Signature matching method and apparatus
First Claim
1. A method for signature matching, the method comprising:
- receiving, via one or more processors, a first target profile associated with a first data signal, the first data signal associated with a first target object;
receiving, via the one or more processors, a second target profile associated with a second data signal, the second data signal associated with the first target object or a second target object;
generating, via the one or more processors, a comparison distance utilizing a comparison distance function and based on a comparison of one or more data points associated with the first target profile and one or more data points associated with the second target profile;
determining, via the one or more processors, a signature matching score based on the comparison distance, wherein determining the signature matching score further comprises;
generating a ratio based on the comparison distance,selecting a likelihood ratio based on the ratio determined from the comparison distance, wherein the likelihood ratio associated with a match probability density function and a mis-match probability density function, andwherein the determining the signature matching score based on the comparison distance further comprising determining the signature matching score based on the comparison distance and the selected likelihood ratio.
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Accused Products
Abstract
Described are computer-based methods and apparatuses, including computer program products, for signature matching. In some examples, the method for signature matching includes receiving a first target profile associated with a first data signal, the first data signal associated with a first target object; receiving a second target profile associated with a second data signal, the second data signal associated with the first target object or a second target object; generating a comparison distance utilizing a comparison distance function and based on a comparison of one or more data points associated with the first target profile and one or more data points associated with the second target profile; and determining a signature matching score based on the comparison distance.
54 Citations
18 Claims
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1. A method for signature matching, the method comprising:
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receiving, via one or more processors, a first target profile associated with a first data signal, the first data signal associated with a first target object; receiving, via the one or more processors, a second target profile associated with a second data signal, the second data signal associated with the first target object or a second target object; generating, via the one or more processors, a comparison distance utilizing a comparison distance function and based on a comparison of one or more data points associated with the first target profile and one or more data points associated with the second target profile; determining, via the one or more processors, a signature matching score based on the comparison distance, wherein determining the signature matching score further comprises; generating a ratio based on the comparison distance, selecting a likelihood ratio based on the ratio determined from the comparison distance, wherein the likelihood ratio associated with a match probability density function and a mis-match probability density function, and wherein the determining the signature matching score based on the comparison distance further comprising determining the signature matching score based on the comparison distance and the selected likelihood ratio. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A computer program product for execution by a processor, the computer program product tangibly embodied in an information carrier comprising a machine-readable storage device, the computer program product including instructions being operable to cause a data processing apparatus to:
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receive a first target profile associated with a first data signal, the first data signal associated with a first target object; receive a second target profile associated with a second data signal, the second data signal associated with the first target object or a second target object; generate a comparison distance utilizing a comparison distance function and based on a comparison of one or more data points associated with the first target profile and one or more data points associated with the second target profile; and determine a signature matching score based on the comparison distance, wherein determining the signature matching score further comprises; generating a ratio based on the comparison distance, selecting a likelihood ratio based on the ratio determined from the comparison distance, wherein the likelihood ratio associated with a match probability density function and a mis-match probability density function, wherein the determining the signature matching score based on the comparison distance further comprising determining the signature matching score based on the comparison distance and the selected likelihood ratio.
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10. A system for signature matching, the system comprising:
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a communication module configured to; receive a first target profile associated with a first data signal, the first data signal associated with a first target object, and receive a second target profile associated with a second data signal, the second data signal associated with the first target object or a second target object; a distance comparison module configured to generate a comparison distance utilizing a comparison distance function and based on a comparison of one or more data points associated with the first target profile and one or more data points associated with the second target profile; a signature matching score module configured to determine a signature matching score based on the comparison distance, wherein the signature matching score module is further configured to generate a ratio based on the comparison distance function; and a likelihood ratio generation module configured to select a likelihood ratio based on the ratio determined from the comparison distance, wherein the likelihood ratio associated with a match probability density function and a mis-match probability density function, wherein the signature matching score module further configured to determine the signature matching score based on the comparison distance function and the selected likelihood ratio. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A system for signature matching, the system comprising:
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means for receiving a first target profile associated with a first data signal, the first data signal associated with a first target object; means for receiving a second target profile associated with a second data signal, the second data signal associated with the first target object or a second target object; means for generating a comparison distance utilizing a comparison distance function and based on a comparison of one or more data points associated with the first target profile and one or more data points associated with the second target profile; and means for determining a signature matching score based on the comparison distance, wherein determining the signature matching score further comprises; generating a ratio based on the comparison distance, selecting a likelihood ratio based on the ratio determined from the comparison distance, wherein the likelihood ratio associated with a match probability density function and a mis-match probability density function, and wherein the determining the signature matching score based on the comparison distance further comprising determining the signature matching score based on the comparison distance and the selected likelihood ratio.
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Specification