公开(公告)号：US20240221420A1

公开(公告)日：2024-07-04

申请号：US18429809

申请日：2024-02-01

Applicant: Hitachi, Ltd.

Inventor： Yusuke MATSUDA ,  Naoto MIURA ,  Akio NAGASAKA ,  Yo NONOMURA ,  Keiichiro NAKAZAKI

IPC: G06V40/145 ,  G06V10/141 ,  G06V10/143 ,  H04N23/56 ,  H04N23/74

CPC classification number: G06V40/145 ,  G06V10/141 ,  G06V10/143 ,  H04N23/56 ,  H04N23/74

Abstract: A photographing apparatus includes: an imaging unit which is arranged at a position opposed to a plurality of fingers to be presented, and is configured to image the plurality of fingers; and a plurality of light sources which are arranged in plurality in an array direction of the plurality of fingers, and are configured to irradiate the plurality of fingers with light from an outside of an opposing region in which the imaging unit is opposed to the plurality of fingers toward an inside of the opposing region.

公开(公告)号：US20220351542A1

公开(公告)日：2022-11-03

申请号：US17642630

申请日：2020-08-27

Applicant: Hitachi, Ltd.

Inventor： Yusuke MATSUDA ,  Naoto MIURA ,  Akio NAGASAKA ,  Yo NONOMURA ,  Keiichiro NAKAZAKI

IPC: G06V40/145 ,  H04N5/225 ,  H04N5/235 ,  G06V10/143 ,  G06V10/141

Abstract: A photographing apparatus includes: an imaging unit which is arranged at a position opposed to a plurality of fingers to be presented, and is configured to image the plurality of fingers; and a plurality of light sources which are arranged in plurality in an array direction of the plurality of fingers, and are configured to irradiate the plurality of fingers with light from an outside of an opposing region in which the imaging unit is opposed to the plurality of fingers toward an inside of the opposing region.

公开(公告)号：US20240126853A1

公开(公告)日：2024-04-18

申请号：US18278057

申请日：2022-02-18

Applicant: Hitachi, Ltd.

Inventor： Naoto MIURA ,  Keiichiro NAKAZAKI ,  Yusuke MATSUDA ,  Yo NONOMURA ,  Akio NAGASAKA

IPC: G06F21/32

CPC classification number: G06F21/32

Abstract: High-accuracy multimodal biometric authentication of a plurality of body organisms is achieved while suppressing postural fluctuation when the plurality of body organisms are captured. An authentication system stores feature quantities for body organisms in association with users and performs biometric authentication on the basis of images from a capture device. The capture device photographs a first body organism of a first user during a first period and captures a second body organism and a third body organism of the first user during a second period. The authentication processing device calculates a first feature quantity from the first body part photographed during the first period, respectively calculates a second feature quantity and a third feature quantity from the second body organism and the third body organism captured during the second period, and compares with the feature quantities for the body organisms of each user stored at the storage device.

公开(公告)号：US20230281284A1

公开(公告)日：2023-09-07

申请号：US17944048

申请日：2022-09-13

Applicant: Hitachi, Ltd.

Inventor： Yusuke MATSUDA ,  Naoto MIURA ,  Akio NAGASAKA ,  Yo NONOMURA ,  Keiichiro NAKAZAKI ,  Masahiro KATO

IPC: G06F21/32 ,  G06V10/143 ,  G06V10/141 ,  G06V10/44 ,  G06V10/60 ,  G06V40/10 ,  G06V40/12

CPC classification number: G06F21/32 ,  G06V10/143 ,  G06V10/141 ,  G06V10/44 ,  G06V10/60 ,  G06V40/117 ,  G06V40/1341 ,  G06V40/1365 ,  G06T2207/10152 ,  G06T2207/10048

Abstract: A photographing apparatus includes an irradiation unit configured to irradiate a living body with beams of light having a plurality of wavelengths different from one another, a photographing unit configured to photograph the living body irradiated by the irradiation unit to generate image data of the living body, an image processing module configured to generate, based on the image data generated by the photographing unit, a plurality of pieces of wavelength separation image data, by separation into the plurality of wavelengths, and a control module configured to control, based on the image data and on the plurality of pieces of wavelength separation image data generated by the image processing module, irradiation light amounts of the beams of light having the plurality of wavelengths.

公开(公告)号：US20240398297A1

公开(公告)日：2024-12-05

申请号：US18689039

申请日：2022-08-26

Applicant: Hitachi, Ltd.

Inventor： Masahiro KATO ,  Akio NAGASAKA ,  Naoto MIURA ,  Yo NONOMURA ,  Yusuke MATSUDA ,  Keiichiro NAKAZAKI

IPC: A61B5/15 ,  A61B5/1171 ,  G06V40/145

Abstract: In order to solve such a problem, the invention provides a blood collection system used for collecting blood of a subject and a blood collection method executed in the blood collection system. The blood collection system punctures a finger of the subject with a puncture needle; and then supplies pressurized air to a cuff attached to the finger of the subject in a rolling manner so as to inflate the cuff and apply a predetermined pressure to the finger of the subject.

公开(公告)号：US20220147731A1

公开(公告)日：2022-05-12

申请号：US17495982

申请日：2021-10-07

Applicant: Hitachi, Ltd.

Inventor： Yusuke MATSUDA ,  Naoto MIURA ,  Akio NAGASAKA ,  Yo NONOMURA ,  Keiichiro NAKAZAKI

IPC: G06K9/00 ,  G06K9/46 ,  G06F21/32

Abstract: To provide an imaging device capable of reducing discomfort caused by visible light. A light source can emit the visible light and invisible light as irradiation light. An imaging unit captures an image of an irradiation region irradiated with the irradiation light to acquire an image. A processor causes the imaging unit to acquire a detection image in a first irradiation mode in which the invisible light is emitted from the light source, and determines whether a biometric object is presented in the irradiation region based on the detection image. When the biometric object is presented, the processor causes the imaging unit to acquire the biometric image obtained by copying the biometric object as the image in a second irradiation mode in which the visible light and the invisible light are emitted from the light source.

公开(公告)号：US20220121869A1

公开(公告)日：2022-04-21

申请号：US17497802

申请日：2021-10-08

Applicant: Hitachi, Ltd.

Inventor： Naoto MIURA ,  Yusuke MATSUDA ,  Akio NAGASAKA ,  Yo NONOMURA ,  Keiichiro NAKAZAKI

IPC: G06K9/00 ,  G06K9/62 ,  G06K9/20 ,  G06T7/194 ,  G06K9/46

Abstract: The objective is to achieve highly accurate authentication even when there is variation in the ambient light environment during biometric imaging. A biometric authentication device includes an image capturing unit that captures images of a living body, a light source for capturing images of the living body, an optical filter that selectively passes and blocks light according to wavelength, a spectroscopic processing unit that separates multiple wavelengths captured simultaneously, respectively, and a calculation unit that calculates the shape and posture of a predetermined part of the living body in the captured images, a background removal unit that removes the background from the image of the living body using the spectral images of the living body and the spectral image of the unwanted ambient light, and an authentication unit that performs biometric authentication using the image of the predetermined part.