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1. 发明授权

US09498177B2 Contrast-dependent regularization strength in the iterative reconstruction of CT images 有权
标题翻译： CT图像迭代重建中的对比度依赖正则化强度
公开(公告)号：US09498177B2
公开(公告)日：2016-11-22
申请号：US12729272
申请日：2010-03-23
申请人： Herbert Bruder , Thomas Flohr , Rainer Raupach , Martin Sedlmair , Heinrich Wallschlager
发明人： Herbert Bruder , Thomas Flohr , Rainer Raupach , Martin Sedlmair , Heinrich Wallschlager
IPC分类号： G06K9/00 , A61B6/00 , A61B6/03 , G06T11/00
CPC分类号： A61B6/481 , A61B6/032 , A61B6/4014 , A61B6/4441 , A61B6/482 , A61B6/503 , A61B6/504 , A61B6/507 , A61B6/541 , G06T11/006 , G06T2211/424
摘要： A method is disclosed for reconstructing image data of an examination object from measured data, the measured data being captured during a rotating movement of a radiation source of a computed tomography system around the examination object. In at least one embodiment, different iteration images of the examination object are determined successively from the measured data by way of an iterative algorithm, wherein with the iterative algorithm the current iteration image at any one time is high-pass-filtered and weighted as a function of contrast using a variable which contains contrast information relating to the current iteration image at that time.
摘要翻译：公开了一种用于从测量数据重建检查对象的图像数据的方法，所测量的数据在计算机断层扫描系统的辐射源围绕检查对象的旋转运动期间被捕获。在至少一个实施例中，通过迭代算法从测量数据连续地确定检查对象的不同迭代图像，其中利用迭代算法，任何时间的当前迭代图像被高通滤波并加权为使用包含与当时的当前迭代图像有关的对比度信息的变量的对比度的功能。

2. 发明申请

US20050243422A1 Overlay device and computer tomography device comprising an emitter side overlay device 有权
标题翻译：覆盖装置和计算机断层摄影装置包括发射器侧覆盖装置
公开(公告)号：US20050243422A1
公开(公告)日：2005-11-03
申请号：US10529287
申请日：2003-09-15
申请人： Friedrich Distler , Karlheinz Pauli , Heinrich Wallschlager
发明人： Friedrich Distler , Karlheinz Pauli , Heinrich Wallschlager
IPC分类号： A61B6/06 , G21K1/02 , G21K1/04 , G02B5/18 , G02B27/44
CPC分类号： G21K1/025 , A61B6/06 , G21K1/04
摘要： A gating device to delimit an x-ray beam, said gating device comprising a device housing, first and second absorber elements mounted in said device housing opposite each other, an adjustment device connected to said first and second absorber elements for moving said absorber elements relative to each other to set a spacing between said first and second absorber elements forming a slit for passage of an x-ray beam therethrough, each of said absorber elements having an absorber element edge shaped to give said slit a slit width that varies in a longitudinal direction of the slit, said slit width increasing outwardly, from a central position, toward respectively opposite ends of said slit, each slit edge, in said longitudinal direction of said slit, having a middle region producing a uniform width of said slit and, further regions respectively disposed on opposite sides of said middle region that produce a linearly increasing slit width in said longitudinal direction of said slit, and said adjustment device producing a parallelogram-like relative movement between said absorber elements.
摘要翻译：一种限定X射线束的门控装置，所述门控装置包括装置壳体，安装在所述装置壳体中彼此相对的第一和第二吸收体元件，连接到所述第一和第二吸收元件的调节装置，用于使所述吸收体元件相对移动以形成所述第一和第二吸收元件之间的间隔，形成用于X射线束通过的狭缝，每个所述吸收体元件具有吸收体元件边缘，该吸收体元件边缘形成为使所述狭缝具有纵向变化的狭缝宽度缝隙的方向，所述狭缝宽度从中心位置向所述缝隙的相对端逐渐增加，所述狭缝的所述纵向方向上的每个狭缝边缘具有产生所述狭缝宽度均匀的中间区域分别设置在所述中间区域的相对侧上，在所述狭缝的所述纵向方向上产生线性增加的狭缝宽度的区域和sai d调节装置，其在所述吸收体元件之间产生平行四边形的相对运动。

3. 发明申请

US20100246917A1 CONTRAST-DEPENDENT REGULARIZATION STRENGTH IN THE ITERATIVE RECONSTRUCTION OF CT IMAGES 有权
标题翻译： CT图像迭代重建中的对比度正规化强度
公开(公告)号：US20100246917A1
公开(公告)日：2010-09-30
申请号：US12729272
申请日：2010-03-23
申请人： Herbert Bruder , Thomas Flohr , Rainer Raupach , Martin Sedlmair , Heinrich Wallschlager
发明人： Herbert Bruder , Thomas Flohr , Rainer Raupach , Martin Sedlmair , Heinrich Wallschlager
IPC分类号： G06K9/00
CPC分类号： A61B6/481 , A61B6/032 , A61B6/4014 , A61B6/4441 , A61B6/482 , A61B6/503 , A61B6/504 , A61B6/507 , A61B6/541 , G06T11/006 , G06T2211/424
摘要： A method is disclosed for reconstructing image data of an examination object from measured data, the measured data being captured during a rotating movement of a radiation source of a computed tomography system around the examination object. In at least one embodiment, different iteration images of the examination object are determined successively from the measured data by way of an iterative algorithm, wherein with the iterative algorithm the current iteration image at any one time is high-pass-filtered and weighted as a function of contrast using a variable which contains contrast information relating to the current iteration image at that time.
摘要翻译：公开了一种用于从测量数据重建检查对象的图像数据的方法，所测量的数据在计算机断层扫描系统的辐射源围绕检查对象的旋转运动期间被捕获。在至少一个实施例中，通过迭代算法从测量数据连续地确定检查对象的不同迭代图像，其中利用迭代算法，任何时间的当前迭代图像被高通滤波并加权为使用包含与当时的当前迭代图像有关的对比度信息的变量的对比度的功能。

4. 发明申请

US20050190885A1 Computer-assisted method for calculating the temperature of a solid body 失效
标题翻译：用于计算固体温度的计算机辅助方法
公开(公告)号：US20050190885A1
公开(公告)日：2005-09-01
申请号：US11051357
申请日：2005-02-04
申请人： Johannes Ebersberger , Heinrich Wallschlager
发明人： Johannes Ebersberger , Heinrich Wallschlager
IPC分类号： G01K7/42 , H01J35/10 , G01N25/18
CPC分类号： H01J35/10 , G01K7/42 , H01J35/105
摘要： In a method for calculating the temperature T of a solid body or the time t that is needed for a change of the temperature T of the solid body, a solution function to a dimensionless equation corresponding to the differential equation dT/dt=b−aT4−cT, is determined and used to create a matrix A=(aij) with which T or t can be easily calculated.
摘要翻译：在用于计算固体温度T或固体温度T变化所需时间t的方法中，对于微分方程dT / dt = b-aT对应的无量纲方程的解函数确定并且使用它们来创建可以容易地计算出T或t的矩阵A =（a i，ij）。

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