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公开(公告)号：US20240290127A1
公开(公告)日：2024-08-29
申请号：US18574413
申请日：2021-07-01
Applicant: NEC Corporation
Inventor： Rui Ishiyama
IPC: G06V30/418 , G06V10/141 , H04N23/56 , H04N23/74
CPC classification number: G06V30/418 , G06V10/141 , H04N23/56 , H04N23/74
Abstract: A PTP management system includes an acquisition unit that captures an image of a PTP sheet with a camera from an opening side or a protruding side of pockets having a printed portion, to thereby acquire the image including the printed portion and a lattice pattern image formed on a cover film, and a generation unit that generates, from the acquired image, an image for individual identification to be used for identifying the PTP sheet.
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公开(公告)号：US11989925B2
公开(公告)日：2024-05-21
申请号：US17606488
申请日：2019-05-16
Applicant: NEC Corporation
Inventor： Toru Takahashi , Rui Ishiyama , Kengo Makino , Yuta Kudo
CPC classification number: G06V10/753 , G06T3/10 , G06T7/11 , G06V10/40 , G06V10/761 , G06T2207/20021
Abstract: An image matching apparatus matching a first image against a second image includes an acquiring unit, a generating unit, and a determining unit. The acquiring unit acquires a frequency feature of the first image and a frequency feature of the second image. The generating unit synthesizes the frequency feature of the first image and the frequency feature of the second image, and generates a quantized synthesized frequency feature in which a value of an element is represented by a binary value or a ternary value. The determining unit calculates a score indicating a degree to which the quantized synthesized frequency feature is a square wave having a single period, and matches the first image against the second image based on the score.
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公开(公告)号：US11748442B2
公开(公告)日：2023-09-05
申请号：US17049460
申请日：2018-04-24
Applicant: NEC Corporation
Inventor： Toru Takahashi , Rui Ishiyama
CPC classification number: G06F17/141 , G06F17/156 , G06F18/22 , G06V10/431 , G06V10/75 , G06F2218/14
Abstract: An image matching device includes a weight determination unit and a matching unit. Based on a synthesized frequency characteristic obtained by synthesizing a frequency characteristic of a first image with a frequency characteristic of a second image and an ideal synthesized frequency characteristic that is an ideal one obtained by synthesizing the frequency characteristic of the first image with the frequency characteristic of the second image, the weight determination unit determines a weight relating to frequency in performing matching of the first image and a third image. The matching unit performs matching of the first image and the third image based on the determined weight.
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公开(公告)号：US20230073961A1
公开(公告)日：2023-03-09
申请号：US17798126
申请日：2020-02-27
Applicant: NEC Corporation
Inventor： Toru Takahashi , Kango Makino , Rui Ishiyama
IPC: H05K13/08
Abstract: A board management system includes an extraction means and a generation means. The extraction means extracts a feature amount that depends on position deviation, for each of a plurality of specific components determined in advance based on a degree of variation in the component mounting position, among a plurality of components in a board image in which a board is captured. The generation means generates individual identification information to be used for identifying a board, from the extracted feature amount.
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公开(公告)号：US11594067B2
公开(公告)日：2023-02-28
申请号：US16486352
申请日：2017-02-16
Applicant: NEC CORPORATION
Inventor： Yuta Kudo , Rui Ishiyama , Toru Takahashi
IPC: G06T7/00 , G03B15/00 , H04N5/225 , H04N5/232 , G06V40/12 , G01J3/52 , G03B15/02 , G06K9/00 , H04N1/60
Abstract: An object management system includes an identifier generation device and an object collation device. The identifier generation device includes a generation unit that forms an ink layer on a target object, an imaging unit that images an uneven pattern on a surface of the ink layer, and a registration unit that registers the imaged result in a storage unit. The object collation device includes an imaging unit that images the uneven pattern on the surface of the ink layer formed on the target object, and a recognizing unit that recognizes the target object based on an image of the uneven pattern obtained by imaging.
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Patent Agency Ranking
公开(公告)号：US11468661B2
公开(公告)日：2022-10-11
申请号：US16977130
申请日：2018-03-05
Applicant: NEC CORPORATION
Inventor： Kengo Makino , Toru Takahashi , Rui Ishiyama , Yuta Kudo
Abstract: An image matching device that performs matching between a first image and a second image includes: a frequency characteristic acquisition unit configured to acquire a frequency characteristic of the first image and a frequency characteristic of the second image; a frequency characteristic synthesizing unit configured to synthesize the frequency characteristic of the first image and the frequency characteristic of the second image to generate a synthesized frequency characteristic; a determination unit configured to perform frequency transformation on the synthesized frequency characteristic to calculate a correlation coefficient map whose resolution coincides with a target resolution, and perform matching between the first image and the second image based on a matching score calculated from the correlation coefficient map; and a regulation unit configured to regulate the target resolution based on the matching score.
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公开(公告)号：US11233975B2
公开(公告)日：2022-01-25
申请号：US16724941
申请日：2019-12-23
Applicant: NEC Corporation
Inventor： Rui Ishiyama , Toru Takahashi
Abstract: The present invention addresses the problem of providing technology that makes it possible to perform verification for the purposes of distribution management, authenticity assessment, and the like of merchandise without building an RFID chip into each of a plurality of fasteners. The present invention is characterized in that image characteristics of a component of a product to be verified are acquired and the product to be verified is verified on the basis of the acquired image characteristics of the component.
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公开(公告)号：US10262427B2
公开(公告)日：2019-04-16
申请号：US15507322
申请日：2015-08-31
Applicant: NEC Corporation
Inventor： Toru Takahashi , Rui Ishiyama
Abstract: The present invention addresses the problem of providing a technique for determining the authenticity of a product without requiring a special device such as an integrated circuit (IC) tag. A means for solving this problem according to the invention is characterized by determining the authenticity of a target product on the basis of the validity of the association between the body of the product and a surface-treated component that is mounted to the body and that has been validated.
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公开(公告)号：US09720305B2
公开(公告)日：2017-08-01
申请号：US14418157
申请日：2013-08-02
Applicant: NEC Corporation
Inventor： Rui Ishiyama
CPC classification number: G03B15/06 , G02B13/0015 , G03B15/02 , G03B15/05 , G03B17/565 , H04N5/2254
Abstract: The present invention is an imaging aid aiding imaging of a predetermined region of a surface of an object having minute concave and convex portions and being subject to intense specular reflection, including: a light source unit that irradiates light; and a cover lid to cover a predetermined region of a surface of the object, where a part of a surface of the cover lid corresponding to a predetermined angular range from a normal line direction directly opposing the predetermined region is a black surface, and another surface of the cover lid corresponding to another angular range is made of a light-source surface diffusing and emitting light irradiated from the light source unit.
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公开(公告)号：US12182196B2
公开(公告)日：2024-12-31
申请号：US17640687
申请日：2019-12-25
Applicant: NEC CORPORATION
Inventor： Toru Takahashi , Rui Ishiyama , Kengo Makino
IPC: G06F16/583 , G06T7/00 , G06V10/22
Abstract: This image retrieval system comprises: a storage means for storing a plurality of registered images capturing a plurality of objects to be registered; an acquisition means for acquiring a retrieval image including a region of interest; an extraction means for extracting a feature amount from a region, in the retrieval image, other than the region of interest; a retrieval means for retrieving, from the plurality of registered images stored in the storage means, a registered image having a feature amount that matches the feature amount extracted by the extraction means; and an output means for outputting, in a manner that makes it possible to recognize a region corresponding to the region of interest in the retrieval image, all or a portion of the registered image retrieved by the retrieval means.
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