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81. 发明授权

US08166249B2 Performing a least recently used (LRU) algorithm for a co-processor 失效
标题翻译：对协处理器执行最近使用的（LRU）算法
公开(公告)号：US08166249B2
公开(公告)日：2012-04-24
申请号：US12399416
申请日：2009-03-06
申请人： Thomas Koehler , Siegmund Schlechter
发明人： Thomas Koehler , Siegmund Schlechter
IPC分类号： G06F12/00
CPC分类号： G06F12/123 , G06F12/1027
摘要： A method to perform a least recently used (LRU) algorithm for a co-processor is described, which co-processor in order to directly use instructions of a core processor and to directly access a main storage by virtual addresses of said core processor comprises a TLB for virtual to absolute address translations plus a dedicated memory storage also including said TLB, wherein said TLB consists of at least two zones which can be assigned in a flexible manner more than one at a time. Said method to perform a LRU algorithm is characterized in that one or more zones are replaced dependent on an actual compression service call (CMPSC) instruction.
摘要翻译：描述了为协处理器执行最近最少使用（LRU）算法的方法，其中为了直接使用核心处理器的指令并且通过所述核心处理器的虚拟地址直接访问主存储器的协处理器包括用于虚拟到绝对地址转换的TLB以及还包括所述TLB的专用存储器存储器，其中所述TLB由至少两个可以以多于一个的灵活方式分配的区域组成。所述执行LRU算法的方法的特征在于，取决于实际压缩服务呼叫（CMPSC）指令来替换一个或多个区域。

82. 发明申请

US20120008747A1 DIFFERENTIAL PHASE-CONTRAST IMAGING WITH CIRCULAR GRATINGS 有权
标题翻译：具有圆形光栅的差分相位对比成像
公开(公告)号：US20120008747A1
公开(公告)日：2012-01-12
申请号：US13260380
申请日：2010-03-15
申请人： Ewald Roessl , Thomas Koehler , Gerhard Martens
发明人： Ewald Roessl , Thomas Koehler , Gerhard Martens
IPC分类号： G01N23/201 , G01N23/04
CPC分类号： G21K7/00 , A61B6/4291 , A61B6/484 , A61B6/502
摘要： The invention relates to an X-ray differential phase-contrast imaging system which has three circular gratings. The circular gratings are aligned with the optical axis of the radiation beam and a phase stepping is performed along the optical axis with the focal spot, the phase grating and/or the absorber grating. The signal measured is the phase-gradient in radial direction away from the optical axis.
摘要翻译：本发明涉及一种具有三个圆形光栅的X射线差分相位对比成像系统。圆形光栅与辐射束的光轴对准，并且沿着光轴与焦斑，相位光栅和/或吸收光栅一起执行相位步进。测量的信号是远离光轴的径向相位梯度。

83. 发明授权

US07970195B2 Method and device for the iterative reconstruction of tomographic images 有权
标题翻译：断层图像迭代重建的方法和装置
公开(公告)号：US07970195B2
公开(公告)日：2011-06-28
申请号：US11908294
申请日：2006-03-07
申请人： Andy Ziegler , Thomas Koehler , Roland Proksa
发明人： Andy Ziegler , Thomas Koehler , Roland Proksa
IPC分类号： G06K9/00
CPC分类号： G06T11/006 , G06T2211/424
摘要： The invention relates to a device and a method for the iterative reconstruction of the attenuation coefficients μj in a tomographic image of an object (1) from projection measurements mi. In the update equation for μjn during the n-th iteration the backprojected error (mi−mi−(μjn)) is weighted by a voxel dependent factor Formula (I). Such a voxel dependent update may particularly be included in the algorithms of ART or ML.
摘要翻译：本发明涉及一种用于从投影测量mi在物体（1）的断层图像中迭代重建衰减系数μj的装置和方法。在第n次迭代期间的μjn的更新方程中，反投影误差（mi-mi-（μjn））由体素因子因子公式（I）加权。这种体素相关更新可以特别地包括在ART或ML的算法中。

