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公开(公告)号：US09646193B2
公开(公告)日：2017-05-09
申请号：US14951056
申请日：2015-11-24
Applicant: FINGERPRINT CARDS AB
Inventor： Eric Setterberg , Hamid Sarve , Hans Thörnblom , Kenneth Jonsson
CPC classification number: G06K9/00087 , G06F1/1684 , G06F3/044 , G06K9/0002 , G06K9/00067
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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Patent Agency Ranking
公开(公告)号：US09613428B2
公开(公告)日：2017-04-04
申请号：US14922748
申请日：2015-10-26
Applicant: FINGERPRINT CARDS AB
Inventor： Eric Setterberg , Hamid Sarvé , Kenneth Jonsson
CPC classification number: G06T7/0014 , G06K9/00026 , G06K9/00087
Abstract: The present invention concerns a method, a system, a device of authenticating a user using a body part including biometric information. The method comprises stitching partial enrolment images comprising different views of the user's body part into at least one mosaic and thereby creating an enrolled image, acquiring an authentication image of the body part, wherein the size of the authentication image is a fraction of the enrolled image, determining at least one area of interest in the enrolled image, and matching the authentication image with image data of the determined area of interest in the enrolled image.
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13.发明申请公开(公告)号：US20170004352A1
公开(公告)日：2017-01-05
申请号：US15189055
申请日：2016-06-22
Applicant: Fingerprint Cards AB
Inventor： Kenneth Jonsson , Eric Setterberg , David Tingdahl
IPC: G06K9/00
CPC classification number: G06K9/00114 , G06K9/00013 , G06K9/0008 , G06K9/001 , G06K2009/00966
Abstract: A computer-implemented method of performing fingerprint based authentication from matching local features represented by binary features which can be matched in an efficient implementation in one or both of software and hardware by computing Hamming distances between the binary features. A local feature in a verification image is said to be matching with a local feature in an enrolment image if the Hamming distance between the binary features falls below a pre-determined threshold. The computer-implemented method retains information about the similarity of local features in the two images and utilities it in an efficient way with the objective of improving fingerprint recognition rates and enabling finger liveness detection. In an aspect a normalized feature similarity distribution is generated as part of the representation in recognition and liveness detection.
Abstract translation: 一种计算机实现的方法，其通过匹配由二进制特征表示的局部特征来执行基于指纹的认证，所述二进制特征可以通过计算二进制特征之间的汉明距离来在软件和硬件的一个或两个中的有效实施中匹配。 如果二进制特征之间的汉明距离低于预定阈值，则验证图像中的本地特征被称为与注册图像中的本地特征匹配。 计算机实现的方法保留关于两个图像中的局部特征的相似性的信息，并以有效的方式实现它，目的是改善指纹识别率并实现手指活动检测。 在一方面，归一化特征相似性分布被生成为识别和活性检测中的表示的一部分。
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公开(公告)号：US09672409B2
公开(公告)日：2017-06-06
申请号：US15189055
申请日：2016-06-22
Applicant: Fingerprint Cards AB
Inventor： Kenneth Jonsson , Eric Setterberg , David Tingdahl
IPC: G06K9/00
CPC classification number: G06K9/00114 , G06K9/00013 , G06K9/0008 , G06K9/001 , G06K2009/00966
Abstract: A computer-implemented method of performing fingerprint based authentication from matching local features represented by binary features which can be matched in an efficient implementation in one or both of software and hardware by computing Hamming distances between the binary features. A local feature in a verification image is said to be matching with a local feature in an enrolment image if the Hamming distance between the binary features falls below a pre-determined threshold. The computer-implemented method retains information about the similarity of local features in the two images and utilities it in an efficient way with the objective of improving fingerprint recognition rates and enabling finger liveness detection. In an aspect a normalized feature similarity distribution is generated as part of the representation in recognition and liveness detection.
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公开(公告)号：US09508122B2
公开(公告)日：2016-11-29
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：US20160063298A1
公开(公告)日：2016-03-03
申请号：US14833968
申请日：2015-08-24
Applicant: FINGERPRINT CARDS AB
Inventor： Mats Tuneld , Hamid Sarvé , Kenneth Jonsson , Stefan Printz , Chao Chen
CPC classification number: G06K9/00013 , G06K9/00026 , G06K9/00067 , G06K9/00912
Abstract: Fingerprint enrolment is described. An initial procedure in which the appropriate area of the finger is determined from the size of a user's finger, followed by a guidance procedure where guidance information is provided in a pseudo random manner and further fingerprint data is obtained during the pseudo random guidance. When the appropriate area of the finger has been covered, fingerprint data is used in a calculation of fingerprint enrolment data that can be used in subsequent steps in the enrolment procedure.
Abstract translation: 描述指纹注册。 根据用户手指的尺寸确定手指的适当区域的初始过程，随后是以伪随机方式提供指导信息的指导过程，并且在伪随机指导期间获得进一步的指纹数据。 当手指的适当区域被覆盖时，指纹数据被用于计算注册过程中后续步骤中可以使用的指纹登记数据。
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