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公开(公告)号：US20220020129A1
公开(公告)日：2022-01-20
申请号：US17296048
申请日：2018-11-30
Applicant: NEC corporation
Inventor： Kengo MAKINO , Rui ISHIYAMA , Toru TAKAHASHI , Yuta KUDO
Abstract: An image matching apparatus according to the present invention includes: a common region specification unit configured to specify a common region between a first image and a second image; a date replacement unit configured to generate a first replaced image in which a brightness value of the common region of the first image is replaced based on a pixel in the first image, and a second replaced image in which a brightness value of the common region of the second image is replaced based on a pixel in the second image; and a matching unit configured to perform matching between the first image and the second image based on frequency characteristics of the first replaced image and the second replaced image.
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公开(公告)号：US20210192242A1
公开(公告)日：2021-06-24
申请号：US16770359
申请日：2018-10-17
Applicant: NEC CORPORATION
Inventor： Yuta KUDO
Abstract: A weight estimation unit estimates, from a person's image in which a person is included, a weight of a human body part of the person in accordance with an existence probability of the human body part of the person. A feature creation unit creates a feature for verification based on a weight of the person's image and a weight estimated by the weight estimation unit. A verification feature storage unit stores a feature of the person who is the object of verification as a verification feature. A person verification unit compares the feature for verification created by the feature creation unit and the verification feature stored in the verification feature storage unit.
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公开(公告)号：US20200019810A1
公开(公告)日：2020-01-16
申请号：US16497610
申请日：2017-03-28
Applicant: NEC Corporation
Inventor： Toru TAKAHASHI , Rui ISHIYAMA , Yuta KUDO
Abstract: An imaging unit, an extraction unit, a feature amount pair generation unit, and an imaging parameter adjustment unit are included. The imaging unit acquires images obtained by imaging each of N (N≥3) types of objects a plurality of times by setting a value of a specific imaging parameter, among a plurality of types of imaging parameters, as a certain candidate value and changing a value of the remaining imaging parameter. The extraction unit extracts a feature amount from each of the images. The feature amount pair generation unit generates, as a first feature amount pair for each of the N types of objects, a feature amount pair in which two feature amounts constituting the feature amount pair are extracted from images of objects of the same type, and generates, as a second feature amount pair for every combination of the N types of objects, a feature amount pair in which two feature amounts constituting the feature amount pair are extracted from a images of objects of the different types. The imaging parameter adjustment unit generates a first distribution that is a distribution of collation scores of the first feature amount pairs, generates a second distribution that is a distribution of collation scores of the second feature amount pairs, and on the basis of a degree of separation between the first distribution and the second distribution, determines the propriety of adopting the candidate value.
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公开(公告)号：US20220277573A1
公开(公告)日：2022-09-01
申请号：US17618132
申请日：2019-06-21
Applicant: NEC Corporation
Inventor： Kengo MAKINO , Toru TAKAHASHI , Rui ISHIYAMA , Yuta KUDO
IPC: G06V30/146 , G06V30/14 , G06V30/19
Abstract: An object management system includes an acquisition means for acquiring an image in which a surface of a registration target object, having a circle and a handwritten character drawn thereon, is captured, a generation means for detecting an ellipse corresponding to the circle from the image and generating a registration image in which the image is applied with projective transformation such that the ellipse becomes a circle, and a registration means for writing the registration image into a storage means as data for determining the sameness of the registration target object.
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公开(公告)号：US20220165095A1
公开(公告)日：2022-05-26
申请号：US17666834
申请日：2022-02-08
Applicant: NEC Corporation
Inventor： Yuta KUDO
Abstract: A weight estimation unit estimates, from a person's image in which a person is included, a weight of a human body part of the person in accordance with an existence probability of the human body part of the person. A feature creation unit creates a feature for verification based on a weight of the person's image and a weight estimated by the weight estimation unit. A verification feature storage unit stores a feature of the person who is the object of verification as a verification feature. A person verification unit compares the feature for verification created by the feature creation unit and the verification feature stored in the verification feature storage unit.
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Patent Agency Ranking
公开(公告)号：US20220076005A1
公开(公告)日：2022-03-10
申请号：US17417939
申请日：2019-12-11
Applicant: NEC Corporation
Inventor： Yuta KUDO
Abstract: A person authentication apparatus (20) generates one or more second image sequences (50) by applying a predetermined time-series operation to a first image sequence (40) acquired from a camera (10). The person authentication apparatus (20) extracts, from each of two or more image sequences among the first image sequence (40) and the second image sequence (50), a gait feature of a person included in the image sequence. The person authentication apparatus (20) performs authentication of a person by comparing the plurality of extracted gait features with a verification feature stored in a verification database (30).
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公开(公告)号：US20210342617A1
公开(公告)日：2021-11-04
申请号：US16757806
申请日：2018-09-26
Applicant: NEC CORPORATION
Inventor： Yuta KUDO , Rui ISHIYAMA , Toru TAKAHASHI , Kengo MAKINO
Abstract: The present invention relates to an information processing device used in an image capture device that illuminates an object with an illuminating unit and images light reflected from the object as a reflection image with an imaging unit. The information processing device includes an irradiation angle determining unit configured to determine an irradiation angle when the illuminating unit illuminates the object based on a tilt statistic that is a value corresponding to tilt distribution of irregularities formed on the surface of the object.
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公开(公告)号：US20190005326A1
公开(公告)日：2019-01-03
申请号：US15737857
申请日：2016-05-18
Applicant: NEC Corporation
Inventor： Yuta KUDO , Rui ISHIYAMA , Toru TAKAHASHI
Abstract: An individual identifier extraction device has: an acquisition part configured to acquire an image of a layer formed on an object, containing fine particles, and having an irregular planar shape; and an extraction part configured to extract a feature quantity dependent on the planar shape of the layer and the distribution of the particles as an individual identifier of the object from the image.
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公开(公告)号：US20230368351A1
公开(公告)日：2023-11-16
申请号：US18225824
申请日：2023-07-25
Applicant: NEC CORPORATION
Inventor： Yuta KUDO
IPC: G06T7/00 , G06T7/77 , G06V40/70 , G06V40/10 , G06F18/214 , G06V10/764 , G06V10/82 , G06V10/44
CPC classification number: G06T7/00 , G06T7/77 , G06V40/70 , G06V40/10 , G06F18/214 , G06V10/764 , G06V10/82 , G06V10/454 , G06V40/103 , G06T2207/20076 , G06T2207/20081 , G06T2207/20084 , G06T2207/30196
Abstract: A weight estimation unit estimates, from a person's image in which a person is included, a weight of a human body part of the person in accordance with an existence probability of the human body part of the person. A feature creation unit creates a feature for verification based on a weight of the person's image and a weight estimated by the weight estimation unit. A verification feature storage unit stores a feature of the person who is the object of verification as a verification feature. A person verification unit compares the feature for verification created by the feature creation unit and the verification feature stored in the verification feature storage unit.
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公开(公告)号：US20220222977A1
公开(公告)日：2022-07-14
申请号：US17668515
申请日：2022-02-10
Applicant: NEC Corporation
Inventor： Yuta KUDO
Abstract: A weight estimation unit estimates, from a person's image in which a person is included, a weight of a human body part of the person in accordance with an existence probability of the human body part of the person. A feature creation unit creates a feature for verification based on a weight of the person's image and a weight estimated by the weight estimation unit. A verification feature storage unit stores a feature of the person who is the object of verification as a verification feature. A person verification unit compares the feature for verification created by the feature creation unit and the verification feature stored in the verification feature storage unit.
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