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公开(公告)号：US11704937B2
公开(公告)日：2023-07-18
申请号：US17680786
申请日：2022-02-25
Applicant: NEC Corporation
Inventor： Takashi Shibata , Shoji Yachida , Chisato Funayama , Masato Tsukada , Yuka Ogino , Keiichi Chono , Emi Kitagawa , Yasuhiko Yoshida , Yusuke Mori
CPC classification number: G06V40/197 , G06V40/172 , G06V40/19 , G06V40/25 , G06V40/70
Abstract: The disclosure is inputting a first image obtained by capturing an object of authentication moving in a specific direction; inputting a second image at least for one eye obtained by capturing a right eye or a left eye of the object; determining whether the second image is of the left eye or the right eye of the object, based on information including the first image, and outputting a determination result associated with the second image as left/right information; comparing characteristic information relevant to the left/right information, the characteristic information being acquired from a memory that stores the characteristic information of a right eye and a left eye pertaining to object to be authenticated, with characteristic information associated with the left/right information, and calculating a verification score; and authenticating the object captured in the first image and the second image, based on the verification score, and outputting an authentication result.
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公开(公告)号：US20230027196A1
公开(公告)日：2023-01-26
申请号：US17781775
申请日：2019-12-16
Applicant: NEC Corporation
Inventor： Ryuichi Akashi , Ryo Yamakabe , Yuka Ogino , Takahiro Toizumi , Chisato Funayama , Keiichi Chono , Masato Tsukada
Abstract: The optical control apparatus includes a light source, a light collecting section, and an optical path control section. The light source emits light. The light collecting section collects the light emitted from the light source and illuminates the light onto an object.
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33.发明授权公开(公告)号：US11539872B2
公开(公告)日：2022-12-27
申请号：US17279141
申请日：2018-09-28
Applicant: NEC Corporation
Inventor： Keiichi Chono , Masato Tsukada , Chisato Funayama , Ryuichi Akashi , Yuka Ogino , Takashi Shibata , Shoji Yachida , Hiroshi Imai , Emi Kitagawa , Yasuhiko Yoshida , Yusuke Mori
Abstract: To provide a system, a method and the like for acquiring more images or more quickly focused images. A control device acquires information regarding a situation of a range captured by an imaging device, determines a mode according to an assumed situation of the range captured by the imaging device among a plurality of focusing modes, and transmits designation information specifying the determined mode to the imaging device. The imaging device receives the designation information from the control device, and captures an image using the mode specified by the received designation information.
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公开(公告)号：US11348370B2
公开(公告)日：2022-05-31
申请号：US17283050
申请日：2018-10-16
Applicant: NEC Corporation
Inventor： Takashi Shibata , Shoji Yachida , Chisato Funayama , Masato Tsukada , Yuka Ogino , Keiichi Chono , Emi Kitagawa , Yasuhiko Yoshida , Yusuke Mori
Abstract: The disclosure is inputting a first image captured an image of an authentication target; inputting a second image captured an image of a right eye or a left eye of the target; determining whether the second image is of a left eye or a right eye of the target based on information including the first image, and outputting a determination result as left/right information in association with the second image; detecting an overlap between a region including the second image and a predetermined region in the first image; calculating a verification score by comparing characteristic information that are related to the left/right information with iris characteristic information calculated from the second image, and calculating a first weighted verification score obtained by weighting the verification score with a detection result; and authenticating a target in the second image based on the first weighted verification score, and outputting an authentication result.
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公开(公告)号：US12283077B2
公开(公告)日：2025-04-22
申请号：US17801441
申请日：2020-02-27
Applicant: NEC Corporation
Inventor： Keiichi Chono , Ryuichi Akashi , Yuka Ogino
IPC: G06V10/141 , G06V40/18 , G06V40/19
Abstract: An imaging system (10) includes: iris imaging means (1) for photographing an iris of a subject; first irradiation means (2a) for applying light to the subject; and second irradiation means (2b) for applying light to the subject in such a manner that an angle between an optical axis of the light emitted from the second irradiation means (2b) and an optical axis of the iris imaging means (1) is larger than an angle between an optical axis of the light emitted from the first irradiation means (2a) and the optical axis of the iris imaging means (1).
