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公开(公告)号：US20170270334A1
公开(公告)日：2017-09-21
申请号：US15444482
申请日：2017-02-28
Applicant: Fingerprint Cards AB
Inventor： Eric Setterberg
CPC classification number: G06K9/0002 , G06K9/00087 , G06K9/00979 , G06K9/52 , G06K9/6277
Abstract: A method for evaluating an individual fingerprint template by using a remote dataset, comprising the steps of capturing a fingerprint representation by a fingerprint reader on a device, extracting significant data from the captured fingerprint representation, thereby creating an individual fingerprint template for the captured fingerprint representation, transmitting the individual fingerprint template from the device to a remote dataset comprising a plurality of fingerprint templates, determining an impostor score distribution for the individual fingerprint template, determining a security threshold for the individual fingerprint template, and transmitting the determined security threshold to the device. The advantage of the invention is that an individual security threshold can be set for a user, which will improve the FAR distribution of a device.
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公开(公告)号：US09471765B1
公开(公告)日：2016-10-18
申请号：US15066219
申请日：2016-03-10
Applicant: Fingerprint Cards AB
Inventor： Eric Setterberg , Morten Jensen , Markus Andersson
CPC classification number: G06K9/00026 , G06K9/00087 , G06K9/00926 , G06K9/6255
Abstract: A method of authenticating a finger against a stored template and expanding the stored template. The method comprises acquiring a present fingerprint image; retrieving a stored enrollment representation, comprising said stored template, and a representation of at least a first previous fingerprint image acquired in connection with a previous failed authentication attempt; and determining if the stored template should be expanded. When it is determined that a first match between a present fingerprint image representation and the stored template fulfills a first template updating requirement and a second match between the present fingerprint image representation and said at least first previous fingerprint image representation fulfills said second template updating requirement, a signal indicating a successful authentication is provided; and a first expanded template is formed based on said stored template, said present fingerprint image and said at least first previous fingerprint image.
Abstract translation: 一种针对存储的模板认证手指并扩展存储的模板的方法。 该方法包括获取当前指纹图像; 检索存储的登记表示，包括所述存储的模板，以及与先前失败的认证尝试相关联地获取的至少第一先前指纹图像的表示; 并确定是否应扩展存储的模板。 当确定当前指纹图像表示与所存储的模板之间的第一匹配满足第一模板更新要求，并且当前指纹图像表示与所述至少第一先前指纹图像表示之间的第二匹配满足所述第二模板更新要求时， 提供表示成功认证的信号; 并且基于所述存储的模板，所述当前指纹图像和所述至少第一先前指纹图像形成第一扩展模板。
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公开(公告)号：US20160260225A1
公开(公告)日：2016-09-08
申请号：US15041656
申请日：2016-02-11
Applicant: Fingerprint Cards AB
Inventor： Hans Thörnblom , Eric Setterberg
CPC classification number: G06K9/00087 , G06F3/03547 , G06F3/0383 , G06F2203/0338 , G06K9/00006
Abstract: The present invention relates to a method of estimating a finger movement direction of a finger, comprising the steps of: a) acquiring a reference fingerprint image; b) acquiring at least one candidate fingerprint image at each acquisition time in a time sequence of acquisition times; c) determining, for each of the acquisition times, a match parameter value for each of a plurality of candidate finger movement directions, the match parameter value being indicative of a correlation between a reference fingerprint image portion and a candidate fingerprint image portion corresponding to displacement in the candidate finger movement direction; d) determining, for each of the candidate finger movement directions, a local extremum match parameter value indicating a maximum correlation for the time sequence of acquisition times; and e) estimating the finger movement based on an evaluation of the determined local extremum match parameters.
