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公开(公告)号：US11357455B2
公开(公告)日：2022-06-14
申请号：US16778037
申请日：2020-01-31
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takeshi Noda , Yoshihito Machida
IPC: A61B6/03 , G01N23/04 , G01N23/083 , G06T5/00 , G06T5/50 , G01N23/046 , A61B6/00
Abstract: An information processing apparatus comprises: an obtainment unit configured to obtain a radiation image of a subject; a generation unit configured to generate, based on a plurality of radiation images obtained by radiation of mutually different spectra, a material characteristic image in which a region for each material can be extracted from the interior of the subject; and an image processing unit configured to perform processing of enhancing or attenuating, based on a position of a specific region in the material characteristic image, the specific region in the radiation image.
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公开(公告)号：US20210158105A1
公开(公告)日：2021-05-27
申请号：US17163888
申请日：2021-02-01
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshihito Machida , Yoshinori Hirano , Hideaki Miyamoto , Daisuke Yamada
Abstract: A medical information processing apparatus comprises an obtaining unit that obtains medical information, a learning unit that performs learning on a function of the medical information processing apparatus using the medical information, an evaluation data holding unit that holds evaluation data in which a correct answer to be obtained by executing the function is known, the evaluation data being for evaluating a learning result of the learning unit, an evaluating unit that evaluates a learning result obtained through learning, based on the evaluation data, and an accepting unit that accepts an instruction to apply a learning result of the learning unit to the function.
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公开(公告)号：US10713784B2
公开(公告)日：2020-07-14
申请号：US15771033
申请日：2016-10-24
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshihito Machida , Takeshi Noda
Abstract: To provide a technique of obtaining information for discriminating two substances included in a radiation image of a subject without performing imaging by changing radiation energy, a radiation imaging system includes a detector including a plurality of pixels which obtain pixel values corresponding to incident radiation transmitted through a subject, and an information processing unit configured to perform a process of estimating information on thicknesses and densities of substances included in the subject by performing a calculation using pixel values of an arbitrary one of the plurality of pixels and an average value of energy of radiation quanta of the arbitrary pixel calculated in accordance with the pixel values of the arbitrary pixel.
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公开(公告)号：US20190076108A1
公开(公告)日：2019-03-14
申请号：US16122167
申请日：2018-09-05
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshihito Machida
Abstract: A breast imaging apparatus obtains tomographic images of the breast of an object. The apparatus includes an obtaining unit configured to obtain imaging conditions when the tomographic images are obtained, a generating unit configured to generate a breast model including a specific tissue with respect to the breast of the object, and a calculating unit configured to calculate the dose of radiation absorbed by the specific tissue by a radiation imaging simulation using the imaging conditions and the breast model.
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公开(公告)号：US20180325476A1
公开(公告)日：2018-11-15
申请号：US15771058
申请日：2016-10-24
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshihito Machida , Atsushi Iwashita
IPC: A61B6/00
CPC classification number: A61B6/4241 , A61B6/12 , A61B6/4266 , A61B6/4283 , A61B6/481 , A61B6/482 , A61B6/505 , A61B6/5205 , A61B6/5217 , A61B6/544 , A61B6/563 , G01T7/00
Abstract: A radiation imaging system includes a detector including a plurality of pixels which obtain pixel values corresponding to incident radiation transmitted through a subject, and an information processing unit configured to perform a process of estimating information on thicknesses of substances included in the subject using pixel values of an arbitrary one of the plurality of pixels, an average value of energy of radiation quanta of the arbitrary pixel calculated in accordance with the pixel values of the arbitrary pixel, a first table indicating the relationship between the pixel values of the arbitrary pixel and the thicknesses of the substances included in the subject, and a second table indicating the relationship between the average value of the energy of the radiation quanta of the arbitrary pixel and the thicknesses of the substances included in the subject.
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Patent Agency Ranking
公开(公告)号：US20160270750A1
公开(公告)日：2016-09-22
申请号：US15034795
申请日：2014-10-30
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshihito Machida
IPC: A61B6/00
Abstract: The present invention includes amount-of-change specifying means that specifies, among a plurality of pieces of image data generated by detection means in accordance with a detection result of radiated rays that have passed through a subject, the amount of change in a relative position of the subject with respect to the detection means during a period from a generation timing of immediately preceding image data, which is generated immediately before target image data, to a generation timing of the target image data, amount-of-radiated-rays setting means that sets the amount of radiated rays with which irradiation means performs irradiation in accordance with the amount of change, composition ratio determination means that determines a composition ratio in accordance with the amount of change, and noise reduction means that reduces noise of the target image data by combining, in accordance with the composition ratio, image data generated before the target image data with the target image data.
