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 at least one set with identifying characteristics of the patterned object in a candidate set, wherein the matching includes a loose matching stage and a strict matching stage; and
adjusting a confidence value of each identifying characteristic in the at least one set based on results of the matching, wherein the confidence value is increased by a first value if a match occurs in the loose matching stage and by a second value larger than the first value if a match occurs in the strict matching stage.
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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.
115 Citations
27 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 at least one set with identifying characteristics of the patterned object in a candidate set, wherein the matching includes a loose matching stage and a strict matching stage; and adjusting a confidence value of each identifying characteristic in the at least one set based on results of the matching, wherein the confidence value is increased by a first value if a match occurs in the loose matching stage and by a second value larger than the first value if a match occurs in the strict matching stage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 26, 27)
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10. 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 of a confidence value to an associated identifying characteristic; and an assignor configured to assign a confidence value to each of the identifying characteristics generated from a loose match and strict match of the identifying characteristics in a template to identifying characteristics of the patterned object in at least one other template, wherein the confidence value of a characteristic is based on whether the loose match and the strict match are made between corresponding ones of the identifying characteristics in the patterned object and the template. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. 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 of a confidence value to an associated identifying characteristic; and means for assigning a confidence value to each of the identifying characteristics generated from a loose match and strict match of the identifying characteristics in a template to identifying characteristics of the patterned object in at least one other template, wherein the confidence value of a characteristic is based on whether the loose match and the strict match are made between corresponding ones of the identifying characteristics in the patterned object and the template.
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Specification