Apparatus and method for the identification of fake fingerprints
First Claim
1. An apparatus for identification of fake fingerprints in a fingerprint scanner having an imaging system capable of capturing an image of multiple fingerprints via a platen, said apparatus comprising:
- a plurality of electrodes disposed in or upon the platen; and
means for detecting liveness of fingers when presented to the platen in accordance with electrical signals provided from said electrodes.
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Accused Products
Abstract
An apparatus for identifying fake fingerprints has electrodes disposed along a platen surface of a fingerprint scanner and whether or not the skin of one or more fingers presented to the surface are real and alive is determined in accordance with analysis of electrical signals received from the electrodes. Electronics of the apparatus determines one or more liveness parameter(s) in accordance with signals received from electrodes. Information from an image of the fingerprint may be used to select which electrode signals to use for liveness detection. To further confirm the presence of a live finger(s), additional liveness parameter(s) of the pulse and/or temperature may also be sensed. The skin may be one of in contact with the platen of the fingerprint scanner, separated from direct contact with the platen'"'"'s electrodes by an insulating layer or a pad, or not in physical contact with the platen or a pad thereupon.
126 Citations
64 Claims
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1. An apparatus for identification of fake fingerprints in a fingerprint scanner having an imaging system capable of capturing an image of multiple fingerprints via a platen, said apparatus comprising:
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a plurality of electrodes disposed in or upon the platen; and means for detecting liveness of fingers when presented to the platen in accordance with electrical signals provided from said electrodes. - 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)
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45. An apparatus for fingerprint image acquisition and liveness detection comprising:
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a platen; an imaging system operative for providing an optical, ultrasonic, or capacitive image of the one or more fingerprints via said platen; electronics for detecting electrical signals from skin in which the one or more fingers imaged are one of non-contact with said electronics or contacts said electronics via material which enhancing imaging of the one or more fingerprints; and one or more processors to analyze the received electrical signals to determine liveness of the skin when presented to the apparatus. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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60. A method for imaging fingerprints comprising the steps of:
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presenting a plurality of fingers to a platen having a plurality of electrodes in or upon said platen; capturing an image of fingerprints of the fingers presented; and detecting liveness of said fingers in accordance with electrical signals provided from said electrodes. - View Dependent Claims (61, 62, 63)
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64. A method for imaging of at least one fingerprint comprising the steps of:
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presenting at least one finger to a platen having a plurality of electrodes in or upon said platen in which said finger is non-contact with said platen; capturing an image of fingerprint of the finger presented; and detecting liveness of said finger in accordance with electrical signals provided from said electrodes.
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Specification