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Patent Agency Ranking
36.发明授权公开(公告)号：US12271454B2
公开(公告)日：2025-04-08
申请号：US17620551
申请日：2019-06-26
Applicant: NEC Corporation
Inventor： Yuka Ogino , Keiichi Chono
Abstract: An authentication system (1) is provided with: a first imaging apparatus (3) that obtains a first image (300) used for an authentication by capturing an image of a first imaging range; a second imaging apparatus (3) that obtains a second image (200) by capturing an image of a second imaging range that is wider than the first imaging range; and a control apparatus (6) that selects a target person (Ta) for the authentication on the basis of a target area (TA) in the second image that includes a predetermined portion (TP) of a person (T) and a reference area (RA) in the second image that corresponds to the first imaging range.
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公开(公告)号：US12236714B2
公开(公告)日：2025-02-25
申请号：US17776314
申请日：2021-09-14
Applicant: NEC Corporation
Inventor： Ryo Yamakabe , Ryuichi Akashi , Yuka Ogino , Kosuke Yoshimi , Masato Tsukada
Abstract: An information processing system (10) comprises: a distance acquisition unit (110) that specifies an iris area containing an iris of a target from a visible-light image of the target, and acquires an iris distance that is a distance to the iris area; an iris image acquisition unit (120) that acquires an iris image of the target by changing a focal length according to the iris distance; a score computing unit (130) that calculates a score relating to deviation of a focus in the iris image, based on the iris image; and a correlation update unit (140) that updates correlation between the iris distance and the focal length at a moment of acquisition of the iris image, based on the score. According to such an information processing system, since the correlation is updated with good accuracy, it is possible to acquire the appropriate iris image.
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公开(公告)号：US20250046047A1
公开(公告)日：2025-02-06
申请号：US18926993
申请日：2024-10-25
Applicant: NEC Corporation
Inventor： Keiichi CHONO , Ryuichi Akashi , Yuka Ogino
IPC: G06V10/141 , G06V40/18 , G06V40/19
Abstract: An imaging system (10) includes: iris imaging means (1) for photographing an iris of a subject; first irradiation means (2a) for applying light to the subject; and second irradiation means (2b) for applying light to the subject in such a manner that an angle between an optical axis of the light emitted from the second irradiation means (2b) and an optical axis of the iris imaging means (1) is larger than an angle between an optical axis of the light emitted from the first irradiation means (2a) and the optical axis of the iris imaging means (1).
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公开(公告)号：US12159484B2
公开(公告)日：2024-12-03
申请号：US17912956
申请日：2020-03-30
Applicant: NEC Corporation
Inventor： Yuka Ogino
Abstract: An imaging system includes: an acquisition unit acquiring an iris image captured by an iris imaging means for capturing an iris of a target person or a whole image captured by a whole imaging means for capturing the target person; an estimation unit estimating a three-dimensional position of a target person being included in the acquired whole image; a selection unit selecting a coordinate transformation matrix that transforms a three-dimensional position of the target person into two-dimensional coordinates; a transformation unit transforming coordinates of an eye of a target person being included in a whole image associated with the estimated three-dimensional position into two-dimensional coordinates, based on the selected coordinate transformation matrix; and a setting unit setting, based on the transformed coordinates of an eye of the target person, a parameter for capturing an iris of the target person by the iris imaging means.
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公开(公告)号：US12142079B2
公开(公告)日：2024-11-12
申请号：US17636074
申请日：2021-03-18
Applicant: NEC Corporation , The University of Electro-Communications
Inventor： Masatsugu Ichino , Daisuke Uenoyama , Tsubasa Boura , Takahiro Toizumi , Masato Tsukada , Yuka Ogino
IPC: G06V40/18 , G06T3/40 , G06V10/77 , G06V10/774 , G06V10/776
Abstract: A feature conversion learning device is configured to acquire a first image, reduce the first image to a second image having lower resolution than the first image, enlarge the second image to a third image having the same resolution as the first image, extract a first feature that is a feature of the first image and a second feature, convert the second feature into a third feature, and learn a feature conversion method based on a result of comparing the first feature with the third feature.
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