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公开(公告)号：US20250017495A1
公开(公告)日：2025-01-16
申请号：US18896998
申请日：2024-09-26
Applicant: NEC Corporation
Inventor： Takashi SHIBATA , Shoji Yachida , Chisato Funayama , Masato Tsukada , Yuka Ogino , Keiichi Chono , Emi Kitagawa , Yasuhiko Yoshida , Yusuke Mori
IPC: A61B5/1171 , G06F21/32 , G06V10/26
Abstract: An authentication device includes an image acquisition unit, an identification unit, and an authentication unit. The image acquisition unit acquires an image of an eye of a subject. The identification unit identifies the colored pattern of a colored contact lens worn by the subject by comparing a reference image with the image of the eye. The authentication unit identifies the subject, using a feature in a region other than a colored region of the colored pattern in the iris region of the eye.
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公开(公告)号：US20240350038A1
公开(公告)日：2024-10-24
申请号：US18757651
申请日：2024-06-28
Applicant: NEC Corporation
Inventor： Takashi SHIBATA , Shoji YACHIDA , Chisato FUNAYAMA , Masato TSUKADA , Yuka OGINO , Keiichi CHONO , Emi KITAGAWA , Yasuhiko YOSHIDA , Yusuke MORI
IPC: A61B5/1171 , G06F21/32 , G06V10/26
CPC classification number: A61B5/1171 , G06F21/32 , G06V10/267
Abstract: An authentication device includes an image acquisition unit, an identification unit, and an authentication unit. The image acquisition unit acquires an image of an eye of a subject. The identification unit identifies the colored pattern of a colored contact lens worn by the subject by comparing a reference image with the image of the eye. The authentication unit identifies the subject, using a feature in a region other than a colored region of the colored pattern in the iris region of the eye.
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公开(公告)号：US20230368583A1
公开(公告)日：2023-11-16
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
CPC classification number: G06V40/70 , G06V40/197 , G06V20/52 , G06V40/171 , G06V40/19 , G06V40/103 , 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：US20230351809A1
公开(公告)日：2023-11-02
申请号：US18217851
申请日：2023-07-03
Applicant: NEC Corporation
Inventor： Takashi SHIBATA , Shoji YACHIDA , Chisato FUNAYAMA , Masato TSUKADA , Yuka OGINO , Keiichi CHONO , Emi KITAGAWA , Yasuhiko YOSHIDA , Yusuke MORI
IPC: G06V40/18 , G06V40/19 , G06V40/20 , G06V40/70 , G06V40/10 , G06V40/16 , G06V10/764 , G06V10/60 , G06V10/22
CPC classification number: G06V40/197 , G06V40/19 , G06V40/25 , G06V40/70 , G06V40/103 , G06V40/172 , G06V10/764 , G06V10/60 , G06V10/22
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：US20230110788A1
公开(公告)日：2023-04-13
申请号：US17797600
申请日：2020-02-14
Applicant: NEC Corporation
Inventor： Takashi SHIBATA , Motoki Masaka , Yuichi Abe , Kentarou Kudou , Masanori Kato , Shohei Ikeda
Abstract: The learning device learns a tracking model used for a radar device. A first acquisition unit acquires, from a radar device, a target detection information indicating a position of a target detected based on a received wave, and a track of the target calculated based on the target detection information. A second acquisition unit acquires a target position information indicating a position of the target. A learning data generation unit generates learning data using the target detection information, the track, and the target position information. A learning processing unit learns a tracking model for performing tracking processing of the target based on the target detection information, using the learning data.
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Patent Agency Ranking
公开(公告)号：US20220254193A1
公开(公告)日：2022-08-11
申请号：US17680698
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
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：US20220189207A1
公开(公告)日：2022-06-16
申请号：US17684808
申请日：2022-03-02
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：US20210201007A1
公开(公告)日：2021-07-01
申请号：US17058796
申请日：2018-05-29
Applicant: NEC Corporation
Inventor： Takashi SHIBATA , Azusa SAWADA , Katsuhiko TAKAHASHI
Abstract: The purpose of the present invention is to detect an object in images accurately by means of image recognition without using a special device for removing the influence of the parallax between a plurality of images. An image transformation unit (401) transforms a plurality of images acquired by an image acquisition unit (407). A reliability level calculation unit (402) calculates a level of reliability representing how small the misalignment between images is. A score calculation unit (405) calculates a total score taking into account both an object detection score based on a feature quantity calculated by a feature extraction unit (404), and the level of reliability calculated by the reliability level calculation unit (402). An object detection unit (406) detects an object in the images on the basis of the total score.
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公开(公告)号：US20200219241A1
公开(公告)日：2020-07-09
申请号：US16637560
申请日：2018-08-22
Applicant: NEC Corporation
Inventor： Takashi SHIBATA
IPC: G06T5/50
Abstract: An information processing device according to the present invention includes: a memory; and a processor. The processor performs operations. The operations includes: calculating an index for selecting a predetermined region in a pixel of an image; calculating a position difference amount between a first image at a first time among moving images having different properties, and a first synthetic image at a second time being a time previous to the first time; generating a second synthetic image by deforming the first synthetic image, based on the position difference amount; generating first information indicating a first region where a first index in the first image satisfies a predetermined condition, and a second region where a second index in the second synthetic image satisfies a predetermined condition; and synthesizing a third synthetic image at the first time, based on the first image, the second synthetic image, and the first information.
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10.发明申请公开(公告)号：US20180174282A1
公开(公告)日：2018-06-21
申请号：US15738189
申请日：2016-06-10
Applicant: NEC Corporation , TOKYO INSTITUTE OF TECHNOLOGY
Inventor： Takashi SHIBATA , Masayuki TANAKA , MASATOSHI OKUTOMI
CPC classification number: G06T5/009 , G06F17/16 , G06T5/50 , G06T2207/10024 , G06T2207/10032 , G06T2207/10036 , G06T2207/10048 , G06T2207/20221 , H04N1/387 , H04N1/60 , H04N5/2258 , H04N5/23245 , H04N5/332 , H04N5/3454 , H04N5/3675
Abstract: An image processing system includes: a weight determination circuitry configured to determine a band containing important information from among a group of images, which are acquired by a plurality of sensors, and to express a degree of importance of the band as a weight; a calculation circuitry configured to calculate, using the weight, an amount calculated based on a gradient of an image based on a gradient of each image, that is calculated based on the group of images, in order to restrict a gradient of an output image; and an image optimization circuitry configured to compose the output image using the amount calculated based on the gradient of the image.
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