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公开(公告)号：US20250104468A1
公开(公告)日：2025-03-27
申请号：US18728165
申请日：2022-03-16
Applicant: NEC Corporation
Inventor： Masato Tsukada
Abstract: An information processing apparatus includes: a setting unit that sets an evaluation area in a target image including at least a body of a target, for evaluating a focus degree of a body area including a part of the body of the target; and a determination unit that determines whether or not the target image is a focused image in which the body area is in focus, on the basis of variance of luminance values of a plurality of pixels included in the evaluation area.
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公开(公告)号：US12223775B2
公开(公告)日：2025-02-11
申请号：US18221319
申请日：2023-07-12
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 detecting an authentication target who is moving in a predetermined direction in a video; inputting a first image in which an entire body of the target; calculating characteristic information from an image of the entire body in the first image, comparing the calculated characteristic information with characteristic information of the entire body stored in first memory that stores characteristic information of entire bodies of targets, and extracting candidate information of the targets from the first memory based on a first authentication result; inputting a second image in which an iris of the target; and comparing characteristic information of irises stored in second memory that stores the characteristic information of the irises of targets with characteristic information of an iris from the second image, calculating a verification score, executing second authentication on the target in the second image based on the verification score, and outputting an authentication result.
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公开(公告)号：US12217548B2
公开(公告)日：2025-02-04
申请号：US18221309
申请日：2023-07-12
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 detecting an authentication target who is moving in a predetermined direction in a video; inputting a first image in which an entire body of the target; calculating characteristic information from an image of the entire body in the first image, comparing the calculated characteristic information with characteristic information of the entire body stored in first memory that stores characteristic information of entire bodies of targets, and extracting candidate information of the targets from the first memory based on a first authentication result; inputting a second image in which an iris of the target; and comparing characteristic information of irises stored in second memory that stores the characteristic information of the irises of targets with characteristic information of an iris from the second image, calculating a verification score, executing second authentication on the target in the second image based on the verification score, and outputting an authentication result.
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14.发明授权公开(公告)号：US12087015B2
公开(公告)日：2024-09-10
申请号：US18008769
申请日：2020-06-09
Applicant: NEC Corporation
Inventor： Yuka Ogino , Masato Tsukada
Abstract: A photographing system according to one example embodiment includes a hardware photographing device configured to photograph each of a first pattern and a second pattern; at least one memory storing instructions; and at least one processor configured to execute the instructions to: set, for the hardware photographing device, a control value for changing the focal position; evaluate degrees of focus of a plurality of images of the first pattern and select an image having a maximum evaluation value, as well as evaluate degrees of focus of a plurality of images of the second pattern and select an image having a maximum evaluation value; and acquire a correspondence relationship between a focal position of an optical system and a control value, based on the control values used in capturing the images of the first pattern and the second pattern, and subject distances of the first pattern and the second pattern.
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公开(公告)号：US12056955B2
公开(公告)日：2024-08-06
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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Patent Agency Ranking
公开(公告)号：US12034900B2
公开(公告)日：2024-07-09
申请号：US17795678
申请日：2020-02-13
Applicant: NEC Corporation
Inventor： Takahiro Toizumi , Masato Tsukada , Chisato Funayama
CPC classification number: H04N1/465 , G06N20/00 , G06T7/90 , G06V10/761 , G06T2207/10024 , G06T2207/20081 , G09G5/06
Abstract: An image processing system according to the present disclosure includes: an image acquisition unit configured to acquire a monochrome image of a subject including a target part; a hint acquisition unit configured to acquire a category of the target part and a first color hint indicating a color of the target part; a hint conversion unit configured to convert the first color hint into a second color hint indicating the color of the target part based on the acquired category; and a colorization generation unit configured to generate a colorized image corresponding to the monochrome image from the monochrome image and the second color hint of the target part by using a prediction model trained by machine learning.
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公开(公告)号：US12014578B2
公开(公告)日：2024-06-18
申请号：US17681995
申请日：2022-02-28
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: G06V40/70 , G06V20/52 , G06V40/103 , G06V40/171 , G06V40/19 , G06V40/197 , G06V2201/07
Abstract: The disclosure is detecting an authentication target who is moving in a predetermined direction in a video; inputting a first image in which an entire body of the target; calculating characteristic information from an image of the entire body in the first image, comparing the calculated characteristic information with characteristic information of the entire body stored in first memory that stores characteristic information of entire bodies of targets, and extracting candidate information of the targets from the first memory based on a first authentication result; inputting a second image in which an iris of the target; and comparing characteristic information of irises stored in second memory that stores the characteristic information of the irises of targets with characteristic information of an iris from the second image, calculating a verification score, executing second authentication on the target in the second image based on the verification score, and outputting an authentication result.
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公开(公告)号：US12014573B2
公开(公告)日：2024-06-18
申请号：US17312094
申请日：2018-12-14
Applicant: NEC Corporation
Inventor： Masato Tsukada , Chisato Funayama , Yuka Ogino , Hiroshi Imai , Keiichi Chono , Emi Kitagawa , Yasuhiko Yoshida , Hiroshi Yamada , Takashi Shibata , Shoji Yachida , Ryuichi Akashi
CPC classification number: G06V40/18 , G06F21/32 , G06V10/143 , G06V10/56 , G06V40/19 , G06V40/193 , G06V40/40
Abstract: In order to determine whether a color contact lens is being worn on an iris, this image processing device includes: a first feature amount calculation means for using an image of the iris in a first wavelength band to calculate a first feature amount in the first wavelength band, said iris being used in authentication of a person; a second feature amount calculation means for using an image of the iris in a second wavelength band to calculate a second feature amount in the second wavelength band; and a covering determination means for determining, on the basis of the first feature amount and the second feature amount, whether a color contact lens is present on the iris.
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公开(公告)号：US11978282B2
公开(公告)日：2024-05-07
申请号：US17967004
申请日：2022-10-17
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
IPC: G06V40/18 , G06V10/147 , G06V10/20 , G06V40/19 , G06V10/62
CPC classification number: G06V40/19 , G06V10/147 , G06V10/255 , G06V40/197 , G06V10/62
Abstract: An authentication system 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: track an object included in a video captured by a first capture device; detect a candidate for biometric authentication in the object being tracked; determine whether biometric authentication has been performed for the candidate based on a record of biometric authentication performed for the object being tracked; and perform the biometric authentication for the candidate based on a video of an authentication part of the candidate when the biometric authentication has not been performed for the candidate, the video of the authentication part being captured by a second capture device having a capture range including a part of a capture range of the first capture device.
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公开(公告)号：US11935328B2
公开(公告)日：2024-03-19
申请号：US17431535
申请日：2020-02-12
Applicant: NEC Corporation
Inventor： Keiichi Chono , Takahiro Toizumi , Masato Tsukada
Abstract: Iris image pick-up devices have the same field of view and are disposed at mutually different positions. An overall image pick-up device performs image pick-up over a wide field of view. A guiding device guides a subject. An illumination device illuminates the subject with light. The controller controls, using an image from the overall image pick-up device, at least one of reading out an image from the iris image pick-up devices, presenting at least of an image and a sound through the guiding device, or providing illumination with light from the illumination device.
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