Abstract translation: 本发明涉及一种估计手指的手指移动方向的方法，包括以下步骤：a）获取参考指纹图像; b）在获取时间的时间序列中在每个获取时间获取至少一个候选指纹图像; c）为每个获取时间确定针对多个候选手指移动方向中的每一个的匹配参数值，所述匹配参数值指示参考指纹图像部分与对应于位移的候选指纹图像部分之间的相关性 在候选手指移动方向; d）针对每个候选手指移动方向，确定指示获取时间的时间序列的最大相关性的局部极值匹配参数值; 以及e）基于所确定的局部极值匹配参数的评估来估计手指移动。
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公开(公告)号：US20160132711A1
公开(公告)日：2016-05-12
申请号：US14922848
申请日：2015-10-26
Applicant: FINGERPRINT CARDS AB
Inventor： Eric Setterberg , Hamid Sarvé , Kenneth Jonsson
CPC classification number: G06T3/4038 , G06K9/00026 , G06K9/00087 , G06K9/00926 , G06T2200/32
Abstract: The present invention concerns a method, a system, a device for enrolling biometric data of a body part to be used for user authentication, using a two-dimensional sensor. The method comprises capturing, using the two-dimensional sensor, images representing different views of the body part, stitching the images into at least one mosaic, generating at least one constructed image by determining at least one area of interest in the mosaic, the area of interest representing an additional view of the body part, and extracting image data of the area of interest, and enrolling the constructed images in a set of templates to be used for user authentication.
Abstract translation: 本发明涉及一种方法，系统，用于使用二维传感器登记要用于用户认证的身体部位的生物特征数据的装置。 该方法包括使用二维传感器拍摄表示身体部分的不同视图的图像，将图像拼接成至少一个马赛克，通过确定马赛克中的至少一个感兴趣区域来生成至少一个构造图像，区域 感兴趣的代表身体部分的附加视图，以及提取感兴趣区域的图像数据，以及将构造的图像登记在要用于用户认证的一组模板中。
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公开(公告)号：US11144625B2
公开(公告)日：2021-10-12
申请号：US16616856
申请日：2018-05-31
Applicant: FINGERPRINT CARDS AB
Inventor： Eric Setterberg
Abstract: A method of authenticating a user by means of a fingerprint authentication system comprising a finger sensing arrangement, comprising the following steps for each authentication attempt in a sequence of authentication attempts: receiving a touch by a candidate finger probe on the finger sensing arrangement; acquiring a candidate fingerprint image of the candidate finger probe; determining an authentication representation based on the candidate fingerprint image; retrieving a stored enrollment representation of an enrolled fingerprint of the user; determining a match score based on a comparison between the authentication representation and the enrolment representation; determining a liveness score for the authentication attempt; determining a qualification metric for the authentication attempt based on a relation between the liveness score for the authentication attempt and a liveness score for at least one previous authentication attempt; and determining an authentication result for the authentication attempt based on the match score, and the qualification metric.
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Patent Agency Ranking
公开(公告)号：US10984218B2
公开(公告)日：2021-04-20
申请号：US16609650
申请日：2018-04-25
Applicant: FINGERPRINT CARDS AB
Inventor： René Nilsson , Eric Setterberg
Abstract: The invention relates to a method of a fingerprint sensing system arranged in an electronic device of capturing fingerprint data of a user contacting a fingerprint sensor of the fingerprint sensing system, and a fingerprint sensing system performing the method.
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公开(公告)号：US20200184056A1
公开(公告)日：2020-06-11
申请号：US16613326
申请日：2018-05-23
Applicant: FINGERPRINT CARDS AB
Inventor： Hans Thörnblom , Eric Setterberg , Lars Puggaard Bøgild Christensen , Søren Skovgaard Christensen , Anders Ø. Nielsen
Abstract: The present disclosure generally relates to a method for authenticating a user using an electronic device, where the electronic device comprises a fingerprint sensor as well as a first and a second control unit. Preferably, the first control unit comprises a secure element and/or a secure block adapted to provide a secure processing environment. The present disclosure also relates to a corresponding electronic device and to a computer program product.
