公开(公告)号：US20130011040A1

公开(公告)日：2013-01-10

申请号：US13635189

申请日：2011-02-23

申请人： Kazuhiro Kido ,  Chiho Makifuchi ,  Junko Kiyohara

发明人： Kazuhiro Kido ,  Chiho Makifuchi ,  Junko Kiyohara

IPC分类号： G06K9/00

CPC分类号： G01N23/04 ,  A61B6/4283 ,  A61B6/4291 ,  A61B6/4423 ,  A61B6/484 ,  A61B6/50 ,  A61B6/548 ,  G01N2223/406 ,  G01N2223/612 ,  G21K2207/005

摘要： Disclosed in an x-ray imaging device, which uses a Talbot-Lau interferometer, eliminates the effects on image quality of a reconstructed image that arises in such cases as when the direction of a multi-slit or each lattice slit is altered and imaging is performed, and provides reconstructed images favorable for diagnosis. When a plurality of moire images imaged with an imaging subject loaded onto a imaging subject stand (13) and a plurality of moire images imaged without the imaging subject are input, a control unit (51) of a controller (5) corrects signal value differences arising from variations in x-ray strength during imaging respectively between the plurality of moire images with the imaging subject and between the plurality of moire images without the imaging subject, and respectively creates a reconstructed image with the imaging subject and a reconstructed image without the imaging subject. Then, the control unit (51) creates a reconstructed image of the imaging subject for diagnosis by correcting, on the basis of the reconstructed image without the imaging subject, image unevenness in the reconstructed image with the imaging subject caused by heterogeneity in light distribution caused by the angle of rotation of the multi-slit.

摘要翻译： 在使用Talbot-Lau干涉仪的x射线成像装置中公开的消除了在诸如多狭缝或每个格子狭缝的方向被改变并且成像是的情况下产生的重建图像的图像质量的影响 并提供有利于诊断的重建图像。 当输入加载到成像对象支架（13）上的成像对象成像的多个莫尔条纹图像和没有成像对象成像的多个莫尔图像时，控制器（5）的控制单元（51）将信号值差异 由成像对象的多个莫尔图像之间以及在没有成像对象的多个莫尔图像之间的成像期间的X射线强度的变化引起的，并且分别使用成像对象和没有成像的重建图像来创建重建图像 学科。 然后，控制单元（51）通过基于没有成像对象的重建图像来校正由于分布不均匀引起的成像对象的重建图像中的图像不均匀而创建用于诊断的成像对象的重建图像 通过多缝的旋转角度。

公开(公告)号：US08989474B2

公开(公告)日：2015-03-24

申请号：US13635189

申请日：2011-02-23

申请人： Kazuhiro Kido ,  Chiho Makifuchi ,  Junko Kiyohara

发明人： Kazuhiro Kido ,  Chiho Makifuchi ,  Junko Kiyohara

IPC分类号： G06K9/00 ,  G01N23/04 ,  A61B6/00

CPC分类号： G01N23/04 ,  A61B6/4283 ,  A61B6/4291 ,  A61B6/4423 ,  A61B6/484 ,  A61B6/50 ,  A61B6/548 ,  G01N2223/406 ,  G01N2223/612 ,  G21K2207/005

摘要： Disclosed in an x-ray imaging device, which uses a Talbot-Lau interferometer, eliminates the effects on image quality of a reconstructed image that arises in such cases as when the direction of a multi-slit or each lattice slit is altered and imaging is performed, and provides reconstructed images favorable for diagnosis. When a plurality of moire images imaged with an imaging subject loaded onto a imaging subject stand (13) and a plurality of moire images imaged without the imaging subject are input, a control unit (51) of a controller (5) corrects signal value differences arising from variations in x-ray strength during imaging respectively between the plurality of moire images with the imaging subject and between the plurality of moire images without the imaging subject, and respectively creates a reconstructed image with the imaging subject and a reconstructed image without the imaging subject. Then, the control unit (51) creates a reconstructed image of the imaging subject for diagnosis by correcting, on the basis of the reconstructed image without the imaging subject, image unevenness in the reconstructed image with the imaging subject caused by heterogeneity in light distribution caused by the angle of rotation of the multi-slit.

摘要翻译： 在使用Talbot-Lau干涉仪的x射线成像装置中公开的消除了在诸如多狭缝或每个格子狭缝的方向被改变并且成像是的情况下产生的重建图像的图像质量的影响 并提供有利于诊断的重建图像。 当输入加载到成像对象支架（13）上的成像对象成像的多个莫尔条纹图像和没有成像对象成像的多个莫尔图像时，控制器（5）的控制单元（51）将信号值差异 由成像对象的多个莫尔图像之间以及在没有成像对象的多个莫尔图像之间的成像期间的X射线强度的变化引起的，并且分别使用成像对象和没有成像的重建图像来创建重建图像 学科。 然后，控制单元（51）通过基于没有成像对象的重建图像来校正由于分布不均匀引起的成像对象的重建图像中的图像不均匀而创建用于诊断的成像对象的重建图像 通过多缝的旋转角度。

公开(公告)号：US09025725B2

公开(公告)日：2015-05-05

申请号：US13394862

申请日：2010-03-10

申请人： Junko Kiyohara ,  Kazuhiro Kido ,  Chiho Makifuchi

发明人： Junko Kiyohara ,  Kazuhiro Kido ,  Chiho Makifuchi

IPC分类号： G01N23/04 ,  A61B6/06 ,  A61B6/00 ,  A61B6/04

CPC分类号： G01N23/04 ,  A61B6/0457 ,  A61B6/06 ,  A61B6/4291 ,  A61B6/484 ,  G21K2207/005

摘要： The apparatus includes: an X-ray source a multi slits element a first grating; a second grating; a driving section; a subject placing plate: and an X-ray detector, in which conversion elements to convert intensities of X-rays received thereby to electric signals, are arranged in a two-dimensional pattern so as to read the electric signals as image signals. The driving section moves the multi slits element relative to both the first grating and the second grating in a first direction orthogonal to a second direction of irradiating the X-rays, so that the X-ray detector repeats a processing for reading the electric signals converted from the intensities of X-rays received thereby, every time when the multi slits element moves at predetermined intervals so as to acquire the image signals representing Moire images captured at the predetermined intervals.

摘要翻译： 该装置包括：X射线源，多缝隙元件，第一光栅; 第二光栅; 驾驶部分 被摄体放置板和X射线检测器，其中将从其接收的X射线的强度转换为电信号的转换元件以二维图案排列，以将电信号读取为图像信号。 驱动部在与照射X射线的第二方向正交的第一方向上相对于第一光栅和第二光栅移动多缝隙元件，使得X射线检测器重复读取转换的电信号的处理 每当多缝隙元件以预定间隔移动时，从其所接收的X射线的强度，获得表示以预定间隔拍摄的莫尔图像的图像信号。

公开(公告)号：US20120224670A1

公开(公告)日：2012-09-06

申请号：US13394862

申请日：2010-03-10

申请人： Junko Kiyohara ,  Kazuhiro Kido ,  Chiho Makifuchi

发明人： Junko Kiyohara ,  Kazuhiro Kido ,  Chiho Makifuchi

IPC分类号： G01N23/04

CPC分类号： G01N23/04 ,  A61B6/0457 ,  A61B6/06 ,  A61B6/4291 ,  A61B6/484 ,  G21K2207/005

摘要： Disclosed is a novel X-ray image capturing apparatus to which the Talbot-Lau interferometer is applied. The apparatus includes: an X-ray source a multi slits element a first grating; a second grating; a driving section; a subject placing plate: and an X-ray detector, in which conversion elements to convert intensities of X-rays received thereby to electric signals, are arranged in a two-dimensional pattern so as to read the electric signals as image signals. The driving section moves the multi slits element relative to both the first grating and the second grating in a first direction orthogonal to a second direction of irradiating the X-rays, so that the X-ray detector repeats a processing for reading the electric signals converted from the intensities of X-rays received thereby, every time when the multi slits element moves at predetermined intervals so as to acquire the image signals representing Moire images captured at the predetermined intervals.

摘要翻译： 公开了应用Talbot-Lau干涉仪的新型X射线摄像装置。 该装置包括：X射线源，多缝隙元件，第一光栅; 第二光栅; 驾驶部分 被摄体放置板和X射线检测器，其中将从其接收的X射线的强度转换为电信号的转换元件以二维图案排列，以将电信号读取为图像信号。 驱动部在与照射X射线的第二方向正交的第一方向上相对于第一光栅和第二光栅移动多缝隙元件，使得X射线检测器重复读取转换的电信号的处理 每当多缝隙元件以预定间隔移动时，从其所接收的X射线的强度，获得表示以预定间隔拍摄的莫尔图像的图像信号。