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公开(公告)号：US20220215582A1
公开(公告)日：2022-07-07
申请号：US17704290
申请日：2022-03-25
Inventor： Taro IMAGAWA , Akihiro NODA , Yuki MARUYAMA , Hiroya KUSAKA
Abstract: A conversion parameter calculation method includes: obtaining, from a first image capturing device, first image data obtained by the first image capturing device capturing an image of an object; obtaining, from a second image capturing device, second distance data indicating a distance to the object, and second image data obtained by the second image capturing device capturing an image of the object; obtaining displacement direction information indicating a direction of a displacement of the object in three dimensions; associating positions on the object in the first image data and the second image data; estimating a position of the first image capturing device; calculating first distance data indicating a distance from the first image capturing device to the object; and calculating a conversion parameter for converting a pixel displacement amount of the object into the actual displacement amount, using the first distance data and the displacement direction information.
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2.发明申请公开(公告)号：US20170124683A1
公开(公告)日：2017-05-04
申请号：US15409334
申请日：2017-01-18
Inventor： Taro IMAGAWA , Hiroya KUSAKA
CPC classification number: G06T3/4076 , G06T3/4053 , G06T5/003 , H04N1/3876 , H04N1/393 , H04N5/2256 , H04N5/23232
Abstract: A super-resolution processing method for increasing a resolution of a captured image includes: irradiating a subject with a patterned light beam having a spatiotemporal resolution higher than a spatiotemporal resolution of the captured image, the spatiotemporal resolution being at least one of spatial resolution and temporal resolution; generating the captured image by capturing an image of the subject irradiated with the patterned light beam; and generating a high-resolution image having a spatiotemporal resolution higher than the spatiotemporal resolution of the captured image, using the captured image.
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公开(公告)号：US20220205776A1
公开(公告)日：2022-06-30
申请号：US17699418
申请日：2022-03-21
Inventor： Akihiro NODA , Taro IMAGAWA , Yuki MARUYAMA , Hiroya KUSAKA
Abstract: A conversion parameter calculation method includes: obtaining, from an image capturing device, image data obtained by the image capturing device capturing an image of an object having attached thereto a marker with which specific coordinates are detectable; obtaining displacement direction information indicating a direction of a displacement of the object, the direction crossing an image capturing surface of the image capturing device; detecting specific coordinates, based on the marker included in the image data; estimating a position of the image capturing device, based on a result of the detection; calculating distance data indicating a distance from the image capturing device to the object, based on the position of the image capturing device; and calculating, using the distance data and the displacement direction information, a conversion parameter for converting a pixel displacement amount of the object into an actual displacement amount.
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公开(公告)号：US20210099718A1
公开(公告)日：2021-04-01
申请号：US17120900
申请日：2020-12-14
Inventor： Yuki MARUYAMA , Hiroya KUSAKA , Taro IMAGAWA , Akihiro NODA
IPC: H04N19/167 , H04N19/543 , H04N19/176
Abstract: An encoding device that compression-encodes a plurality of images to measure local displacement of the structure includes: a determiner that determines, as a first region in the plurality of images to be used to measure local displacement of the structure; and an encoder that encodes the first region using a first parameter and encodes a second region different from the first region using a second parameter. The first parameter is a coding parameter yielding less loss of image information due to lossy compression than the second parameter.
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公开(公告)号：US20200041394A1
公开(公告)日：2020-02-06
申请号：US16597362
申请日：2019-10-09
Inventor： Taro IMAGAWA , Akihiro NODA , Hiroya KUSAKA
Abstract: A rigidity measurement apparatus is a rigidity measurement apparatus that measures rigidity of an object to be measured and includes a load estimator, a displacement calculator, and a rigidity calculator. The load estimator estimates a load applied to a measurement point set on the object to be measured by using a captured image of the object to be measured. The displacement calculator calculates a displacement of the measurement point by using the captured image. The rigidity calculator calculates the rigidity of the object to be measured by using the load and the displacement.
