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公开(公告)号：US20160140708A1
公开(公告)日：2016-05-19
申请号：US15001728
申请日：2016-01-20
Applicant: FUJIFILM Corporation
Inventor： Keigo NAKAMURA , Tomoyuki TAKAHASHI
CPC classification number: G06T7/0012 , A61B6/5205 , G06K9/4642 , G06T5/007 , G06T5/009 , G06T5/40 , G06T7/136 , G06T2207/10116 , G06T2207/20044 , G06T2207/20076 , G06T2207/20081 , G06T2207/30008 , G06T2207/30061 , G06T2207/30092 , G06T2207/30244
Abstract: A feature amount calculation unit calculates, based on a radiation image acquired by irradiating a photographic subject with radiation, a feature amount of a density of the radiation image. A target density calculation unit calculates, based on the radiation image, a target density for converting the feature amount. An image processing unit performs image processing including gradation processing on the radiation image, such that the feature amount becomes the target density, to acquire a processed radiation image.
Abstract translation: 特征量计算单元基于通过用放射线照射被摄体而获得的放射线图像计算辐射图像的密度的特征量。 目标密度计算单元基于放射线图像计算用于转换特征量的目标密度。 图像处理单元执行包括对放射线图像的灰度处理的图像处理，使得特征量成为目标浓度，以获得经处理的辐射图像。
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公开(公告)号：US20240081761A1
公开(公告)日：2024-03-14
申请号：US18452493
申请日：2023-08-18
Applicant: FUJIFILM Corporation
Inventor： Tomoyuki TAKAHASHI
CPC classification number: A61B6/505 , A61B5/4509 , A61B6/5205 , A61B6/5252 , G06T2207/30008
Abstract: A processor, specifies a target bone, which is a target of evaluation, by excluding a fracture and an artificial object in a bone part image in which at least a bone component of a subject is extracted, and derives an evaluation result indicating a state of a bone of the subject based on the target bone.
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公开(公告)号：US20230102862A1
公开(公告)日：2023-03-30
申请号：US17822688
申请日：2022-08-26
Applicant: FUJIFILM Corporation
Inventor： Tomoyuki TAKAHASHI
Abstract: A fat mass derivation device includes at least one processor, in which the processor derives a fat mass distribution of a subject from a first radiation image and a second radiation image acquired by imaging the subject with radiation having different energy distributions, and derives a visceral fat mass distribution of the subject based on a shape of the fat mass distribution in a cross section orthogonal to a body axis of the subject.
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公开(公告)号：US20220036519A1
公开(公告)日：2022-02-03
申请号：US17387480
申请日：2021-07-28
Applicant: FUJIFILM Corporation
Inventor： Tomoyuki TAKAHASHI
Abstract: A processor acquires a first radiographic image and a second radiographic image that include the same subject and have different S/N ratios. The processor derives a processing content of a first graininess suppression process on the first radiographic image having a higher S/N ratio of the first radiographic image and the second radiographic image and derives a processing content of a second graininess suppression process on the second radiographic image on the basis of the processing content of the first graininess suppression process. The processor performs a graininess suppression process on the second radiographic image on the basis of the processing content of the second graininess suppression process.
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Patent Agency Ranking
公开(公告)号：US20160148355A1
公开(公告)日：2016-05-26
申请号：US15001411
申请日：2016-01-20
Applicant: FUJIFILM Corporation
Inventor： Keigo NAKAMURA , Tomoyuki TAKAHASHI
CPC classification number: G06T5/008 , A61B6/032 , A61B6/4233 , A61B6/505 , A61B6/5217 , A61B6/542 , G06T7/0012 , G06T2207/10116 , G06T2207/30008
Abstract: Feature amount calculation unit determines that the diagnosis target is a bone portion of a subject, and calculates a feature amount of a density of the radiation image based on a soft region in a radiation image acquired by irradiating a photographic subject with radiation. An image processing unit performs image processing including gradation processing on the radiation image, such that the feature amount becomes the target density, to acquire a processed radiation image.
