Method and system of accounting for positional variability of biometric features
First Claim
1. A method of text-based biometric authentication comprising:
- generating a biometric image from biometric data with a server system, the biometric image including biometric features, the server system storing data documents corresponding to different individuals, each data document including enrollment biometric words;
superimposing a positional relationship medium on the biometric image, the positional relationship medium including cells, each cell being described with a word derived from the positional relationship medium, adjacent cells include a common border;
establishing an overlapping border region between respective adjacent cells;
determining a biometric feature included in the biometric features is positioned in an overlapping border region;
deriving a word for each adjacent cell associated with the overlapping border region; and
comparing the derived words against the enrollment biometric words in each data document, and identifying a data document as a matching data document when a derived word matches an enrollment biometric word.
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Accused Products
Abstract
A method of text-based authentication that accounts for positional variability of biometric features between captured biometric data samples includes capturing biometric data for a desired biometric type from an individual, and processing the captured biometric data to generate a biometric image and a biometric feature template. A selected conversion algorithm is executed by superimposing a positional relationship medium on the biometric image. The positional relationship medium includes a plurality of cells textually describable with words derivable from the positional relationship medium. The positions of biometric features are permitted to vary in overlapping border regions within the positional relationship medium. The method also includes identifying the position of at least one biometric feature within the overlapping border regions and generating a plurality of words for the at least one biometric feature.
109 Citations
19 Claims
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1. A method of text-based biometric authentication comprising:
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generating a biometric image from biometric data with a server system, the biometric image including biometric features, the server system storing data documents corresponding to different individuals, each data document including enrollment biometric words; superimposing a positional relationship medium on the biometric image, the positional relationship medium including cells, each cell being described with a word derived from the positional relationship medium, adjacent cells include a common border; establishing an overlapping border region between respective adjacent cells; determining a biometric feature included in the biometric features is positioned in an overlapping border region; deriving a word for each adjacent cell associated with the overlapping border region; and comparing the derived words against the enrollment biometric words in each data document, and identifying a data document as a matching data document when a derived word matches an enrollment biometric word. - View Dependent Claims (2, 3, 4, 5, 6, 7, 17)
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8. A system for text-based biometric authentication comprising:
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a computer configured as a server, said server including at least a data base and being configured to store within said database at least a data document gallery comprising data documents, each data document corresponding to a different individual and including enrollment biometric words; and at least one client system operationally coupled to said server, said client system configured to at least capture biometric data from an individual, said server being further configured to generate a biometric image from biometric data, the biometric image including biometric features, superimpose a positional relationship medium on the biometric image, the positional relationship medium including cells, each cell being described with a word derived from the positional relationship medium, adjacent cells include a common border, establish an overlapping border region between respective adjacent cells, determine a biometric feature included in the biometric features is positioned in an overlapping border region, derive a word for each adjacent cell associated with the overlapping border region in which the biometric feature is positioned, and compare the derived words against the enrollment biometric words in each data document, and identify a data document as a matching data document when a derived word matches an enrollment biometric word. - View Dependent Claims (9, 10, 11, 18)
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12. A method of text-based biometric authentication comprising:
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generating cells, each cell including at least one border, and positioning cells adjacent each other to define a border between each pair of adjacent cells; when a biometric feature included in a biometric template is positioned proximate a common border between adjacent cells determining that the biometric feature is located in each cell adjacent the common border with a processor, the processor operable to communicate with a memory that stores data documents corresponding to different individuals, each data document including enrollment biometric words; deriving a word for each cell adjacent the common border; and comparing the derived words against the enrollment biometric words in each data document, and identifying a data document as a matching data document when a derived word matches an enrollment biometric word. - View Dependent Claims (13, 14, 15, 16, 19)
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Specification