Abstract translation: 本发明包括变化量指定装置，其根据检测装置根据已经通过被摄体的辐射线的检测结果生成的多个图像数据中指定相对位置的变化量 在从紧接在目标图像数据之前生成的紧接在前的图像数据的生成定时到目标图像数据的生成定时的期间内的检测装置的受检者的数量，放射线设定装置 其根据变化量设定照射单元进行照射的照射光量，根据变化量决定组成比的组成比判定单元，以及降低目标图像数据的噪声的降噪单元 通过根据组成比将目标图像数据之前产生的图像数据与目标图像进行组合 e数据。
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公开(公告)号：US10736591B2
公开(公告)日：2020-08-11
申请号：US15034795
申请日：2014-10-30
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshihito Machida
Abstract: A control device includes a unit that specifies, among a plurality of pieces of image data generated by detection means in accordance with a detection result of radiated rays that have passed through a subject, the amount of change in a relative position of the subject with respect to the detection means during a period from a generation timing of immediately preceding image data, which is generated immediately before target image data, to a generation timing of the target image data, a unit that sets the amount of radiated rays with which irradiation means performs irradiation in accordance with the amount of change, a unit that determines a composition ratio in accordance with the amount of change, and a unit that reduces noise of the target image data by combining, in accordance with the composition ratio, image data generated before the target image data with the target image data.
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公开(公告)号：US20180308233A1
公开(公告)日：2018-10-25
申请号：US15771033
申请日：2016-10-24
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshihito Machida , Takeshi Noda
Abstract: To provide a technique of obtaining information for discriminating two substances included in a radiation image of a subject without performing imaging by changing radiation energy, a radiation imaging system includes a detector including a plurality of pixels which obtain pixel values corresponding to incident radiation transmitted through a subject, and an information processing unit configured to perform a process of estimating information on thicknesses and densities of substances included in the subject by performing a calculation using pixel values of an arbitrary one of the plurality of pixels and an average value of energy of radiation quanta of the arbitrary pixel calculated in accordance with the pixel values of the arbitrary pixel.
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公开(公告)号：US10092264B2
公开(公告)日：2018-10-09
申请号：US15228240
申请日：2016-08-04
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshihito Machida , Tetsuo Shimada , Osamu Tsujii , Akira Yoshino , Maiko Sato , Hidehiko Morinaga
Abstract: An image processing apparatus obtains a three-dimensional radiation image of a right region of substantially symmetrical regions, obtains a three-dimensional radiation image of a left region of the substantially symmetrical regions, performs alignment between the three-dimensional radiation image of the right region and the three-dimensional radiation image of the left region based on a feature position of the regions, and substantially symmetrically arranges and displays the three-dimensional radiation image of the right region and the three-dimensional radiation image of the left region which have been aligned.
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10.发明申请IMAGE RECONSTRUCTING APPARATUS, IMAGE RECONSTRUCTING METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM 有权图像重构装置，图像重构方法以及非终端计算机可读存储介质公开(公告)号：US20160179346A1
公开(公告)日：2016-06-23
申请号：US14969532
申请日：2015-12-15
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshihito Machida
IPC: G06F3/0484 , G06K9/46 , G06T7/00
CPC classification number: A61B8/5207 , A61B5/0073 , G06K9/00798 , G06K9/00818 , G06T7/0012 , G06T7/55 , G06T2207/10124 , G06T2207/20092 , G06T2207/30168 , G06T2211/416 , G06T2211/421
Abstract: An image reconstructing apparatus creates a reconstructed image for every calculation operation by performing predetermined repetitive calculation by iterative reconstruction for a plurality of images obtained by acquiring an object from different angles, extracts at least one reconstructed image under a predetermined condition from the created reconstructed images, displays on a display unit information corresponding to the extracted reconstructed images and information corresponding to the extracted reconstructed image, selects at least one reconstructed image in accordance with an instruction of an operator on the display unit, and outputs the selected reconstructed image.
Abstract translation: 图像重建装置通过对通过从不同角度获取对象而获得的多个图像进行迭代重建来执行预定重复计算，从而从所创建的重建图像中提取至少一个预定条件下的重建图像，从而为每个计算操作创建重建图像， 在显示单元上显示与所提取的重建图像相对应的信息和与提取的重建图像相对应的信息，根据操作者在显示单元上的指令选择至少一个重建图像，并输出所选择的重建图像。
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