Abstract translation: 特征量计算单元确定诊断目标是对象的骨骼部分，并且通过用辐射照射被摄体获取的放射线图像中的软区域来计算放射线图像的浓度的特征量。 图像处理单元执行包括对放射线图像的灰度处理的图像处理，使得特征量成为目标浓度，以获得经处理的辐射图像。
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16.发明申请公开(公告)号：US20250095153A1
公开(公告)日：2025-03-20
申请号：US18887040
申请日：2024-09-17
Applicant: FUJIFILM CORPORATION
Inventor： Tomoyuki TAKAHASHI
Abstract: A processor acquires first and second radiation images for a subject, which includes a first component of a plurality of compositions and a second component of a single composition, derives an initial second component image based on the first and second radiation images, specifies first and second component regions in the radiation images based on the initial second component image, derives a characteristic of the first component related to attenuation of the radiation based on the radiation images in the first component region, derives the characteristic of the first component in the second component region in the first or second radiation image based on the characteristic of the first component in the first component region around the second component region, and derives first and second component images in which the first and second components are emphasized, respectively, based on the characteristic of the first component.
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公开(公告)号：US20230093849A1
公开(公告)日：2023-03-30
申请号：US17898157
申请日：2022-08-29
Applicant: FUJIFILM Corporation
Inventor： Tomoyuki TAKAHASHI
Abstract: A processor derives a bone part image of a subject including a bone part from a first radiation image and a second radiation image acquired by imaging the subject with radiation having different energy distributions, derives a bone density image representing bone density in a bone region of the subject from the bone part image, derives a trabecula image representing a trabecula structure from the first radiation image, the second radiation image, or the bone part image, and superimposes the trabecula image on the bone density image to display the trabecula image and the bone density image.
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公开(公告)号：US20200305829A1
公开(公告)日：2020-10-01
申请号：US16831713
申请日：2020-03-26
Applicant: FUJIFILM Corporation
Inventor： Tomoyuki TAKAHASHI
Abstract: A region detection image is obtained by the detection of a subject region of a radiographic image in which radiation is transmitted through a subject and reaches a radiation detection unit and a direct radiation region of the radiographic image in which the radiation directly reaches the radiation detection unit without being transmitted through the subject. A scattered radiation image about scattered radiation components is obtained on the basis of the region detection image and scattered-radiation-spread information about the spread of scattered radiation. A radiographic image from which the scattered radiation components have been removed is obtained by the subtraction of the scattered radiation image from the radiographic image.
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公开(公告)号：US20160210744A1
公开(公告)日：2016-07-21
申请号：US15082124
申请日：2016-03-28
Applicant: FUJIFILM Corporation
Inventor： Keigo NAKAMURA , Tomoyuki TAKAHASHI
CPC classification number: G06T7/0012 , A61B6/5211 , G06T5/009 , G06T5/40 , G06T2207/10116 , H04N1/4074 , H04N19/12 , H04N19/167 , H04N19/17 , H04N19/172 , H04N19/98
Abstract: A first concentration range, which is a concentration range of a region of interest, and an output concentration range are determined in an input image. A compression table for compressing a dynamic range of the input image is generated on the basis of the first concentration range and the output concentration range. The first concentration range is changed at a predetermined ratio with respect to the changed output concentration range to determine a second concentration range. A new compression table is generated on the basis of the changed output concentration range and the second concentration range. The dynamic range of the input image is compressed using the new compression table.
Abstract translation: 在输入图像中确定作为感兴趣区域的浓度范围的第一浓度范围和输出浓度范围。 基于第一浓度范围和输出浓度范围生成用于压缩输入图像的动态范围的压缩表。 第一浓度范围相对于改变的输出浓度范围以预定比率改变，以确定第二浓度范围。 基于改变的输出浓度范围和第二浓度范围生成新的压缩表。 使用新的压缩表压缩输入图像的动态范围。
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