Multimodal biometric analysis
First Claim
1. A biometric system that uses readings from a plurality of biometrics of a user, comprising:
- a first biometric reader delivering a first measured biometric;
a first biometric matching engine, wherein;
the first biometric matching engine processes the first measured biometric to produce a first value, the first value is indicative of a likelihood that the first measured biometric matches a first stored biometric reading, and a plurality of first values are gathered prior to the first value;
a second biometric reader delivering a second measured biometric;
a second biometric matching engine, wherein;
the second biometric matching engine processes the second measured biometric to produce a second value, the second value is indicative of a likelihood that the second measured biometric matches a second stored biometric reading, a plurality of second values are gathered prior to the second value, and at least one of;
the first and second biometric readers measure a different biometric, or the first and second biometric matching engines use a different algorithm; and
a processor that;
normalizes the first value according to the plurality of first values, normalizes the second value according to the plurality of second values, and determines if the user is matches to a person using the normalized first and second values.
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Abstract
A biometric system that uses readings from a plurality of biometrics of a user is disclosed. The biometric system includes a first and second biometric readers, a first and second biometric matching engines and a processor. The first biometric reader producing a first measured biometric that is processed by the first biometric matching engine to deliver a first value, which is indicative of a likelihood that the first measured biometric matches a first stored biometric reading. A plurality of first values are gathered prior to the first value. The second biometric reader delivers a second measured biometric for processing by the second biometric matching engine to produce a second value, which is indicative of a likelihood that the second measured biometric matches a second stored biometric reading. A plurality of second values are gathered prior to the second value. The first and second biometric readers measure a different biometric, or the first and second biometric matching engines use a different algorithm. The processor normalizes the first value according to the plurality of first values, normalizes the second value according to the plurality of second values, and determines if the user matches a person using the normalized first and second values.
86 Citations
20 Claims
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1. A biometric system that uses readings from a plurality of biometrics of a user, comprising:
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a first biometric reader delivering a first measured biometric;
a first biometric matching engine, wherein;
the first biometric matching engine processes the first measured biometric to produce a first value, the first value is indicative of a likelihood that the first measured biometric matches a first stored biometric reading, and a plurality of first values are gathered prior to the first value;
a second biometric reader delivering a second measured biometric;
a second biometric matching engine, wherein;
the second biometric matching engine processes the second measured biometric to produce a second value, the second value is indicative of a likelihood that the second measured biometric matches a second stored biometric reading, a plurality of second values are gathered prior to the second value, and at least one of;
the first and second biometric readers measure a different biometric, or the first and second biometric matching engines use a different algorithm; and
a processor that;
normalizes the first value according to the plurality of first values, normalizes the second value according to the plurality of second values, and determines if the user is matches to a person using the normalized first and second values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for increasing accuracy of a biometric matching over time, the method comprising:
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gathering a first plurality of biometrics;
matching a first measured biometric with the first plurality of biometrics to produce a first result, wherein;
the first result is indicative a likelihood that the first measured biometric matches at least one of the first plurality of biometrics, and the first measured biometric is a different type of biometric than the second measured biometric;
gathering a second plurality of biometrics;
matching a second measured biometric with the second plurality of biometrics to produce a second result, wherein;
the first-listed matching step uses a different algorithm from the second-listed matching step, and the second result is indicative a likelihood that the second measured biometric matches at least one of the second plurality of biometrics;
combining the first and second results in a normalizing process;
matching a user to a person using a result from the normalizing process. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A biometric system that uses readings from a plurality of biometrics of a user to authenticate the user, comprising:
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a first biometric reader producing a first measured biometric from the user;
a first biometric matching engine, wherein;
the first biometric matching engine processes the first measured biometric to produce a first value, and the first value is indicative of a likelihood that the first measured biometric matches a first stored biometric reading;
a second biometric reader producing a second measured biometric from the user;
a second biometric matching engine, wherein;
the second biometric matching engine processes the second measured biometric to produce a second value, the second value is indicative of a likelihood that the second measured biometric matches a second stored biometric reading, and at least one of;
the first and second biometric readers measure a different biometric, or the first and second biometric matching engines use a different algorithm; and
a processor that;
adjusts the first and second values to use a common scale, and determines if the user is authentic using the adjusted first and second values that use the common scale. - View Dependent Claims (18, 19, 20)
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Specification