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公开(公告)号：US09971434B2
公开(公告)日：2018-05-15
申请号：US15359114
申请日：2016-11-22
Applicant: Fingerprint Cards AB
Inventor： Eric Setterberg , David Carling
CPC classification number: G06F3/041 , G06F3/0304 , G06F3/03547 , G06F2203/0338 , G06K9/00013 , G06K9/0008 , G06K9/00335 , G06K9/00355 , G06K9/52 , G06K9/6215 , G06K2009/3291
Abstract: A method of estimating a finger movement comprising acquiring a navigation evaluation image from each of at least three navigation subareas of a fingerprint sensor; determining, for each of the navigation evaluation images, a navigation-related property of the navigation evaluation image; evaluating the navigation-related properties to find a combination of at least a first navigation-related property and a second navigation-related property that fulfills a navigation requirement; and selecting at least a first navigation subarea related to the first navigation-related property and a second navigation subarea related to the second navigation-related property. The finger movement is then estimated using a sequence of first navigation images acquired using the first navigation subarea, and a sequence of second navigation images acquired using the second navigation subarea.
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公开(公告)号：US09607205B2
公开(公告)日：2017-03-28
申请号：US14951056
申请日：2015-11-24
Applicant: FINGERPRINT CARDS AB
Inventor： Eric Setterberg , Hamid Sarve , Hans Thörnblom , Kenneth Jonsson
Abstract: A method of authenticating a candidate fingerprint by means of an electronic device comprising a touch sensor; and a fingerprint sensor. The method comprises the steps of: acquiring at least one touch sensor signal indicative of a sub-area of the touch sensor being touched by the candidate finger; acquiring at least one fingerprint image of the candidate fingerprint; retrieving a stored enrollment representation of the enrolled fingerprint of the enrolled finger; determining an authentication representation of the candidate fingerprint based on the fingerprint image; and determining an authentication result based on the authentication representation, the stored enrollment representation, and the at least one touch sensor signal.
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公开(公告)号：US09477868B1
公开(公告)日：2016-10-25
申请号：US15006503
申请日：2016-01-26
Applicant: Fingerprint Cards AB
Inventor： David Carling , Eric Setterberg , Hans Thörnblom
IPC: G06K9/00 , G06F3/0354
CPC classification number: G06K9/00013 , G06F3/0317 , G06F3/03547 , G06F3/038 , G06F3/044 , G06F3/04883 , G06F2203/0338 , G06K9/0002 , G06K9/6202
Abstract: A fingerprint-based navigation method using a finger navigation system comprising fingerprint sensing circuitry and navigation control circuitry. The method comprises the steps of: acquiring a series of navigation sequences of fingerprint images, and for each navigation sequence in the series of navigation sequences: determining an estimated momentary finger movement based on the navigation sequence of fingerprint images; determining at least one fingerprint image parameter value indicative of a fingerprint image status based on at least one fingerprint image in the navigation sequence of fingerprint images; and evaluating the fingerprint image status. The method further comprises the steps of determining a fingerprint sensing circuitry setting based on the evaluation; and providing the fingerprint sensing circuitry setting to the fingerprint sensing circuitry only during a time period between acquisition of a final fingerprint image in one navigation sequence and acquisition of a first fingerprint image in another, directly succeeding, navigation sequence.
Abstract translation: 一种使用手指导航系统的基于指纹的导航方法，其包括指纹感测电路和导航控制电路。 该方法包括以下步骤：获取指纹图像的一系列导航序列，以及针对一系列导航序列中的每个导航序列：基于指纹图像的导航序列确定估计的瞬间手指移动; 基于指纹图像的导航序列中的至少一个指纹图像来确定表示指纹图像状态的至少一个指纹图像参数值; 并评估指纹图像状态。 该方法还包括以下步骤：基于评估确定指纹感测电路设置; 以及仅在获取一个导航序列中的最终指纹图像和在另一个直接后续导航序列中获取第一指纹图像之间的时间段期间，将指纹感测电路设置提供给指纹感测电路。
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