公开(公告)号：US20250166418A1

公开(公告)日：2025-05-22

申请号：US18956117

申请日：2024-11-22

Applicant: FINGERPRINT CARDS ANACATUM IP AB

Inventor： Gabriel HINE ,  Mikkel STEGMANN

IPC: G06V40/40 ,  G06T7/73 ,  G06V40/18 ,  G06V40/19

Abstract: A method of a biometric recognition system of performing real-eye detection, and a biometric recognition system performing the method. In an aspect, a method of a biometric recognition system of performing real-eye detection is provided. The method comprises capturing a plurality of images comprising a representation of an eye of the individual, which images are captured utilizing polarized light reflected at the eye and received at a polarization-sensitive camera capturing said images, wherein for each image being captured a different polarization rotation is selected, detecting, from the representation in each captured image, birefringent features of a cornea of the individual, and determining, by matching the detected birefringent cornea features of the captured images with the expected birefringent cornea features, whether the detected birefringent cornea features are correctly rendered in at least one of the captured images; and if so determining that the eye is a real eye.

公开(公告)号：US20250094554A1

公开(公告)日：2025-03-20

申请号：US18728161

申请日：2023-01-30

Applicant: FINGERPRINT CARDS ANACATUM IP AB

Inventor： Gabriel HINE ,  Mikkel STEGMANN

IPC: G06F21/32 ,  G06V40/16 ,  G06V40/18 ,  G06V40/19 ,  G06V40/40

Abstract: The present disclosure relates to a method of authenticating an individual using biometric information of an eye of the individual, and a biometric recognition system performing the method. In an aspect, a method of a biometric recognition system of authenticating an individual using biometric information of an eye of the individual is provided. The method comprises capturing at least one image comprising a representation of an iris of the individual, which at least one image is captured utilizing polarized light reflected at the iris and received at a polarization-sensitive camera capturing said at least one image, detecting, from the representation, birefringent features of a cornea of the individual, comparing the detected birefringent cornea features with previously enrolled birefringent cornea features and if there is a match authenticating the individual.

公开(公告)号：US12197985B2

公开(公告)日：2025-01-14

申请号：US18246347

申请日：2021-10-29

Applicant: FINGERPRINT CARDS ANACATUM IP AB

Inventor： Hanna Skårbratt ,  Zhecheng Shao ,  Mats Slottner

IPC: G06K19/073

Abstract: A smartcard comprising: a plurality of smartcard substrate layers; an antenna layer comprising an antenna; a fingerprint sensor module embedded in the smartcard and connected to the antenna layer, the fingerprint sensor module being configured to receive energy and communicate with a reading device via the antenna, and wherein the fingerprint sensor module is galvanically isolated from an outside of the smartcard.

公开(公告)号：US12112568B2

公开(公告)日：2024-10-08

申请号：US18030399

申请日：2021-10-14

Applicant: FINGERPRINT CARDS ANACATUM IP AB

Inventor： Petter Östlund

IPC: G06V40/13 ,  G02B5/28 ,  G06V10/143 ,  G06V40/12

CPC classification number: G06V40/1394 ,  G02B5/281 ,  G06V10/143 ,  G06V40/13 ,  G06V40/1318 ,  G06V40/1324 ,  G06V40/1382

Abstract: A biometric imaging arrangement configured to acquire an image of an object comprising: an image sensor comprising a photodetector pixel array configured to detect light transmitted from the object for capturing an image, an optical filter assembly comprising at least an optical interference filter, the optical filter assembly being arranged to cover the photodetector pixel array, and the optical filter assembly having an infrared cut-off wavelength to at least partly block infrared light from reaching the photodetector pixel array, the optical filter assembly further having at least a first cut-off wavelength in the visible range of wavelengths, wherein the first cut-off wavelength depends on the angle of incidence of the received light on the optical filter assembly.

公开(公告)号：US12008425B2

公开(公告)日：2024-06-11

申请号：US17914911

申请日：2021-04-09

Applicant: Fingerprint Cards Anacatum IP AB

Inventor： Per Söderberg ,  Daniel Nygren

IPC: G06V40/13 ,  G06F21/32 ,  G06K19/07 ,  G06K19/073 ,  G06T5/50 ,  G06T7/80 ,  G06V40/12

CPC classification number: G06K19/0718 ,  G06F21/32 ,  G06K19/07354 ,  G06T5/50 ,  G06T7/80 ,  G06V40/1306 ,  G06V40/1335 ,  G06V40/1365 ,  G06T2207/20021 ,  G06T2207/20221

Abstract: A method of a fingerprint sensing system arranged in a smartcard configured to acquire fingerprint data of a user with a fingerprint sensor for biometric authentication, and a fingerprint sensing system performing the method. The method comprises detecting a finger of the user contacting a sensing area of the fingerprint sensor, initializing the fingerprint sensor with a predetermined sensor setting, acquiring a calibration sub-image which is confined in size to a subarea of the sensing area, determining whether or not a quality criterion is met for the acquired calibration sub-image, and if so acquiring one or more further sub-images confined in size to a subarea of the sensing area during a time period when the smartcard is not engaged in waiting time extension request signalling with a card reader, and combining a plurality of the acquired further sub-images into a representation of a fingerprint of the user.