84. 发明申请

US20100322514A1 APPARATUS, METHOD AND COMPUTER PROGRAM FOR PRODUCING A CORRECTED IMAGE OF A REGION OF INTEREST FROM ACQUIRED PROJECTION DATA 失效
标题翻译：用于生成来自获取的投影数据的利益区域的校正图像的装置，方法和计算机程序
公开(公告)号：US20100322514A1
公开(公告)日：2010-12-23
申请号：US12521599
申请日：2007-12-19
申请人： Thomas Koehler
发明人： Thomas Koehler
IPC分类号： G06K9/34
CPC分类号： G06T11/005 , A61B6/5258
摘要： The present invention relates to an apparatus for producing a corrected image of a region of interest from acquired projection data (60), wherein an uncorrected intermediate image (74) is reconstructed. The uncorrected intermediate image (74) is corrected and image elements of the corrected intermediate image (85) are classified. Image elements of the corrected 5 intermediate image (85) that are of a high density or low density class are replaced by image elements having values depending on values of the low density class to generate a synthetic image (90). Synthetic projection data (96) are generated by forward projecting the synthetic image (90), and acquired projection data contributing to the high density class are replaced by corresponding synthetic projection data (96) to generate corrected projection data (112). 10 The corrected projection data (112) are used for reconstructing the corrected image.
摘要翻译：本发明涉及一种用于从所获取的投影数据（60）产生感兴趣区域的校正图像的装置，其中重建未校正的中间图像（74）。对未校正的中间图像（74）进行校正，校正的中间图像（85）的图像元素被分类。具有高密度或低密度等级的校正的5中间图像（85）的图像元素由具有取决于低密度等级的值的值的图像元素代替以产生合成图像（90）。合成投影数据（96）通过前向投影合成图像（90）产生，并且由相应的合成投影数据（96）代替有助于高密度等级的获取的投影数据以产生校正投影数据（112）。校正投影数据（112）用于重建校正图像。

85. 发明授权

US07839967B2 Electron computer tomography method and electron computer tomograph 失效
标题翻译：电子计算机断层扫描法和电子计算机断层扫描仪
公开(公告)号：US07839967B2
公开(公告)日：2010-11-23
申请号：US11721165
申请日：2005-12-08
申请人： Michael Grass , Thomas Koehler
发明人： Michael Grass , Thomas Koehler
IPC分类号： G01N23/00
CPC分类号： G01N23/046 , A61B6/027 , A61B6/032 , A61B6/4028 , A61B6/4488 , G01N2223/419
摘要： There is provided an electron computer tomography method for recording a moving object (27), in which an electron beam is deflected onto an anode arc (14) in order to generate X-ray radiation which passes through an object (27) and is picked up by a detector device (28), wherein the X-ray radiation leaves the anode arc (14) in the form of a fan-shaped beam having a source trajectory (40) in the form of a circle segment around the object (27) and the starting point (41) of the source trajectory (40) can be changed. Also provided is an electron computer tomograph for recording a moving object (27), comprising an electron gun (8), a focusing coil (12), a curvature coil (16), an anode arc (14) for generating an X-ray beam by being struck by an electron beam of the electron gun (8), and a detector device (28) for detecting the X-ray radiation transmitted through a volume (26), said X-ray radiation having a source trajectory (40) in the form of a circle segment at the anode arc (14) and a variable starting point (41) of the source trajectory (40).
摘要翻译：提供了一种用于记录运动物体（27）的电子计算机断层摄影方法，其中电子束偏转到阳极弧（14）上，以便产生穿过物体（27）并被拾取的X射线辐射（28），其中X射线辐射以具有围绕物体（27）的圆弧形式的源轨迹（40）的扇形梁的形式离开阳极弧（14））和源轨迹（40）的起点（41）可以改变。还提供了一种用于记录运动物体（27）的电子计算机断层摄影机，包括电子枪（8），聚焦线圈（12），曲率线圈（16），用于产生X射线的阳极弧通过被电子枪（8）的电子束撞击的光束;以及用于检测透过体积（26）的X射线辐射的检测器装置（28），所述X射线辐射具有源轨迹（40）在阳极弧（14）处的圆形段和源轨迹（40）的可变起点（41）的形式。

86. 发明授权

US07778383B2 Effective dual-energy x-ray attenuation measurement 失效
标题翻译：有效的双能X射线衰减测量
公开(公告)号：US07778383B2
公开(公告)日：2010-08-17
申请号：US12293564
申请日：2007-03-14
申请人： Thomas Koehler , Jens-Peter Schlomka
发明人： Thomas Koehler , Jens-Peter Schlomka
IPC分类号： A61B6/00
CPC分类号： G01T1/2985 , A61B6/032 , A61B6/037 , A61B6/4021 , A61B6/4028 , A61B6/482 , G01V5/0041 , G01V5/005 , Y10S378/901
摘要： It is described a method and a CT system for measuring dual-energy X- ray attenuation data of an object. The CT system comprises a rotatable holder, an X-ray source comprising two different X-ray focus points, and an X-ray detection device comprising a plurality of detector elements exhibiting different spectral sensitivities. The method comprises the steps of (a) adjusting the X-ray source such that it emits X-rays originating a first focus point, (b) acquiring first attenuation data separately with first detector elements and with second detector elements, (c) moving the X-ray focus discretely to a second focus point, and (d) acquiring second attenuation data separately with both types of detector elements. Thereby the two focus points are spatially separated from each such that a first beam path originating from the first focus point penetrates a certain voxel within the object and impinges on a first detector element and a second beam path originating from the second X-ray focus point penetrates the same voxel and impinges on a second detector element.
摘要翻译：描述了用于测量物体的双能X射线衰减数据的方法和CT系统。 CT系统包括可旋转保持器，包括两个不同X射线焦点的X射线源和包括表现出不同光谱灵敏度的多个检测器元件的X射线检测装置。该方法包括以下步骤：（a）调整X射线源，使其发射源自第一焦点的X射线，（b）分别用第一检测器元件和第二检测器元件获取第一衰减数据，（c）移动所述X射线焦点离散地到达第二焦点，以及（d）分别用两种类型的检测器元件获取第二衰减数据。从而两个聚焦点在空间上分离开，使得源自第一聚焦点的第一光束路径穿透物体内的某个体素并撞击在第一X射线焦点上的第一检测器元件和第二光束路径穿透相同的体素并撞击在第二检测器元件上。

87. 发明申请

US20100166139A1 EFFECTIVE DUAL-ENERGY X-RAY ATTENUATION MEASUREMENT 失效
标题翻译：有效的双能量X射线衰减测量
公开(公告)号：US20100166139A1
公开(公告)日：2010-07-01
申请号：US12293564
申请日：2007-03-14
申请人： Thomas Koehler , Jens-Peter Schlomka
发明人： Thomas Koehler , Jens-Peter Schlomka
IPC分类号： H05G1/60 , G01T1/29
CPC分类号： G01T1/2985 , A61B6/032 , A61B6/037 , A61B6/4021 , A61B6/4028 , A61B6/482 , G01V5/0041 , G01V5/005 , Y10S378/901
摘要： It is described a method and a CT system for measuring dual-energy X- ray attenuation data of an object. The CT system comprises a rotatable holder, an X-ray source comprising two different X-ray focus points, and an X-ray detection device comprising a plurality of detector elements exhibiting different spectral sensitivities. The method comprises the steps of (a) adjusting the X-ray source such that it emits X-rays originating a first focus point, (b) acquiring first attenuation data separately with first detector elements and with second detector elements, (c) moving the X-ray focus discretely to a second focus point, and (d) acquiring second attenuation data separately with both types of detector elements. Thereby the two focus points are spatially separated from each such that a first beam path originating from the first focus point penetrates a certain voxel within the object and impinges on a first detector element and a second beam path originating from the second X-ray focus point penetrates the same voxel and impinges on a second detector element.
摘要翻译：描述了用于测量物体的双能X射线衰减数据的方法和CT系统。 CT系统包括可旋转保持器，包括两个不同X射线焦点的X射线源和包括表现出不同光谱灵敏度的多个检测器元件的X射线检测装置。该方法包括以下步骤：（a）调整X射线源，使其发射源自第一焦点的X射线，（b）分别用第一检测器元件和第二检测器元件获取第一衰减数据，（c）移动所述X射线焦点离散地到达第二焦点，以及（d）分别用两种类型的检测器元件获取第二衰减数据。从而两个聚焦点在空间上分离开，使得源自第一聚焦点的第一光束路径穿透物体内的某个体素并撞击在第一X射线焦点上的第一检测器元件和第二光束路径穿透相同的体素并撞击在第二检测器元件上。

88. 发明申请

US20090326382A1 OPTICAL IMAGING SYSTEM AND METHOD 有权
标题翻译：光学成像系统和方法
公开(公告)号：US20090326382A1
公开(公告)日：2009-12-31
申请号：US12307777
申请日：2007-06-25
申请人： Tim Nielsen , Thomas Koehler
发明人： Tim Nielsen , Thomas Koehler
IPC分类号： A61B6/00
CPC分类号： A61B5/4312 , A61B5/0091
摘要： A device for determining a concentration-related quantity of a fluorescent contrast agent applied to an object (2), in particular a turbid medium. Said device generally comprises a source (4) of electromagnetic radiation for irradiating the object (2) at an excitation wavelength and at least one first detecting means (6, 7.1, 7.2, . . . , 8) for detecting fluorescent electromagnetic radiation emitted by the contrast agent at a fluorescence wavelength, said first detecting means producing fluorescence intensity data (F). The proposed device further comprises at least one second detecting means (6, 7.1, 7.2, . . . ) for detecting electromagnetic radiation transmitted by the object (2) at the excitation wavelength, said second detecting means producing transmission intensity data (T), and evaluating means (10) adapted to receive the transmission intensity data and the fluorescence intensity data and to determine said concentration-related quantity of the contrast agent from a ratio (R) of fluorescence intensity data and transmission intensity data.
摘要翻译：一种用于确定应用于物体（2）的荧光对比剂的浓度相关量的装置，特别是混浊介质。所述装置通常包括用于以激发波长照射物体（2）的电磁辐射源（4）和至少一个第一检测装置（6,7.1,7.2，...，8），用于检测由所述造影剂处于荧光波长，所述第一检测装置产生荧光强度数据（F）。所提出的装置还包括用于检测由激光波长发射的物体（2）的电磁辐射的至少一个第二检测装置（6,7.1,7.2 ...），所述第二检测装置产生发射强度数据（T）以及评估装置（10），其适于从荧光强度数据和透射强度数据的比率（R）接收透射强度数据和荧光强度数据并确定造影剂的浓度相关量。

89. 发明申请

US20090310737A1 METHOD FOR COMPUTER TOMOGRAPHY, AND COMPUTER TOMOGRAPH 审中-公开
标题翻译：计算机图形学和计算机图形学的方法
公开(公告)号：US20090310737A1
公开(公告)日：2009-12-17
申请号：US11721543
申请日：2005-12-13
申请人： Peter Forthmann , Thomas Koehler , Robert Manzke , Michael Grass , Andy Ziegler
发明人： Peter Forthmann , Thomas Koehler , Robert Manzke , Michael Grass , Andy Ziegler
IPC分类号： A61B6/00
CPC分类号： A61B6/541 , A61B6/027 , A61B6/032 , A61B6/4085 , A61B6/503
摘要： According to the invention, there is provided a method of recording images of the heart in computer tomography, in which, in order to prevent movement artifacts, the images are reconstructed on the basis of similar movement states of the heart and different radiation intensities are used for different movement states. Also provided is a computer tomograph for recording images of the heart in computer tomography by means of time windows which exhibit similar movement states of the heart in order to prevent movement artifacts, said computer tomograph comprising a control device which controls a radiation source with different radiation intensities for different movement states. Furthermore provided is a computer program for a computer tomograph for recording images of the heart in computer tomography by means of time windows which exhibit similar movement states of the heart in order to prevent movement artifacts, and for controlling a radiation source with different radiation intensities for different movement states.
摘要翻译：根据本发明，提供了一种在计算机断层摄影中记录心脏图像的方法，其中为了防止运动伪像，基于心脏的相似运动状态重建图像，并且使用不同的辐射强度对于不同的运动状态。还提供了一种用于在计算机断层摄影中记录心脏图像的计算机断层摄影装置，其通过显示相似的心脏运动状态以防止运动伪像的时间窗口，所述计算机断层摄影机包括控制具有不同辐射的辐射源的控制装置不同运动状态的强度。此外还提供了一种计算机断层摄影机的计算机程序，用于通过时间窗口在计算机断层摄影中记录心脏的图像，所述时间窗口表现出相似的心脏运动状态以便防止运动伪像，并且用于控制具有不同辐射强度的辐射源不同的运动状态。

90. 发明申请

US20090228667A1 Performing a Least Recently Used (LRU) Algorithm for a Co-Processor 失效
标题翻译：执行协处理器的最近最少使用（LRU）算法
公开(公告)号：US20090228667A1
公开(公告)日：2009-09-10
申请号：US12399416
申请日：2009-03-06
申请人： Thomas Koehler , Siegmund Schlechter
发明人： Thomas Koehler , Siegmund Schlechter
IPC分类号： G06F12/12 , G06F12/08 , G06F12/00
CPC分类号： G06F12/123 , G06F12/1027
摘要： A method to perform a least recently used (LRU) algorithm for a co-processor is described, which co-processor in order to directly use instructions of a core processor and to directly access a main storage by virtual addresses of said core processor comprises a TLB for virtual to absolute address translations plus a dedicated memory storage also including said TLB, wherein said TLB consists of at least two zones which can be assigned in a flexible manner more than one at a time. Said method to perform a LRU algorithm is characterized in that one or more zones are replaced dependent on an actual compression service call (CMPSC) instruction.
摘要翻译：描述了为协处理器执行最近最少使用（LRU）算法的方法，其中为了直接使用核心处理器的指令并且通过所述核心处理器的虚拟地址直接访问主存储器的协处理器包括用于虚拟到绝对地址转换的TLB以及还包括所述TLB的专用存储器存储器，其中所述TLB由至少两个可以以多于一个的灵活方式分配的区域组成。所述执行LRU算法的方法的特征在于，取决于实际压缩服务呼叫（CMPSC）指令来替换一个或多个区域。

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