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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：US12010422B2
公开(公告)日：2024-06-11
申请号：US17801925
申请日：2020-02-28
Applicant: NEC Corporation
Inventor： Ryo Yamakabe , Yuka Ogino , Keiichi Chono
CPC classification number: H04N23/67 , G02B7/04 , G03B13/36 , G06V40/193
Abstract: The image acquiring device 10 includes the voltage control unit 30 which generates first voltage information that can identify voltage applied to the first variable-focus lens 20A included in the first imaging unit 20 installed in a position where a subject can be photographed and whose focal length changes in accordance with an applied voltage, and generates second voltage information that can identify voltage applied to the second variable-focus lens 21A included in the second imaging unit 21 installed in the position where the subject can be photographed and whose focal length changes in accordance with an applied voltage, and the image judgment unit 40 which inputs images from the first imaging unit 20 and the second imaging unit 21, and selects one image taken at an in-focus position among input images, wherein the voltage control unit 30 generates information, as the first voltage information, that can identify each voltage in a time series of voltages whose values change with time, and generates information, as the second voltage information, that can identify that each of the voltages identified by the first voltage information is applied to the second variable-focus lens 21A after a predetermined period of delay.
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Patent Agency Ranking
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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公开(公告)号：US20250080853A1
公开(公告)日：2025-03-06
申请号：US18722700
申请日：2021-12-28
Applicant: NEC Corporation
Inventor： Ryo Yamakabe , Kosuke Yoshimi , Yuka Ogino , Ryuichi Akashi , Masato Tsukada , Ryoma Oami
IPC: H04N23/695 , H04N23/72
Abstract: An imaging system includes: an information acquisition unit that acquires movement information about a movement of at least a part of a target; a periodicity estimation unit that estimates periodicity about the movement of at least a part of the target, on the basis of the movement information; and an image acquisition unit that controls a camera for imaging the target on the basis of the periodicity and acquires an image of the target. According to such an imaging system, it is possible to properly image a moving target.
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公开(公告)号：US12146787B2
公开(公告)日：2024-11-19
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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6.发明授权公开(公告)号：US12033433B2
公开(公告)日：2024-07-09
申请号：US17621760
申请日：2019-06-25
Applicant: NEC Corporation
Inventor： Keiichi Chono , Masato Tsukada , Chisato Funayama , Takahiro Toizumi , Yuka Ogino , Ryuichi Akashi , Ryo Yamakabe
IPC: G06V40/19
CPC classification number: G06V40/19
Abstract: An iris recognition apparatus for performing recognition of a target person based on an iris pattern of the target person, is provided with: an imaging device that performs an imaging processing for sequentially outputting imaged images while changing a focal position; and a determining device that starts a focusing determination for determining whether or not an image is a focused image before the imaging device completes the imaging processing.
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7.发明申请公开(公告)号：US20220270406A1
公开(公告)日：2022-08-25
申请号：US17621760
申请日：2019-06-25
Applicant: NEC Corporation
Inventor： Keiichi CHONO , Masato Tsukada , Chisato Funayama , Takahiro Toizumi , Yuka Ogino , Ryuichi Akashi , Ryo Yamakabe
IPC: G06V40/19
Abstract: An iris recognition apparatus for performing recognition of a target person based on an iris pattern of the target person, is provided with: an imaging device that performs an imaging processing for sequentially outputting imaged images while changing a focal position; and a determining device that starts a focusing determination for determining whether or not an image is a focused image before the imaging device completes the imaging processing.
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