Identification of a person based on ultra-sound scan analyses of hand bone geometry
First Claim
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1. A method for identifying a person based on ultrasound scan analysis of bone geometry of the person, the method comprising the steps of:
- a) scanning a volumetric region of the person using ultrasound;
b) acquiring three-dimensional geometric data of the bone geometry of the volumetric region;
c) comparing the acquired three-dimensional geometric data previously stored geometric data to determine if a match exists.
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Abstract
The invention disclosed provides a method of biometric identification of a person based on ultra-sound scan analyses of hand bones. For the purposes of identification/verification, a three dimensional (3D) ultra-sound scan of an individual'"'"'s hand bones is acquired to compare the scan with those stored in the record carrier that can be placed on the host or a remote computer.
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Citations
24 Claims
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1. A method for identifying a person based on ultrasound scan analysis of bone geometry of the person, the method comprising the steps of:
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a) scanning a volumetric region of the person using ultrasound; b) acquiring three-dimensional geometric data of the bone geometry of the volumetric region; c) comparing the acquired three-dimensional geometric data previously stored geometric data to determine if a match exists. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for identifying a person based on ultrasound scan analysis of bone geometry of a hand of the person, the method comprising the steps of:
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a) scanning the hand of the person using ultrasound; b) acquiring cross-sectional data within a plurality of planes extending through the hand; c) subjecting the cross-sectional data to a noise reduction process and identifying points representing the bone geometry of the hand; d) grouping the points into separate bone entities corresponding to bones in the hand; e) defining a local coordinate system for each bone entity in relation to an absolute coordinate system of the hand; f) transforming the points for each bone entity from the absolute coordinate system to their respective local coordinate systems; g) determining relative locations of the bone entities based on a normalized template; h) transforming the points so as to move the bone entities to their relative locations; and i) comparing the to previously stored geometric data to determine if a match exists. - View Dependent Claims (16, 17, 18)
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19. A method for verifying a person'"'"'s identity based on ultrasound scan analysis of bone geometry of a hand of the person, the method comprising the steps of:
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a) retrieving previously stored geometric data the hand of the person; b) scanning the hand of the person using ultrasound; c) acquiring three-dimensional geometric data of the bone geometry of the hand; d) comparing the acquired three-dimensional geometric data to the previously stored geometric data to determine if a match exists. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification