公开(公告)号：US09633480B2

公开(公告)日：2017-04-25

申请号：US14855540

申请日：2015-09-16

Applicant: FUJIFILM Corporation

Inventor： Jun Enomoto ,  Yasufumi Oda ,  Takashi Tajima ,  Takeshi Kuwabara ,  Daiki Harada ,  Yuichi Hosoi ,  Haruyasu Nakatsugawa

IPC: G06T7/60 ,  A61B6/00 ,  G06T19/00 ,  G06T11/60

CPC classification number: G06T19/006 ,  A61B6/5211 ,  A61B6/5282 ,  G06T7/62 ,  G06T11/008 ,  G06T11/60 ,  G06T2207/10116 ,  G06T2207/30061

Abstract: An image obtaining unit obtains a subject image, a body thickness distribution modifying unit receives input of a virtual model having an estimated body thickness distribution and modifies the estimated body thickness distribution of the virtual model to output the modified estimated body thickness distribution, and a body thickness distribution determining unit determines the outputted estimated body thickness distribution to be used as the body thickness distribution of the subject. The body thickness distribution determining unit includes a judging unit for switching, according to a judgment condition, between a first control under which the body thickness distribution modifying process is iteratively executed until a first termination condition is satisfied and a second control under which the body thickness distribution modifying process is iteratively executed until a second termination condition that is different from the first termination condition is satisfied so that the first control or the second control is executed.

公开(公告)号：US10321887B2

公开(公告)日：2019-06-18

申请号：US16040766

申请日：2018-07-20

Applicant: FUJIFILM Corporation

Inventor： Takashi Tajima ,  Jun Enomoto ,  Yasufumi Oda ,  Takeshi Kuwabara ,  Daiki Harada ,  Yuichi Hosoi ,  Haruyasu Nakatsugawa

IPC: A61B6/00

Abstract: In an image analysis device, an image analysis method, and a non-transitory computer-readable recording medium, it is determined whether a radiographic image is captured by rocking a rocking imaging grid. The image analysis device includes: a radiographic image acquisition section; a dosage data acquisition section that acquires dosage data indicating, in a time-series manner, a dosage of radiation rays exposed to a specific position in an imaging area in a specific period; and a determining section that determines whether the dosage data has a first feature indicating a dosage variation as a plurality of radiation absorbing bodies and a radiation transmitting body disposed between adjacent radiation absorbing bodies pass through a space between the specific position and a radiation source, and determines that the radiographic image corresponding to the dosage data determined to have the first feature is a rocking grid use image captured by rocking a rocking imaging grid.

公开(公告)号：US10154825B2

公开(公告)日：2018-12-18

申请号：US15050470

申请日：2016-02-23

Applicant: FUJIFILM CORPORATION

Inventor： Jun Enomoto ,  Takashi Tajima ,  Yasufumi Oda ,  Takeshi Kuwabara ,  Daiki Harada ,  Yuichi Hosoi ,  Haruyasu Nakatsugawa

IPC: G01N5/00 ,  G01N23/201 ,  A61B6/00 ,  A61B6/06

Abstract: The present disclosure provides an image processing device including: a scattered radiation correction data acquisition section that acquires scattered radiation correction data as a result of radiation being irradiated onto a radiographic imaging device that images a radiographic image; a pixel region acquisition section that acquires information indicating a size of an effective pixel region of the radiographic imaging device; an exposure range acquisition section that acquires information indicating an imaging exposure range of radiation for imaging an imaging subject with the radiographic imaging device; an image data acquisition section that acquires image data as a result of imaging a radiographic image of the imaging subject; and a correction section that corrects the image data acquired by the image data acquisition section using the scattered radiation correction data, in a case in which the imaging exposure range includes an area outside of the effective pixel region.

公开(公告)号：US10058301B2

公开(公告)日：2018-08-28

申请号：US14842992

申请日：2015-09-02

Applicant: FUJIFILM Corporation

Inventor： Takashi Tajima ,  Jun Enomoto ,  Yasufumi Oda ,  Takeshi Kuwabara ,  Daiki Harada ,  Yuichi Hosoi ,  Haruyasu Nakatsugawa

IPC: A61B6/00

CPC classification number: A61B6/5282 ,  A61B6/4291 ,  A61B6/5211 ,  A61B6/5264

Abstract: In an image analysis device, an image analysis method, and a non-transitory computer-readable recording medium, it is determined whether a radiographic image is captured by rocking a rocking imaging grid. The image analysis device includes: a radiographic image acquisition section; a dosage data acquisition section that acquires dosage data indicating, in a time-series manner, a dosage of radiation rays exposed to a specific position in an imaging area in a specific period; and a determining section that determines whether the dosage data has a first feature indicating a dosage variation as a plurality of radiation absorbing bodies and a radiation transmitting body disposed between adjacent radiation absorbing bodies pass through a space between the specific position and a radiation source, and determines that the radiographic image corresponding to the dosage data determined to have the first feature is a rocking grid use image captured by rocking a rocking imaging grid.

公开(公告)号：US10045746B2

公开(公告)日：2018-08-14

申请号：US14637522

申请日：2015-03-04

Applicant: FUJIFILM Corporation

Inventor： Takashi Tajima ,  Jun Enomoto ,  Yasufumi Oda ,  Takeshi Kuwabara ,  Daiki Harada ,  Yuichi Hosoi ,  Noriaki Ida ,  Naoyuki Nishino ,  Haruyasu Nakatsugawa

IPC: A61N5/10 ,  A61B6/00 ,  G06T5/00

Abstract: In a radiation image processing apparatus, method, and program, performing image processing based on scattered radiation, such as scattered radiation elimination processing, accurately by taking into account the influence of scattered radiation from an area adjacent to a processing target area. For this purpose, performing image processing on a radiation image captured by applying radiation to a subject based on scattered radiation generated by the subject. In this case, a processing target area which is the processing target in the radiation image is added with another area different from the processing target area in the radiation image. Then, the image processing based on scattered radiation is performed on the processing target area using the another area and the processing target area.

公开(公告)号：US09316750B2

公开(公告)日：2016-04-19

申请号：US14323051

申请日：2014-07-03

Applicant: FUJIFILM Corporation

Inventor： Yuichi Hosoi ,  Masaharu Nakatsu ,  Takafumi Hironaka ,  Hideyuki Noumura ,  Haruyasu Nakatsugawa

IPC: G01T1/20 ,  G21K4/00

CPC classification number: G01T1/2018 ,  G01T1/2008 ,  G01T1/2012 ,  G21K4/00

Abstract: A radiation image capturing system includes a radiation source and a radiation image detecting device. The radiation image detecting device includes a solid-state detector and a wavelength conversion layer disposed in this order from a radiation incident side. The wavelength conversion layer has a first phosphor layer having first phosphor particles dispersed in a binder, and a second phosphor layer having second phosphor particles dispersed in a binder. The average particle diameter of the second phosphor particles is smaller than that of the first phosphor particles. The first phosphor layer is disposed on the side of the solid-state detector relative to the second phosphor layer, and joined to or pressed against the solid-state detector. The first and second phosphor particles are distributed in the first and second phosphor layers, respectively, such that the weight of the binder per unit thickness is gradually decreased to the side of the solid-state detector.

Abstract translation: 辐射图像捕获系统包括辐射源和放射线图像检测装置。 放射线图像检测装置包括固体状态检测器和从辐射入射侧依次布置的波长转换层。 波长转换层具有第一荧光体层，其具有分散在粘合剂中的第一荧光体颗粒，以及具有分散在粘合剂中的第二荧光体颗粒的第二荧光体层。 第二荧光体粒子的平均粒径小于第一荧光体粒子的平均粒径。 第一荧光体层相对于第二荧光体层配置在固态检测器的一侧，并与固态检测器接合或压接。 第一和第二荧光体颗粒分别分布在第一和第二荧光体层中，使得每单位厚度的粘合剂的重量逐渐降低到固态检测器的侧面。