公开(公告)号：US20200226340A1

公开(公告)日：2020-07-16

申请号：US16830871

申请日：2020-03-26

Applicant: Fingerprint Cards AB

Inventor： Kenneth JONSSON ,  David TINGDAHL

IPC: G06K9/00

Abstract: The present invention generally relates to a method for authenticating a finger of a user of an electronic device comprising a fingerprint sensor for sensing a fingerprint pattern, the method comprising the steps of: acquiring a candidate fingerprint image; determining, based on the candidate fingerprint image, a humidity level indication indicative of the humidity level of the finger; performing an authentication pre-process based on the humidity level indication; performing a fingerprint authentication process based on the pre-process to authenticate the user.

公开(公告)号：US20180225495A1

公开(公告)日：2018-08-09

申请号：US15842164

申请日：2017-12-14

Applicant: Fingerprint Cards AB

Inventor： Kenneth JONSSON ,  David TINGDAHL

IPC: G06K9/00

Abstract: The present invention generally relates to a method for authenticating a finger of a user of an electronic device comprising a fingerprint sensor for sensing a fingerprint pattern, the method comprising the steps of: acquiring a candidate fingerprint image; determining, based on the candidate fingerprint image, a humidity level indication indicative of the humidity level of the finger; performing an authentication pre-process based on the humidity level indication; performing a fingerprint authentication process based on the pre-process to authenticate the user.

公开(公告)号：US20160180141A1

公开(公告)日：2016-06-23

申请号：US14952169

申请日：2015-11-25

Applicant: FINGERPRINT CARDS AB

Inventor： Hamid SARVE ,  David TINGDAHL ,  Carsten JUNCKER ,  Niels MØRCH

IPC: G06K9/00 ,  G06T7/00 ,  G06K9/03

CPC classification number: G06K9/00026 ,  G06K9/0008 ,  G06K9/001 ,  G06K9/036

Abstract: In a fingerprint sensing system, a determination is made of a center of attention, COA, point. The COA point is a point on a finger of a user that is likely to be in proximity of the center of a fingerprint image of the finger obtained by a fingerprint sensor. This COA determination is used in guiding the user in a fingerprint enrolment procedure.

Abstract translation: 在指纹感测系统中，确定了注意中心，COA，点。 COA点是用户手指上可能位于由指纹传感器获得的手指的指纹图像的中心附近的点。 这种COA确定用于在指纹注册过程中指导用户。