公开(公告)号：US20100266181A1

公开(公告)日：2010-10-21

申请号：US12741071

申请日：2009-04-30

申请人： Steven Oeckl ,  Theobald Fuchs ,  Tobias Schoen

发明人： Steven Oeckl ,  Theobald Fuchs ,  Tobias Schoen

IPC分类号： G06K9/00 ,  A61B6/03

CPC分类号： G01N23/046 ,  G01N2223/419 ,  G06T11/006 ,  G06T2211/432

摘要： A CT reconstruction of an object including a high-resolution object region of interest may be produced in an artefact-free manner by producing a first projection data set of a first region of the object that encloses the object region of interest and includes at least one projection recording of a first resolution, and a second projection data set of the object region of interest including at least a second projection recording of a second, higher resolution. The first and second projection data sets may be combined, in accordance with a combination rule, so as to obtain a CT reconstruction of the first region of the object having the first resolution and of the object region of interest having the second, higher resolution.

摘要翻译： 包括感兴趣的高分辨率对象区域的对象的CT重构可以通过产生包围感兴趣对象区域的对象的第一区域的第一投影数据集，并且包括至少一个 第一分辨率的投影记录以及所述感兴趣对象区域的第二投影数据组包括至少第二高分辨率的第二投影记录。 可以根据组合规则组合第一和第二投影数据集，以获得具有第一分辨率的对象的第一区域和具有第二较高分辨率的感兴趣对象区域的CT重建。

公开(公告)号：US08345817B2

公开(公告)日：2013-01-01

申请号：US12937229

申请日：2009-04-09

申请人： Theobald Fuchs ,  Tobias Schoen ,  Randolf Hanke

发明人： Theobald Fuchs ,  Tobias Schoen ,  Randolf Hanke

IPC分类号： A61B6/00

CPC分类号： G01N23/046 ,  A61B6/032 ,  G01N2223/419 ,  G06T11/006 ,  G06T2211/436

摘要： A multi-dimensional representation of an object is obtained in that first and second pictures of the object illuminated using an X-ray source are created using a sensor that is located, in relation to the X-ray source, behind the object in a preferential direction defined by the relative positions of the object and of the sensor. A distance in the preferential direction between the X-ray source and the object is different in the first picture than in the second picture. The multi-dimensional representation of the object is obtained by combining the first and second pictures.

摘要翻译： 获得对象的多维表示是使用使用X射线源照亮的对象的第一和第二图像使用相对于X射线源位于对象的优先位置的传感器来创建的， 方向由物体和传感器的相对位置限定。 在X射线源和物体之间的优先方向上的距离在第一图像中与第二图像不同。 通过组合第一和第二图像来获得对象的多维表示。

公开(公告)号：US20110110487A1

公开(公告)日：2011-05-12

申请号：US12937229

申请日：2009-04-09

申请人： Theobald Fuchs ,  Tobias Schoen ,  Randolf Hanke

发明人： Theobald Fuchs ,  Tobias Schoen ,  Randolf Hanke

IPC分类号： A61B6/03

CPC分类号： G01N23/046 ,  A61B6/032 ,  G01N2223/419 ,  G06T11/006 ,  G06T2211/436

摘要： A multi-dimensional representation of an object is obtained in that first and second pictures of the object illuminated using an X-ray source are created using a sensor that is located, in relation to the X-ray source, behind the object in a preferential direction defined by the relative positions of the object and of the sensor. A distance in the preferential direction between the X-ray source and the object is different in the first picture than in the second picture. The multi-dimensional representation of the object is obtained by combining the first and second pictures.

摘要翻译： 获得对象的多维表示是使用使用X射线源照亮的对象的第一和第二图像使用相对于X射线源位于对象的优先位置的传感器来创建的， 方向由物体和传感器的相对位置限定。 在X射线源和物体之间的优先方向上的距离在第一图像中与在第二图像中不同。 通过组合第一和第二图像来获得对象的多维表示。

公开(公告)号：US08184766B2

公开(公告)日：2012-05-22

申请号：US12918403

申请日：2009-02-25

申请人： Theobald Fuchs ,  Norman Uhlmann

发明人： Theobald Fuchs ,  Norman Uhlmann

IPC分类号： A61B6/00

CPC分类号： G01N23/046 ,  G01N2223/419

摘要： In an X-ray computer tomograph and a method for investigating an object by means of X-ray computer tomography, to improve the image quality, a first intensity of the X-ray radiation between an X-ray source and the object is measured by means of a first intensity measurement device (13) and a second intensity of the X-ray radiation between the object and the X-ray detector outside a projection region of the object is measured by means of a second intensity measurement device. A scattered radiation correction factor is calculable by means of the measured intensities to reduce the scattered radiation.

