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公开(公告)号：US20240221420A1
公开(公告)日：2024-07-04
申请号：US18429809
申请日：2024-02-01
申请人： Hitachi, Ltd.
发明人： Yusuke MATSUDA , Naoto MIURA , Akio NAGASAKA , Yo NONOMURA , Keiichiro NAKAZAKI
IPC分类号： G06V40/145 , G06V10/141 , G06V10/143 , H04N23/56 , H04N23/74
CPC分类号： G06V40/145 , G06V10/141 , G06V10/143 , H04N23/56 , H04N23/74
摘要： 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.
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公开(公告)号：US20220351542A1
公开(公告)日：2022-11-03
申请号：US17642630
申请日：2020-08-27
申请人： Hitachi, Ltd.
发明人： Yusuke MATSUDA , Naoto MIURA , Akio NAGASAKA , Yo NONOMURA , Keiichiro NAKAZAKI
IPC分类号： G06V40/145 , H04N5/225 , H04N5/235 , G06V10/143 , G06V10/141
摘要： 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.
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公开(公告)号：US20230359717A1
公开(公告)日：2023-11-09
申请号：US18024567
申请日：2021-08-25
申请人： Hitachi, Ltd.
发明人： Keiichiro NAKAZAKI , Naoto MIURA , Yusuke MATSUDA , Akio NAGASAKA
CPC分类号： G06F21/32 , G06V40/15 , G06V40/67 , G06V40/1365 , G06V40/172 , H04N23/90 , G06V40/40
摘要： Authentication is performed by confirming that the true operator presents his/her own biometric authentication information at a common portable information terminal. The biometric authentication system has an image capture unit that acquires first and second image data of different biometric areas of an operator during a predetermined period, a display that displays a guide to guide the operator to the location of the biometric area in order to capture different biometric areas of the operator, and a memory that stores biometric authentication information of the operator in advance. Furthermore, the first vital information and the second vital information are extracted from the image data of the different biometric areas, respectively, the identity of the operator is determined based on the first vital information and the second vital information, and if the identity of the operator is confirmed, the biometric authentication is performed.
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公开(公告)号：US20240126853A1
公开(公告)日：2024-04-18
申请号：US18278057
申请日：2022-02-18
申请人： Hitachi, Ltd.
发明人： Naoto MIURA , Keiichiro NAKAZAKI , Yusuke MATSUDA , Yo NONOMURA , Akio NAGASAKA
IPC分类号： G06F21/32
CPC分类号： G06F21/32
摘要： 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.
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公开(公告)号：US20230281284A1
公开(公告)日：2023-09-07
申请号：US17944048
申请日：2022-09-13
申请人： Hitachi, Ltd.
发明人： Yusuke MATSUDA , Naoto MIURA , Akio NAGASAKA , Yo NONOMURA , Keiichiro NAKAZAKI , Masahiro KATO
IPC分类号： G06F21/32 , G06V10/143 , G06V10/141 , G06V10/44 , G06V10/60 , G06V40/10 , G06V40/12
CPC分类号： G06F21/32 , G06V10/143 , G06V10/141 , G06V10/44 , G06V10/60 , G06V40/117 , G06V40/1341 , G06V40/1365 , G06T2207/10152 , G06T2207/10048
摘要： 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.
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公开(公告)号：US20220147731A1
公开(公告)日：2022-05-12
申请号：US17495982
申请日：2021-10-07
申请人： Hitachi, Ltd.
发明人： Yusuke MATSUDA , Naoto MIURA , Akio NAGASAKA , Yo NONOMURA , Keiichiro NAKAZAKI
摘要： 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.
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公开(公告)号：US20220121869A1
公开(公告)日：2022-04-21
申请号：US17497802
申请日：2021-10-08
申请人： Hitachi, Ltd.
发明人： Naoto MIURA , Yusuke MATSUDA , Akio NAGASAKA , Yo NONOMURA , Keiichiro NAKAZAKI
摘要： 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.
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