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Patent Agency Ranking
公开(公告)号：US20210116388A1
公开(公告)日：2021-04-22
申请号：US17136681
申请日：2020-12-29
Inventor： Yuki MARUYAMA , Hiroya KUSAKA , Taro IMAGAWA , Akihiro NODA
Abstract: A prediction device for predicting the growth direction of a crack that occurs in a subject includes: an obtainer that obtains video of the subject; a derivation unit that derives displacement of each of a plurality of regions in the obtained video; a selector that selects, from among the plurality of regions, two or more regions each having displacement similar to displacement of a reference region included in the plurality of regions; and an identification unit that identifies, as the growth direction, the longitudinal direction of a collective region made up of the two or more selected regions.
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公开(公告)号：US20210104035A1
公开(公告)日：2021-04-08
申请号：US17126655
申请日：2020-12-18
Inventor： Yuki MARUYAMA , Hiroya KUSAKA , Taro IMAGAWA , Akihiro NODA
Abstract: An inspection device includes: an obtainer that obtains at least one captured image of a plurality of sound insulation plates; a deriver that derives a displacement of each of the plurality of sound insulation plates in the image; and an extractor that, based on the displacements of the plurality of sound insulation plates, extracts, from the plurality of sound insulation plates, a sound insulation plate of interest that moves differently from another sound insulation plate included in the plurality of sound insulation plates.
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公开(公告)号：US20210104032A1
公开(公告)日：2021-04-08
申请号：US17126727
申请日：2020-12-18
Inventor： Akihiro NODA , Taro IMAGAWA , Hiroya KUSAKA , Yuki MARUYAMA
Abstract: A displacement measurement device includes: a first machine learning model trained to generate, from one image which contains a subject and has noise, at least one image which contains the subject and which has noise or has had noise removed; a first obtainer that obtains a first image which contains the subject and has noise and a second image which contains the subject and has noise; a first generator that, using the first machine learning model, generates M template images containing the subject from the first image and generates M target images containing the subject from the second image, M being an integer of 2 or higher; a hypothetical displacement calculator that calculates M hypothetical displacements of the subject from the M template images and the M target images; and a displacement calculator that calculates a displacement of the subject by performing statistical processing on the M hypothetical displacements.
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公开(公告)号：US20200378900A1
公开(公告)日：2020-12-03
申请号：US16996393
申请日：2020-08-18
Inventor： Taro IMAGAWA , Hiroya KUSAKA , Akihiro NODA
Abstract: An inspection device that inspects a structure with a crack, including: an obtainer that obtains images of the structure captured at mutually different times while the structure is subjected to varying loads; a crack detector that detects a crack on a surface of the structure in each image; a motion estimator that divides each image into blocks having a predetermined size, and derives motion vectors of the blocks based on a positional relation between a position of each block relative to a reference in a first image and a position of each block relative to the reference in a second image, the reference being a tip of the crack detected, the first and second images being included in the images; and an inspector that determines safety of the structure based on a difference between ones of the motion vectors of symmetric positions with respect to the crack.
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10.发明公开公开(公告)号：US20230252650A1
公开(公告)日：2023-08-10
申请号：US18134256
申请日：2023-04-13
Inventor： Taro IMAGAWA , Yuki MARUYAMA , Hiroya KUSAKA
IPC: G06T7/246
CPC classification number: G06T7/248 , G06T2207/30184
Abstract: An information processing method includes: obtaining training images generated by a camera shooting a target point and training parameters related to a position/orientation of the camera when shooting the training images; generating, using the training parameters as inputs, a model that outputs a first displacement amount by which a target block corresponding to the target point displaces from a reference position in the training images; obtaining measurement images generated by the camera shooting the target point and measurement parameters related to the position/orientation of the camera when shooting the measurement images; obtaining a second displacement amount, output by inputting the measurement parameters into the model, by which a target block corresponding to the target point appearing in the measurement images displaces from a reference position in the measurement images; and outputting a displacement obtained by subtracting the second displacement amount from displacement of the target block in the measurement images.
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