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公开(公告)号：US11729512B2
公开(公告)日：2023-08-15
申请号：US17431513
申请日：2019-02-26
Applicant: NEC Corporation
Inventor： Yuta Kudo , Rui Ishiyama , Toru Takahashi , Kengo Makino
IPC: H04N23/71 , G06V10/145 , H04N23/74
CPC classification number: H04N23/71 , G06V10/145 , H04N23/74
Abstract: An image capturing device, configured to illuminate an object by an illumination means and capture reflected light from the object as a reflection image by a capturing means, includes an irradiation angle range determination means. The irradiation angle range determination means determines, assuming that a group of pieces of unevenness existing at the same position on the surfaces of a plurality of individuals of an object is an unevenness group, an irradiation angle range for irradiating the object by the illumination means, on the basis of a statistic value of the inclination angles of the unevenness group in which variations in the inclination angles of the unevenness between individuals is larger than other unevenness groups, among the plurality of unevenness groups.
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公开(公告)号：US11908214B2
公开(公告)日：2024-02-20
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
CPC classification number: G06V30/1473 , G06V30/1456 , G06V30/19093
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：US20220326010A1
公开(公告)日：2022-10-13
申请号：US17764697
申请日：2019-10-04
Applicant: NEC Corporation
Inventor： Toru TAKAHASHI , Rui Ishiyama , Kengo Makino , Takashi Shibata
Abstract: A surface property estimation system includes an image acquisition means for acquiring an image of a surface of an object, an estimation means for estimating a surface property from the acquired image by using an estimation model obtained through machine learning with use of an image of a surface of an object and a surface property shown by the image as training data, an extraction means for extracting, from the acquired image, a feature amount unique to the image, and a registration means for storing the estimated surface property and the extracted feature amount in a storage means in association with each other.
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公开(公告)号：US11423632B2
公开(公告)日：2022-08-23
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：US10755419B2
公开(公告)日：2020-08-25
申请号：US15876276
申请日：2018-01-22
Applicant: NEC CORPORATION
Inventor： Kengo Makino
Abstract: There is provided a moving object detection technique capable of improving accuracy of detecting a moving object from video photographed by a moving camera. A moving object detection apparatus 10A according to an aspect of the present disclosure is provided with: a receiving portion 11 that receives video taken by an image capturing apparatus provided in a mobile body; a first calculation portion 13 that calculates first moving-object scores based on a motion of one or more pixels of image included in the video; a second calculation portion 15 that calculates second moving-object scores based on a background model and the image, wherein the background model is updated based on the image and the motions of the pixels; and a detection portion 16 that detects a moving object from the image based on the first scores and the second scores.
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Patent Agency Ranking
公开(公告)号：US12223656B2
公开(公告)日：2025-02-11
申请号：US17639791
申请日：2020-03-27
Applicant: NEC Corporation
Inventor： Toru Takahashi , Kengo Makino , Rui Ishiyama
Abstract: An individual identification system includes an acquiring means and a determining means. The acquiring means is configured to acquire a matched image obtained by shooting part of a predetermined region of a matching target object. The determining means is configured to calculate a score representing a degree to which a partial image similar to the matched image exists in a registration image obtained by shooting a predetermined region of a registration target object, and determine based on the score whether or not the matching target object is identical to the registration target object.
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公开(公告)号：US12183057B2
公开(公告)日：2024-12-31
申请号：US17639433
申请日：2020-10-23
Applicant: NEC Corporation
Inventor： Kengo Makino , Rui Ishiyama
IPC: G06V10/75
Abstract: An individual identification apparatus includes a setting means for setting an imaging condition for imaging a matching area of an object by a camera, an acquisition means for acquiring a matching image that is an image obtained by imaging the matching area of the object by the camera, a matching means for performing matching between the matching image and a registration image registered in advance, and a control means. The control means repeats processing of acquiring the matching image by the acquisition means and matching between the matching image and the registration image by the matching means, while changing the imaging condition set by the setting means, and determines an imaging condition in which a matching degree between the matching image and the registration image becomes a preset threshold or larger. The matching means identifies an individual based on the matching image captured under the determined imaging condition.
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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：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：US10853950B2
公开(公告)日：2020-12-01
申请号：US16537733
申请日：2019-08-12
Applicant: NEC CORPORATION
Inventor： Kengo Makino
Abstract: There is provided a moving object detection technique capable of improving accuracy of detecting a moving object from video photographed by a moving camera. A moving object detection apparatus 10A according to an aspect of the present disclosure is provided with: a receiving portion 11 that receives video taken by an image capturing apparatus provided in a mobile body; a first calculation portion 13 that calculates first moving-object scores based on a motion of one or more pixels of image included in the video; a second calculation portion 15 that calculates second moving-object scores based on a background model and the image, wherein the background model is updated based on the image and the motions of the pixels; and a detection portion 16 that detects a moving object from the image based on the first scores and the second scores.
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