Method and apparatus for processing biometric images
First Claim
Patent Images
1. A method for processing an image of a biometric comprising:
- applying a gradient edge detection process, using a gradient edge detector, to detect structural features in a biometric based on data representing an image of at least a portion of the biometric; and
forming a model, using a modeler, of the image as a function of the detected structural features wherein forming a model of the image includes modeling at least one region of the image of the at least one portion of the biometric.
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Abstract
A method and apparatus for applying gradient edge detection to detect features in a biometric, such as a fingerprint, based on data representing an image of at least a portion of the biometric. The image is modeled as a function of the features. Data representing an image of the biometric is acquired, and features of the biometric are modeled for at least two resolutions. The method and apparatus improves analysis of both high-resolution images of biometrics of friction ridge containing skin that include resolved pores and lower resolution images of biometrics without resolved pores.
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Citations
182 Claims
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1. A method for processing an image of a biometric comprising:
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applying a gradient edge detection process, using a gradient edge detector, to detect structural features in a biometric based on data representing an image of at least a portion of the biometric; and forming a model, using a modeler, of the image as a function of the detected structural features wherein forming a model of the image includes modeling at least one region of the image of the at least one portion of the biometric. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80)
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81. An apparatus for processing an image of a biometric, comprising:
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a gradient edge detector configured to detect structural features in a biometric based on data representing an image of at least a portion of the biometric; and a modeler configured to form a model of the image as a function of the detected structural features wherein the modeler is configured to model at least one region of the image of the at least one portion of the biometric. - View Dependent Claims (82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160)
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161. An apparatus for processing an image of a biometric, comprising:
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gradient edge detection means for detecting features in a biometric based on data representing an image of at least a portion of the biometric; means for modeling the image as a function of the features; and means for displaying the image to a user with an overlay of the indications of the biometric features of the image.
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162. A method for processing an image of a biometric, comprising:
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acquiring data representing features of an image of at least a portion of a biometric using a data acquisition unit; and forming a model of the image using the features of the biometric for at least two resolutions using a modeler wherein the resolutions include an outline model at a low resolution, a details model at a high resolution, and a fine details model used to locate and define particular biometric features more accurately than at a low or high resolution. - View Dependent Claims (163, 164, 165, 166, 167, 168, 169, 170, 171)
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172. An apparatus for processing an image of a biometric, comprising:
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a data acquisition unit configured to acquire data representing an image of at least a portion of a biometric; and a modeler configured to form a model of features of the biometric for at least two resolutions wherein the resolutions include an outline model at a low resolution, a details model at a high resolution, and a fine details model configured to locate and define particular biometric features more accurately than at a low or high resolution. - View Dependent Claims (173, 174, 175, 176, 177, 178, 179, 180, 181)
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182. An apparatus for processing an image of a biometric, comprising:
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means for acquiring data representing an image of at least a portion of a biometric; and means for forming a model of features of the biometric for at least two resolutions wherein the resolutions include an outline model at a low resolution, a details model at a high resolution, and a fine details model configured to locate and define particular biometric features more accurately than at a low or high resolution.
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Specification