System for and method of assigning confidence values to fingerprint minutiae points
First Claim
1. A method of organizing identifying characteristics of a patterned object used to verify the patterned object, the method comprising:
- matching identifying characteristics of the patterned object in one more sets withidentifying characteristics of the patterned object in a candidate set; and
adjusting a confidence value of each identifying characteristic in the one or more sets based on results of the matching.
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Accused Products
Abstract
A method in accordance with the present invention is used to organize minutiae and other identifying characteristics of a patterned object to verify a user. In one embodiment, the method includes matching minutiae points of the patterned object in one more sets with minutiae points of the patterned object in a candidate set. The method also includes adjusting a confidence value of each minutia point in the one or more sets based on results of the matching. The method also includes organizing the one or more sets based on the confidence values, such as by ordering the minutiae in the one or more sets based on the confidence values, or by deleting from the one or more sets any identifying characteristics with a confidence value below a threshold.
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Citations
46 Claims
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1. A method of organizing identifying characteristics of a patterned object used to verify the patterned object, the method comprising:
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matching identifying characteristics of the patterned object in one more sets with identifying characteristics of the patterned object in a candidate set; and adjusting a confidence value of each identifying characteristic in the one or more sets based on results of the matching. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of verifying a patterned object comprising:
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generating a template of candidate identifying characteristics from an image of the patterned object; matching the candidate identifying characteristics to stored identifying characteristics of the patterned object in one or more other templates, wherein the matches are performed based on confidence values associated with each of the stored identifying characteristics; and verifying the patterned object based on a result of the matches. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of generating templates corresponding to image data comprising:
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performing one or more pairwise matches of two or more templates each containing data corresponding to identifying characteristics; and assigning confidence values to each identifying characteristics in each of the two or more templates based on matches between the identifying characteristics. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. An apparatus for assigning confidence values to identifying characteristics of a patterned object comprising:
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a template builder configured to build templates of identifying characteristics, wherein each template contains a record mapping a confidence value to an associated identifying characteristic; and an assignor configured to assign confidence values to each of the identifying characteristics generated from a match of the identifying characteristics in a template to identifying characteristics of the patterned object in one or more other templates. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. An apparatus for assigning confidence values to identifying characteristics of a patterned object comprising:
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means for building templates of identifying characteristics, wherein each template contains a record mapping a confidence value to an associated identifying characteristic; and means for assigning confidence values to each of the identifying characteristics generated from a match of the identifying characteristics in a template to identifying characteristics of the patterned object in one or more other templates.
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44. An apparatus for matching minutiae of a patterned object comprising:
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a finger sensor for reading an image of the patterned object; a template builder configured to build templates of minutiae from the image; a storage containing a library of one or more templates, wherein each of the one or more templates maps confidence values to minutiae from one image of the patterned object, and further wherein the minutiae in the one or more templates have an organization based on the confidence values; and a matcher configured to match any pair of templates based on the organization, to thereby verify the patterned object. - View Dependent Claims (45)
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46. A computer-readable medium having stored thereon a data structure comprising a plurality of records, wherein each record comprises a first field containing data representing a minutia point and a second field containing data representing a confidence value for the minutia point.
Specification