dimensional model to recognize an identity of said subject'"'"'s face. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 23)
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11. A system, comprising:
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an image acquisition device, which obtains image information in sunlit conditions, from which a three-dimensional model of a face can be obtained;
a processor, which combines said three-dimensional information to form a three-dimensional model of the face;
and compares said three-dimensional model to other three-dimensional models indicative of other faces. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method comprising:
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first, adjusting settings of an image acquiring device, according to current sunlit lighting conditions, by determining image information about a subject'"'"'s face under said current sunlit conditions, and adjusting said settings based on said image information;
after said adjusting, using said image acquiring device to acquire images of the subject'"'"'s face;
using said images to produce a three-dimensional model indicative of the subject'"'"'s face; and
using said three-dimensional model to recognize an identity associated with said subject'"'"'s face. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification