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公开(公告)号：US20230087275A1
公开(公告)日：2023-03-23
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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公开(公告)号：US20220383658A1
公开(公告)日：2022-12-01
申请号：US17772591
申请日：2019-11-05
Applicant: NEC Corporation , NEC Platforms, Ltd.
Inventor： Toshinobu OGATSU , Ryoma OAMI , Toshiyuki SASHIHARA , Takamichi MIYAMOTO , Ryuichi AKASHI , Ryo YAMAKABE , Daisuke SHIMADA
IPC: G06V40/16 , G06V10/141 , G06V40/18 , G06F21/32
Abstract: An imaging apparatus for authentication includes: a first imaging unit that obtains a first image used in a first authentication process by imaging a target person; a second imaging unit that obtains a second image used in a second image process by imaging the target person in an imaging range narrower than that of the first imaging unit; a drive unit that integrally drives the first imaging unit and the second imaging unit; and a drive control unit that controls the drive unit on the basis of the first image.
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公开(公告)号：US20220141372A1
公开(公告)日：2022-05-05
申请号：US17431545
申请日：2020-02-12
Applicant: NEC Corporation
Inventor： Keiichi CHONO , Ryuichi AKASHI , Yuka OGINO , Masato TSUKADA
IPC: H04N5/235 , G06V10/141 , H04N5/225 , G06V40/19
Abstract: An illumination device emits light toward a moving subject. A controller controls light emitted from the illumination device so that the amount of light applied to the subject is adjusted to a specific amount or smaller. For example, when the illumination device emits light in a pulsed manner, the controller may control the amount of light applied to the subject by controlling at least one of the pulse width and the pulse intensity of the light. The controller may, for example, control the light emitted from the illumination device according to the distance between the illumination device and the subject.
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公开(公告)号：US20220005203A1
公开(公告)日：2022-01-06
申请号：US17294071
申请日：2018-11-19
Applicant: NEC Corporation
Inventor： Ryuichi AKASHI , Keiichi CHONO , Masato TSUKADA , Chisato FUNAYAMA , Takahiro TOIZUMI , Yuka OGINO
Abstract: In order to detect the foreground without being affected by reflected light from the shadow of an object or the background and so on, in both indoor and outdoor environments, the image processing method includes a step of generating first foreground likelihood from a visible light image, a step of generating second foreground likelihood from a depth image in which the same object is captured as that in the visible light image, a step of generating reliability of the depth image using at least the visible light image and the depth image, and a step of determining foreground likelihood of the object based on the first foreground likelihood and the second foreground likelihood, using the reliability of the depth image as a weight.
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5.发明申请公开(公告)号：US20250045895A1
公开(公告)日：2025-02-06
申请号：US18836801
申请日：2022-02-15
Applicant: NEC Corporation
Inventor： Ryuichi AKASHI , Takahiro TOIZUMI , Yuho SHOJI
IPC: G06T7/00 , G06V10/74 , G06V10/764
Abstract: An information processing apparatus includes: a deterioration degree calculation unit that calculates a deterioration degree in quality of an image; a deterioration factor classification unit that classifies a deterioration factor that is a factor of deterioration in the quality of the image; and a quality score calculation unit that calculates a quality score indicating the quality of the image, on the basis of the deterioration degree and the deterioration factor. According to such an information processing apparatus, the quality of the image can be properly evaluated.
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Patent Agency Ranking
公开(公告)号：US20230360439A1
公开(公告)日：2023-11-09
申请号：US18223462
申请日：2023-07-18
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: An information providing device according to one aspect of the present disclosure includes: at least one memory storing a set of instructions; and at least one processor configured to execute the set of instructions to: receive a face image; determine whether a person in the face image is unsuitable for iris data acquisition based on the face image; and output information based on determining that the person is unsuitable for the iris data acquisition when the person is determined to be unsuitable for the iris data acquisition.
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公开(公告)号：US20230351729A1
公开(公告)日：2023-11-02
申请号：US17638900
申请日：2021-03-29
Applicant: NEC Corporation
Inventor： Masato TSUKADA , Takahiro TOIZUMI , Ryuichi AKASHI
IPC: G06V10/774 , G06F21/32 , G06V40/18 , G06V10/776
CPC classification number: G06V10/774 , G06F21/32 , G06V40/193 , G06V40/197 , G06V10/776
Abstract: A learning system (10) comprises: a selection unit (110) that selects from images corresponding to a plurality of frames shot at a first frame rate, part of the images, the part including an image taken outside a focus range; an extraction unit (120) that extracts a feature amount from the part of the images; and a learning unit (130) that performs learning for the extraction unit based on the feature amount extracted and correct answer information indicating a correct answer with respect to the feature amount. According to such a learning system, it is possible to execute machine learning assumed that moving images are shot at a low frame rate.
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公开(公告)号：US20220036107A1
公开(公告)日：2022-02-03
申请号：US17276389
申请日：2018-09-20
Applicant: NEC Corporation
Inventor： Ryuichi AKASHI
Abstract: A calculation device includes: an image input unit that receives, as an input, an image acquired by an image acquisition device that photographs a prescribed area; a visibility evaluation unit that calculates an evaluation value showing the visibility of a detection object in the image, on the basis of the contrast of the image and noise information showing the degree of noise included in the image; a calculation unit that calculates a maximum visually recognizable distance, which is the maximum distance from the image acquisition device to the detection object at which the detection object is visually recognized in the image, based on the evaluation value, a value set as the actual size of the detection object in the image, and the image angle of the image acquisition device; and an output unit that generates and outputs output information based on the maximum visually recognizable distance.
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9.发明申请公开(公告)号：US20210400202A1
公开(公告)日：2021-12-23
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：US20240078780A1
公开(公告)日：2024-03-07
申请号：US18509633
申请日：2023-11-15
Applicant: NEC Corporation
Inventor： Keiichi CHONO , Ryuichi AKASHI , Yuka OGINO
IPC: G06V10/141 , G06V40/18 , G06V40/19
CPC classification number: G06V10/141 , G06V40/19 , G06V40/197
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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