Apparatus and method for determining sequencing of fingers in images to a two-finger scanner of fingerprint images
DCFirst Claim
1. An apparatus for capturing images of fingerprints comprising:
- a platen sized for at most two fingers of a hand of a subject at one time;
an imaging system for capturing images of different finger pairs of each hand of a subject when presented to said platen; and
at least one processor which is configured for initiating a fingerprint capture session with a subject by prompting of the subject for a presenting of a correct sequence of specific ones of fingers within a specified finger pair, onto said platen, and for scanning an image of said specified finger pair, and for determining in said image, a difference of at least one characteristic of said fingers in the image, and configured for verifying if said presenting of said finger pair is correct in accordance with said prompting, andconfigured for notifying the subject of an error with respect to said presenting, and for repeating the initiation of a fingerprint capture session, if a sequence of specific ones of fingers of said presenting of said specified finger pair is not verified to be correct.
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Abstract
An apparatus (10) for capturing fingerprint images having a platen (21) sized for at most two fingers of a hand, and an imaging system for enabling capture of fingerprint images presented to the platen (21), in which images of two different finger pairs are captured for each hand of a subject when presented to the platen. At least one processor (27) which determines for each of the images captured a difference in height of at least one characteristic of the fingers in the image. Using said difference in height of the fingers in each of the images, the processor (27) verifies that the correct sequence of specific ones of finger pair was provided by the subject to the platen when images were captured. Fingerprint images acquired from the images may be stored in an electronic record along with thumb prints and subject information, and optionally the height differences for the images.
31 Citations
25 Claims
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1. An apparatus for capturing images of fingerprints comprising:
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a platen sized for at most two fingers of a hand of a subject at one time; an imaging system for capturing images of different finger pairs of each hand of a subject when presented to said platen; and at least one processor which is configured for initiating a fingerprint capture session with a subject by prompting of the subject for a presenting of a correct sequence of specific ones of fingers within a specified finger pair, onto said platen, and for scanning an image of said specified finger pair, and for determining in said image, a difference of at least one characteristic of said fingers in the image, and configured for verifying if said presenting of said finger pair is correct in accordance with said prompting, and configured for notifying the subject of an error with respect to said presenting, and for repeating the initiation of a fingerprint capture session, if a sequence of specific ones of fingers of said presenting of said specified finger pair is not verified to be correct. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system for capturing fingerprint images comprising:
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means for prompting for presenting of specific ones of fingers and enabling capture of fingerprint images presented to a platen sized for at most two fingers of a hand, in which two images of two different finger pairs are captured for each hand of a subject; and means for processing images captured to determine one or more characteristic of fingers in the images as to whether the fingers captured in each of the images correspond to specific ones of the fingers, in accordance with said prompting, when presented to the platen. - View Dependent Claims (19)
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20. A method for capturing images of fingerprints upon a platen sized for at most two fingers of a hand of a subject comprising the steps of:
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prompting a subject for presenting of specific ones of fingers of finger pairs; and capturing images of two different finger pairs of each hand of a subject when presented to a platen; and determining in each of the images a difference of at least one characteristic of fingers in the image; verifying that specific ones of finger pairs was presented by the subject to the platen, in accordance with said prompting, after one or more said images were captured using said difference determined for said one or more said images. - View Dependent Claims (21)
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22. A method for capturing fingerprint images of a subject on a finger print scanner having a platen comprising:
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(a) prompting a subject to place one specific pair of fingers from one hand on a platen of a finger printer scanner, (b) capturing an image of fingers presented on the platen after said prompting step is carried out; (c) determining a difference of at least one characteristic of the fingers in the image; and (d) determining whether the difference is consistent with a presentation of the two specific pair of fingers prompted for. - View Dependent Claims (23, 24, 25)
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Specification