摘要翻译： 在X射线计算机断层摄影机和通过X射线计算机断层摄影术研究物体的方法中，为了提高图像质量，X射线源和物体之间的X射线辐射的第一强度通过 通过第二强度测量装置测量第一强度测量装置（13）的手段和物体的投影区域之外的物体与X射线检测器之间的X射线辐射的第二强度。 散射辐射校正因子可以通过测量的强度计算，以减少散射辐射。

公开(公告)号：US08229061B2

公开(公告)日：2012-07-24

申请号：US12989590

申请日：2009-04-21

申请人： Randolf Hanke ,  Theobald Fuchs ,  Tobias Schön ,  Michael Maisl ,  Stefan Kasperl

发明人： Randolf Hanke ,  Theobald Fuchs ,  Tobias Schön ,  Michael Maisl ,  Stefan Kasperl

IPC分类号： A61B6/00

CPC分类号： G01N23/046 ,  A61B6/027 ,  G01N2223/419

摘要： In an X-ray computer tomograph and a method for examining a component by means of X-ray computer tomography, the component carries out a movement relative to a radiation source detector unit in at least two degrees of freedom of movement, so at least one trajectory can be produced which spans a three-dimensional space. Since the X-radiation has a three-dimensional radiation geometry, volume data can be rapidly obtained and precisely reconstructed to form a three-dimensional X-ray image. The component can be geometrically measured by means of a geometry detection unit.

摘要翻译： 在X射线计算机断层摄影机和通过X射线计算机断层摄影检查部件的方法中，该部件以至少两个运动自由度相对于辐射源检测器单元执行移动，因此至少一个 可以产生跨越三维空间的轨迹。 由于X射线具有三维辐射几何形状，因此可以快速获得体积数据并精确地重构以形成三维X射线图像。 组件可以通过几何检测单元进行几何测量。

公开(公告)号：US20110103546A1

公开(公告)日：2011-05-05

申请号：US12989590

申请日：2009-04-21

申请人： Randolf Hanke ,  Theobald Fuchs ,  Tobias Schön ,  Michael Maisl ,  Stefan Kasperl

发明人： Randolf Hanke ,  Theobald Fuchs ,  Tobias Schön ,  Michael Maisl ,  Stefan Kasperl

IPC分类号： A61B6/03 ,  G01N23/04

CPC分类号： G01N23/046 ,  A61B6/027 ,  G01N2223/419

摘要： In an X-ray computer tomograph and a method for examining a component by means of X-ray computer tomography, the component carries out a movement relative to a radiation source detector unit in at least two degrees of freedom of movement, so at least one trajectory can be produced which spans a three-dimensional space. Since the X-radiation has a three-dimensional radiation geometry, volume data can be rapidly obtained and precisely reconstructed to form a three-dimensional X-ray image. The component can be geometrically measured by means of a geometry detection unit.

摘要翻译： 在X射线计算机断层摄影机和通过X射线计算机断层摄影检查部件的方法中，该部件以至少两个运动自由度相对于辐射源检测器单元执行移动，因此至少一个 可以产生跨越三维空间的轨迹。 由于X射线具有三维辐射几何形状，因此可以快速获得体积数据并精确地重构以形成三维X射线图像。 组件可以通过几何检测单元进行几何测量。

公开(公告)号：US07109490B2

公开(公告)日：2006-09-19

申请号：US10488398

申请日：2002-08-21

申请人： Theobald Fuchs ,  Willi Kalender ,  Tillman Riess ,  Quirin Spreiter ,  Thomas von der Haar

发明人： Theobald Fuchs ,  Willi Kalender ,  Tillman Riess ,  Quirin Spreiter ,  Thomas von der Haar

IPC分类号： G01T1/20 ,  G01T1/166

CPC分类号： A61B6/586 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4021

摘要： A method is for restoring a signal of a defective channel of a beam detector, which has a multitude of channels and by means of which projections are recorded from different directions of projection. The channels of the beam detector each have a detector element with channel electronics connected downstream thereform. The signal of the defective channel is restored while using neighboring signals of an M-neighborhood of the same projection and from adjacent signals of an M-neighborhood of additional projections.

摘要翻译： 一种用于恢复具有多个通道的波束检测器的缺陷通道的信号的方法，并且借助于这些通道从不同的投影方向记录投影。 光束检测器的通道各自具有检测器元件，其通道电子器件连接在下游。 在使用相同投影的M邻域的相邻信号和附加投影的M邻域的相邻信号的同时恢复缺陷信道的信号。

公开(公告)号：US20100316183A1

公开(公告)日：2010-12-16

申请号：US12918403

申请日：2009-02-25

申请人： Theobald Fuchs ,  Norman Uhlmann

发明人： Theobald Fuchs ,  Norman Uhlmann

IPC分类号： G01N23/04

CPC分类号： G01N23/046 ,  G01N2223/419

摘要： In an X-ray computer tomograph and a method for investigating an object by means of X-ray computer tomography, to improve the image quality, a first intensity of the X-ray radiation between an X-ray source and the object is measured by means of a first intensity measurement device (13) and a second intensity of the X-ray radiation between the object and the X-ray detector outside a projection region of the object is measured by means of a second intensity measurement device. A scattered radiation correction factor is calculable by means of the measured intensities to reduce the scattered radiation.

摘要翻译： 在X射线计算机断层摄影机和通过X射线计算机断层摄影术研究物体的方法中，为了提高图像质量，X射线源和物体之间的X射线辐射的第一强度通过 通过第二强度测量装置测量第一强度测量装置（13）的手段和物体的投影区域之外的物体与X射线检测器之间的X射线辐射的第二强度。 散射辐射校正因子可以通过测量的强度计算，以减少散射辐射。