Fingerprint sensing and enrollment
First Claim
1. A method for constructing a unified image of biometric data, comprising:
- receiving a sequence of images of biometric data that is captured over a given period of time by a biometric recognition sensor;
as the images in the sequence are received, repeatedly selecting a sliding window of images of biometric data from the sequence of images of biometric data, wherein each sliding window includes a given number of images in the sequence of images and at least one image that is not included in an immediately preceding sliding window;
selecting one or more images of biometric data to be included in the unified image of biometric data from at least one of the sliding windows; and
constructing the unified image of biometric data using the selected one or more images of biometric data.
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Accused Products
Abstract
A sequence of biometric data images is received, such as, for example, a sequence of fingerprint images, and a set of biometric data images is selected from the sequence of images. The set of images can include one or more segments of at least one image in the sequence of images. One or more portions of at least one image of biometric data in the set of images can be selected to be included in the unified image of biometric data. The unified image of biometric data can be constructed using the one or more portions of the at least one image of biometric data. If the unified image of biometric data is not complete, a user can be prompted for one or more additional images of biometric data.
99 Citations
24 Claims
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1. A method for constructing a unified image of biometric data, comprising:
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receiving a sequence of images of biometric data that is captured over a given period of time by a biometric recognition sensor; as the images in the sequence are received, repeatedly selecting a sliding window of images of biometric data from the sequence of images of biometric data, wherein each sliding window includes a given number of images in the sequence of images and at least one image that is not included in an immediately preceding sliding window; selecting one or more images of biometric data to be included in the unified image of biometric data from at least one of the sliding windows; and constructing the unified image of biometric data using the selected one or more images of biometric data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 23, 24)
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17. A method for constructing and using a unified image of biometric data, comprising:
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receiving a sequence of images of biometric data; repeatedly selecting a sliding window of images of biometric data from the sequence of images of biometric data, wherein each sliding window includes a given number of images in the sequence of images and at least one image that is not included in an immediately preceding sliding window; selecting one or more images of biometric data to be included in the unified image of biometric data from at least one sliding window; constructing the unified image of biometric data using the one or more selected images of biometric data; enrolling the unified image of biometric data, wherein the enrollment includes associating the unified image of biometric data with a user; and recognizing and authenticating a subsequently received image of biometric data by determining if the image of biometric data matches at least a portion of the unified image of biometric data. - View Dependent Claims (18, 19, 20, 21)
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22. A system, comprising:
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a biometric recognition sensor including a sensing element adapted to receive a sequence of images of biometric data; a processor connected to the sensing element and adapted to; repeatedly select a sliding window of images of biometric data from the sequence of images of biometric data as the images in the sequence are received, wherein each sliding window includes a given number of images in the sequence of images and at least one image that is not included in an immediately preceding sliding window; select one or more images of biometric data to be included in a unified image of biometric data from at least one sliding window; construct a unified image of biometric data using at least one selected image of biometric data; and a display connected to the processor for displaying to a user a prompt for collecting one or more additional images of biometric data.
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Specification