公开(公告)号：US11989968B2

公开(公告)日：2024-05-21

申请号：US18259290

申请日：2022-02-08

Applicant: FINGERPRINT CARDS ANACATUM IP AB

Inventor： Ping-Liang Chen ,  Andreas Larsson

IPC: G06V40/13 ,  G11C11/419

CPC classification number: G06V40/1306 ,  G11C11/419

Abstract: A fingerprint sensing system comprising a plurality of conductive selection lines; a plurality of conductive read-out lines crossing the selection lines; selection circuitry controllable to provide a selection signal on at least one selected selection line in the plurality of selection lines; a plurality of pixel elements formed at intersections between the selection lines and the read-out lines; current providing circuitry coupled to the read-out lines and controllable to generate a current pulse in at least one of the read-out lines when reading out a sensing signal from each of the pixel elements.

公开(公告)号：US11922716B2

公开(公告)日：2024-03-05

申请号：US17909370

申请日：2021-03-10

Applicant: Fingerprint Cards Anacatum IP AB

Inventor： Johan Hammersberg

IPC: G06V40/13 ,  G01J5/10 ,  G06V40/12 ,  G06V40/40 ,  G01J5/00

CPC classification number: G06V40/1318 ,  G01J5/10 ,  G06V40/1365 ,  G06V40/40 ,  G01J2005/0077 ,  G01J2005/106

Abstract: The present invention relates to a passive terahertz biometric imaging device configured to be arranged under an at least partially transparent display panel and configured to capture a terahertz image of an object located on an opposite side of the transparent display panel, the terahertz biometric imaging device comprising: an image sensor comprising an antenna pixel array arranged to detect terahertz radiation produced by the object, for capturing a terahertz image of the object.

公开(公告)号：US11893100B2

公开(公告)日：2024-02-06

申请号：US17917780

申请日：2021-03-29

Applicant: Fingerprint Cards Anacatum IP AB

Inventor： Johan Hammersberg ,  Eric Setterberg ,  Mattias Carlén

IPC: G06F21/32 ,  G06V10/145 ,  G06V40/13 ,  G06V40/12 ,  G06V10/56 ,  G06V10/82 ,  G06V10/50 ,  G06V10/147 ,  G06V40/40

CPC classification number: G06F21/32 ,  G06V10/145 ,  G06V10/147 ,  G06V10/50 ,  G06V10/56 ,  G06V10/82 ,  G06V40/1318 ,  G06V40/1365 ,  G06V40/1382 ,  G06V40/1388 ,  G06V40/1394 ,  G06V40/45

Abstract: The present invention relates biometric authentication using an optical biometric arrangement comprising an image sensor comprising a photodetector pixel array configured to capture an image of an object, the image sensor being arranged under a color controllable light source comprising light source units, the method comprising: providing a light pattern comprising portions of different light intensity for illuminating the object; acquiring an image of the object, the image comprising image portions corresponding to the portions of different light intensity of the light pattern illuminating the object, at least one image portion being captured by pixels in the photodetector pixel array arranged directly under a light source being active during image acquisition, and at least one image portion being captured by pixels in the photodetector pixel array arranged under an at least partly in-active illumination area of the color controllable light source during image acquisition, and performing biometric authentication at least partly based on metrics extracted from the image portions.

公开(公告)号：US20240005702A1

公开(公告)日：2024-01-04

申请号：US18039337

申请日：2021-11-29

Applicant: Fingerprint Cards Anacatum IP AB

Inventor： Arvid HAMMAR ,  Hans MARTINSSON ,  Su LIU

IPC: G06V40/40 ,  G06V40/13 ,  G06V10/143

CPC classification number: G06V40/40 ,  G06V40/1318 ,  G06V10/143

Abstract: A biometric imaging arrangement comprises an image sensor comprising a photodetector pixel array for capturing an image of an object. An infrared cut-off filter is arranged to at least partly cover the photodetector pixel array. The infrared cut-off filter comprises a first filter area having a first transmission wavelength band including wavelengths in the visible range of wavelengths, and at least two additional filter areas having transmission wavelength bands including wavelengths in the visible range of wavelengths. The transmission wavelength bands of the additional filter areas being different from the first transmission wavelength band, wherein at least two of the additional filter areas are spatially separated by the first filter area.

公开(公告)号：US20230377366A1

公开(公告)日：2023-11-23

申请号：US18030399

申请日：2021-10-14

Applicant: FINGERPRINT CARDS ANACATUM IP AB

Inventor： Petter Östlund

IPC: G06V40/12 ,  G06V40/13 ,  G06V10/143 ,  G02B5/28

CPC classification number: G06V40/1394 ,  G06V40/13 ,  G06V10/143 ,  G02B5/281

Abstract: A biometric imaging arrangement configured to acquire an image of an object comprising: an image sensor comprising a photodetector pixel array configured to detect light transmitted from the object for capturing an image, an optical filter assembly comprising at least an optical interference filter, the optical filter assembly being arranged to cover the photodetector pixel array, and the optical filter assembly having an infrared cut-off wavelength to at least partly block infrared light from reaching the photodetector pixel array, the optical filter assembly further having at least a first cut-off wavelength in the visible range of wavelengths, wherein the first cut-off wavelength depends on the angle of incidence of the received light on the optical filter assembly.