公开(公告)号：US20170168600A1

公开(公告)日：2017-06-15

申请号：US15359114

申请日：2016-11-22

Applicant: Fingerprint Cards AB

Inventor： Eric Setterberg ,  David Carling

IPC: G06F3/041 ,  G06K9/62 ,  G06K9/52 ,  G06K9/00 ,  G06F3/03

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.

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.

公开(公告)号：US09672403B2

公开(公告)日：2017-06-06

申请号：US14847536

申请日：2015-09-08

Applicant: FINGERPRINT CARDS AB

Inventor： Mats Tuneld ,  Eric Setterberg

IPC: G06K9/00 ,  G06K9/03

CPC classification number: G06K9/0002 ,  G06K9/00006 ,  G06K9/00013 ,  G06K9/00597 ,  G06K9/00885 ,  G06K9/036

Abstract: The present invention generally relates to a method for authenticating a candidate fingerprint using a fingerprint authentication system, and specifically to the possibility of using personalized fingerprint sensor setting for a fingerprint sensor comprised with the fingerprint authentication system. The invention also relates to a corresponding electronic device and to a computer program product. Advantages with the invention include a minimized processing time for acquiring a good quality fingerprint image, thus increasing user convenience.The invention also relates to a corresponding fingerprint sensing system and to a computer program product.

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

IPC: G06K9/00 ,  G06T3/40

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。

公开(公告)号：US20160078274A1

公开(公告)日：2016-03-17

申请号：US14847536

申请日：2015-09-08

Applicant: FINGERPRINT CARDS AB

Inventor： Mats Tuneld ,  Eric Setterberg

IPC: G06K9/00

CPC classification number: G06K9/0002 ,  G06K9/00006 ,  G06K9/00013 ,  G06K9/00597 ,  G06K9/00885 ,  G06K9/036

Abstract: The present invention generally relates to a method for authenticating a candidate fingerprint using a fingerprint authentication system, and specifically to the possibility of using personalized fingerprint sensor setting for a fingerprint sensor comprised with the fingerprint authentication system. The invention also relates to a corresponding electronic device and to a computer program product. Advantages with the invention include a minimized processing time for acquiring a good quality fingerprint image, thus increasing user convenience.The invention also relates to a corresponding fingerprint sensing system and to a computer program product.

Abstract translation: 本发明一般涉及一种使用指纹验证系统认证候选指纹的方法，具体涉及对由指纹认证系统组成的指纹传感器使用个性化指纹传感器设置的可能性。 本发明还涉及相应的电子设备和计算机程序产品。 本发明的优点包括获得良好质量指纹图像的最小化处理时间，从而增加用户便利性。 本发明还涉及相应的指纹感测系统和计算机程序产品。