Systems and methods for biometric image alignment
First Claim
1. A method for biometric image alignment, comprising:
- receiving an input image of a biometric object;
identifying a plurality of sets of candidate transformations, wherein each set of candidate transformations included in the plurality of sets of candidate transformations aligns the input image to a different enrollment image included in a plurality of enrollment images;
grouping the plurality of sets of candidate transformations into a combined set of candidate transformations;
selecting a subset of candidate transformations from the combined set of candidate transformations; and
identifying a first transformation based on the selected subset of candidate transformations, wherein the first transformation aligns the input image to a first enrollment image included in the plurality of enrollment images.
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Abstract
Systems and methods for aligning images are disclosed. A method includes receiving an input image of a biometric object; identifying a plurality of sets of candidate transformations, wherein each set of candidate transformations included in the plurality of sets of candidate transformations aligns the input image to a different enrollment image included in a plurality of enrollment images; grouping the plurality of sets of candidate transformations into a combined set of candidate transformations; selecting a subset of candidate transformations from the combined set of candidate transformations; and, identifying a first transformation based on the selected subset of candidate transformations, wherein the first transformation aligns the input image to a first enrollment image included in the plurality of enrollment images.
73 Citations
29 Claims
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1. A method for biometric image alignment, comprising:
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receiving an input image of a biometric object; identifying a plurality of sets of candidate transformations, wherein each set of candidate transformations included in the plurality of sets of candidate transformations aligns the input image to a different enrollment image included in a plurality of enrollment images; grouping the plurality of sets of candidate transformations into a combined set of candidate transformations; selecting a subset of candidate transformations from the combined set of candidate transformations; and identifying a first transformation based on the selected subset of candidate transformations, wherein the first transformation aligns the input image to a first enrollment image included in the plurality of enrollment images. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A device, comprising:
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a biometric sensor configured to capture an input image of a biometric object; and a processing system configured to; receive the input image of the biometric object; identify a plurality of sets of candidate transformations, wherein each set of candidate transformations included in the plurality of sets of candidate transformations aligns the input image to a different enrollment image included in a plurality of enrollment images; group the plurality of sets of candidate transformations into a combined set of candidate transformations; select a subset of candidate transformations from the combined set of candidate transformations; and identify a first transformation based on the selected subset of candidate transformations, wherein the first transformation aligns the input image to a first enrollment image included in the plurality of enrollment images. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A non-transitory computer-readable storage medium storing instructions that, when executed by a processor, cause a computing system to perform biometric image alignment, by performing the steps of:
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receiving an input image of a biometric object; identifying a plurality of sets of candidate transformations, wherein each set of candidate transformations included in the plurality of sets of candidate transformations aligns the input image to a different enrollment image included in a plurality of enrollment images; grouping the plurality of sets of candidate transformations into a combined set of candidate transformations; selecting a subset of candidate transformations from the combined set of candidate transformations; and identifying a first transformation based on the selected subset of candidate transformations, wherein the first transformation aligns the input image to a first enrollment image included in the plurality of enrollment images.
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23. A device, comprising:
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a biometric sensor configured to capture an input image of a biometric object; and a processor configured to; receive the input image of the biometric object; identify a plurality of sets of candidate transformations, wherein each set of candidate transformations included in the plurality of sets of candidate transformations aligns the input image to a different enrollment image included in a plurality of enrollment images; group the plurality of sets of candidate transformations into a combined set of candidate transformations; select a subset of candidate transformations from the combined set of candidate transformations; and identify a first transformation based on the selected subset of candidate transformations, wherein the first transformation aligns the input image to a first enrollment image included in the plurality of enrollment images. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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Specification