SYSTEM AND METHOD FOR EXTRACTING TWO-DIMENSIONAL FINGERPRINTS FROM HIGH RESOLUTION THREE-DIMENSIONAL SURFACE DATA OBTAINED FROM CONTACTLESS, STAND-OFF SENSORS
First Claim
1. A system for extracting two-dimensional fingerprints from high resolution three-dimensional surface data obtained from contactless, stand-off sensors, comprising:
- a three-dimensional sensor that generates three-dimensional surface data of a hand and one or more fingers of a subject;
a processor, coupled to the three-dimensional sensor, and a memory associated with the processor, wherein the processor executes instructions stored in the memory to extract two-dimensional fingerprints from high resolution three-dimensional surface data by;
collecting three-dimensional surface data of the subject hand and one or more subject fingers generated by the three-dimensional sensor;
estimating a hand pose of the subject based on the collected three-dimensional surface data;
based on the estimated hand pose, extracting fingerprint information from the collected three-dimensional surface data;
unrolling one or more two-dimensional fingerprints from the extracted fingerprint information;
determining a fingerprint quality score for each of the one or more two-dimensional fingerprints; and
for each of the one or more two-dimensional fingerprints that have a sufficiently high determined fingerprint quality score, storing the two-dimensional fingerprint.
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Accused Products
Abstract
Disclosed herein are systems and methods for extracting two-dimensional fingerprints from high resolution three-dimensional surface data obtained from contactless, stand-off sensors. The system may include a three-dimensional sensor that generates three-dimensional surface data of a hand and one or more fingers of a subject and a processor, coupled to the three-dimensional sensor, and a memory associated with the processor, in which the processor executes instructions stored in the memory collect three-dimensional surface data of the subject hand and one or more subject fingers generated by the three-dimensional sensor, estimate a hand pose of the subject based on the collected three-dimensional surface data, unroll one or more two-dimensional fingerprints from the extracted fingerprint information, determine a fingerprint quality score for each of the one or more two-dimensional fingerprints and for each of the one or more two-dimensional fingerprints that have a sufficiently high determined fingerprint quality score, store the two-dimensional fingerprint.
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Citations
20 Claims
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1. A system for extracting two-dimensional fingerprints from high resolution three-dimensional surface data obtained from contactless, stand-off sensors, comprising:
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a three-dimensional sensor that generates three-dimensional surface data of a hand and one or more fingers of a subject; a processor, coupled to the three-dimensional sensor, and a memory associated with the processor, wherein the processor executes instructions stored in the memory to extract two-dimensional fingerprints from high resolution three-dimensional surface data by; collecting three-dimensional surface data of the subject hand and one or more subject fingers generated by the three-dimensional sensor; estimating a hand pose of the subject based on the collected three-dimensional surface data; based on the estimated hand pose, extracting fingerprint information from the collected three-dimensional surface data; unrolling one or more two-dimensional fingerprints from the extracted fingerprint information; determining a fingerprint quality score for each of the one or more two-dimensional fingerprints; and for each of the one or more two-dimensional fingerprints that have a sufficiently high determined fingerprint quality score, storing the two-dimensional fingerprint. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for extracting two-dimensional fingerprints from high resolution three-dimensional surface data obtained from contactless, stand-off sensors, comprising:
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generating three-dimensional surface data of a hand and one or more fingers of a subject using a three-dimensional sensor; collecting three-dimensional surface data of the subject hand and one or more subject fingers generated by the three-dimensional sensor; estimating a hand pose of the subject based on the collected three-dimensional surface data; based on the estimated hand pose, extracting fingerprint information from the collected three-dimensional surface data; unrolling one or more two-dimensional fingerprints from the extracted fingerprint information; determining a fingerprint quality score for each of the one or more two-dimensional fingerprints; and for each of the one or more two-dimensional fingerprints that have a sufficiently high determined fingerprint quality score, storing the two-dimensional fingerprint. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification