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11. 发明申请

US20080304617A1 Method for generating a 3D reconstruction of a body 有权
标题翻译：用于生成身体的3D重建的方法
公开(公告)号：US20080304617A1
公开(公告)日：2008-12-11
申请号：US12156932
申请日：2008-06-05
申请人： Thomas Brunner , Benno Heigl , Holger Kunze , Florian Vogt
发明人： Thomas Brunner , Benno Heigl , Holger Kunze , Florian Vogt
IPC分类号： A61B6/00
CPC分类号： G01N23/046 , A61B6/03 , G01N2223/419 , G06T11/006 , G06T2211/421 , G06T2211/432
摘要： The invention relates to a method for generating a 3D reconstruction of an especially large body that cannot be captured by a single projection by capturing at least two projections, which together capture the body, at each of the positions taken up by a C-arm X-ray unit. Data from the two projections is projected onto a virtual detector and the data from the virtual detector is then used for the filtered back projection procedure. It is assumed here that the real source remains motionless and that only the detector moves. A virtual detector D1′/D2′ is only used in order to carry out large scale filtering in the event that real sources Q1 and Q2 for the two projections do not coincide. A return is then made to two independent projections. These two independent projections are used separately in the filtered back projection procedure to generate the 3D reconstruction.
摘要翻译：本发明涉及一种用于产生特别大的身体的3D重建的方法，其不能被单个投影捕获，通过在由C形臂X牵引的每个位置处捕获至少两个突起（它们一起俘获身体）射线单位来自两个投影的数据被投影到虚拟检测器上，然后将来自虚拟检测器的数据用于滤波反投影过程。这里假定实际的源保持不动，只有检测器移动。只有在两个投影的实际源Q1和Q2不一致的情况下，才使用虚拟检测器D1'/ D2'来执行大规模滤波。然后返回到两个独立的投影。这两个独立的投影在经滤波的反投影过程中单独使用以产生3D重建。

12. 发明申请

US20110268335A1 Increased Temporal Resolution In The Case Of CT Images By Means Of Iterative View Reconstruction With Limiting Conditions 有权
标题翻译：在CT图像的情况下，通过具有限制条件的迭代视图重建来增加时间分辨率
公开(公告)号：US20110268335A1
公开(公告)日：2011-11-03
申请号：US13098530
申请日：2011-05-02
申请人： Holger Kunze , Harald Schöndube , Karl Stierstorfer
发明人： Holger Kunze , Harald Schöndube , Karl Stierstorfer
IPC分类号： G06K9/00 , A61B6/03
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4441 , A61B6/482 , A61B6/507 , A61B6/5205 , A61B6/5258 , A61B6/5264 , A61B6/5288 , A61B6/541 , G06T11/006 , G06T2211/424 , G06T2211/436
摘要： A method is disclosed for the reconstruction of image data of a moving object to be examined from measurement data, wherein the measurement data has previously been established in a relative rotational movement between a radiation source of a computed tomography system and the object to be examined. In at least one embodiment, first image data is reconstructed from an incomplete measurement data record by way of an iterative algorithm, wherein in the iterative reconstruction a dimension is used which contains probability information relating to pixel values of the image data to be reconstructed.
摘要翻译：公开了一种用于从测量数据重建要检查的移动物体的图像数据的方法，其中测量数据先前已经在计算机断层摄影系统的辐射源和待检查对象之间的相对旋转运动中建立。在至少一个实施例中，通过迭代算法从不完整的测量数据记录重建第一图像数据，其中在迭代重建中使用包含与要重构的图像数据的像素值有关的概率信息的维度。

13. 发明授权

US07986762B2 Method for recording an examination object 有权
标题翻译：记录检查对象的方法
公开(公告)号：US07986762B2
公开(公告)日：2011-07-26
申请号：US12861908
申请日：2010-08-24
申请人： Holger Kunze
发明人： Holger Kunze
IPC分类号： A61B6/00
CPC分类号： G01N23/046 , A61B6/032 , A61B6/5241 , G01N2223/33 , G01N2223/419
摘要： A method is provided for recording an examination object using an x-ray recording system having an x-ray source and an x-ray detector rotatable about a common axis of rotation. X-ray detector is displaced in a first direction enclosing a first angle k between a perpendicular bisector from x-ray source to x-ray detector and a plane running through x-ray source and containing the axis, k≠0. First x-ray images are recorded in angular positions of x-ray source and x-ray detector displaced in the first direction in a first rotation. X-ray detector is displaced in a second direction enclosing a second angle m between the bisector and the plane, m≠0 and is on an opposite side from k. Starting points of the rotations are differed by an angle of displacement β 0 = k + m + d 2 , where d is the detector fan angle. Starting points and finishing points of the rotations are spanned by π+β0.
摘要翻译：提供了一种使用具有可绕公共旋转轴线旋转的x射线源和x射线检测器的X射线记录系统来记录检查对象的方法。 X射线检测器在包含从x射线源到x射线检测器的垂直二等分线之间的第一角度k的第一方向和穿过X射线源并包含轴线的平面k≠0上移位。第一x射线图像记录在x射线源和x射线检测器在第一旋转中沿第一方向移位的角位置。 X射线检测器在二等分线与平面之间的第二方向上移位，m≠0，与k相反。旋转起点与位移角（bgr）不同; 0 = k + m + d 2，其中d是检测器风扇角度。 +＆bgr; 0的旋转起点和终点。

14. 发明授权

US07653171B2 Method for image reconstruction of an object with the aid of projections, and apparatus for carrying out the method 有权
标题翻译：借助于投影来对象的图像重构的方法，以及用于执行该方法的装置
公开(公告)号：US07653171B2
公开(公告)日：2010-01-26
申请号：US11806166
申请日：2007-05-30
申请人： Holger Kunze , Karl Stierstorfer
发明人： Holger Kunze , Karl Stierstorfer
IPC分类号： A61B6/03
CPC分类号： G06T11/006 , A61B6/466
摘要： A method is disclosed for image reconstruction of an object with the aid of at least one-dimensional projections of the object into a three-dimensional volume image data record, it being possible to generate the projections by at least one detector/source system with reference to different positions and angles relative to the object, and at least two projections forming a reconstruction volume in an overlap region as basis for a backprojection of the projections into the three-dimensional volume image data record, in particular computed tomography. An apparatus for carrying out the method is further disclosed. In at least one embodiment, supplemented reconstruction volumes are generated by supplementing reconstruction volumes, covered only partially by projections, by way of virtual projections that are derived from volume image data records. By comparison with reconstruction volumes that are merely interpolated, supplementing a reconstruction volume with the aid of virtual projections can decisively improve the image quality of the computed tomography images that are backprojected therefrom.
摘要翻译：公开了一种借助于物体的至少一维投影到三维体积图像数据记录中的对象的图像重建的方法，可以由具有参考的至少一个检测器/源系统产生投影至少两个突起，形成重叠区域中的重建体积，作为将投影反投影到三维体积图像数据记录，特别是计算机断层摄影中的基础。进一步公开了一种用于执行该方法的装置。在至少一个实施例中，通过补充由体积图像数据记录导出的虚拟投影来补充仅部分由投影部分覆盖的重建体积来生成补充的重建体积。通过与仅内插的重建体积进行比较，借助于虚拟投影来补充重建体积可以有效地改善从其反向投影的计算机断层摄影图像的图像质量。

15. 发明申请

US20080205737A1 Method and apparatus for the artifact-reduced detection of a 3D object in tomographic imaging 有权
标题翻译：用于在断层成像中3D物体的伪像检测的方法和装置
公开(公告)号：US20080205737A1
公开(公告)日：2008-08-28
申请号：US12068678
申请日：2008-02-11
申请人： Holger Kunze , Karl Stierstorfer
发明人： Holger Kunze , Karl Stierstorfer
IPC分类号： G06K9/00 , G06K9/36
CPC分类号： G06T11/006 , G06T2211/424 , G06T2211/432
摘要： Incomplete data records owing to an object extent that stretches beyond the scanning field of view (SFOV) constitute a general problem in computed tomography. In these cases, parts of the object are to be reconstructed, for which only incomplete projections from an angular range of less than 180° are available. The application of iterative algorithms such as, for example, the algebraic reconstruction technique (ART) or the simultaneous algebraic reconstruction technique (SART) to this problem of truncated projections cannot lead to a satisfactory solution unless use is made of special boundary conditions. In order to regularize the reconstruction method, in at least one embodiment, information relating to the statistics of the attenuation values of the reconstructed object is also included in the form of the logarithmic probability function of the attenuation values. This information can be obtained from the regions of those image parts which are still completely contained in the SFOV, but nevertheless lie in the vicinity of the region where the object leaves the SFOV. Furthermore, the information can be used in an algebraic reconstruction method by adding a boundary condition term to the cost function to be minimized. Experiments indicate that taking account of this information leads to good estimates with reference to the object in the event of insubstantially truncated projections such as are customary in CT applications, for example.
摘要翻译：由于目标范围延伸超出扫描视场（SFOV）的不完整的数据记录在计算机断层摄影中构成了一个普遍的问题。在这些情况下，要重构对象的部分，仅从角度范围小于180°的不完全投影可用。对于这种截断投影的问题，迭代算法（例如代数重建技术（ART）或同时代数重构技术（SART））的应用不能导致令人满意的解决方案，除非使用特殊的边界条件。为了使重建方法正规化，在至少一个实施例中，与重建对象的衰减值的统计相关的信息也以衰减值的对数概率函数的形式包含。该信息可以从仍然完全包含在SFOV中的那些图像部分的区域获得，但仍然位于物体离开SFOV的区域附近。此外，通过向成本函数添加边界条件项以最小化，可以在代数重建方法中使用该信息。实验表明，考虑到这种信息，在例如CT应用中常见的非实质截断的投影的情况下，参考对象可以得出良好的估计。

16. 发明授权

US06687514B1 Base station for a radio communications system 失效
标题翻译：基站用于无线电通信系统
公开(公告)号：US06687514B1
公开(公告)日：2004-02-03
申请号：US09592300
申请日：2000-06-12
申请人： Jörg Dauerer , Dieter Emmer , Ralf Foissner , Zoran Gardijan , Heiko Junker , Holger Kunze , Franz Schreib , Jörg Sokat , Peter Spennemann , Gerhard Steib
发明人： Jörg Dauerer , Dieter Emmer , Ralf Foissner , Zoran Gardijan , Heiko Junker , Holger Kunze , Franz Schreib , Jörg Sokat , Peter Spennemann , Gerhard Steib
IPC分类号： H04M100
CPC分类号： H04W88/08 , H04W88/085
摘要： A base station for a radio communications systems contains at least one carrier-related transceiver device and at least one central unit for controlling the base station. The transceiver device and the central unit each contain at least one interface device which are connected by at least one individual line in accordance with a point-to-point connection for transmitting traffic data. Therefore, point-to-point connections with individual lines for each transceiver device that do not need to satisfy the requirements of identical lengths are used instead of a bus structure. In this way, an essentially more cost-effective implementation of the transmission of traffic data between the central unit and transceiver device is possible because the data rate can also be increased in accordance with the length of the individual line. A logic bus structure is mapped onto physical point-to-point connections. Traffic data, o&m data and also synchronization data are transmitted using the bus structure. The base station is suitable for use in radio communications systems with GSM, TDMA, CDMA radio interfaces, or other radio interfaces.
摘要翻译：用于无线电通信系统的基站包含至少一个载波相关收发器装置和用于控制基站的至少一个中央单元。收发器设备和中央单元每个包含至少一个接口设备，其根据用于传输业务数据的点对点连接由至少一个单独的线路连接。因此，使用不需要满足相同长度的要求的每个收发器设备的各个线路的点对点连接而不是总线结构。以这种方式，在中央单元和收发器设备之间传输业务数据的基本上更具成本效益的实现是可能的，因为也可以根据单独线路的长度增加数据速率。逻辑总线结构映射到物理点对点连接。使用总线结构传输业务数据，O＆m数据以及同步数据。该基站适用于具有GSM，TDMA，CDMA无线电接口或其他无线电接口的无线电通信系统。

17. 发明授权

US08005285B2 Image processing apparatus for artifact-reduced detection of an object in three dimensions 有权
标题翻译：用于三维物体的伪像检测的图像处理装置
公开(公告)号：US08005285B2
公开(公告)日：2011-08-23
申请号：US11806164
申请日：2007-05-30
申请人： Holger Kunze
发明人： Holger Kunze
IPC分类号： G06K9/00
CPC分类号： A61B6/032 , A61B6/4441 , A61B6/466 , G06T11/006 , G06T2211/424
摘要： An image processing apparatus is disclosed for generating a 3D data record from a plurality of 2D data records. The 3D data record represents an object at least partially in three dimensions, and the 2D data records respectively represent a result of a detection of the object by means of a projection through the object onto a detection plane in two dimensions. In at least one embodiment, the image processing apparatus is designed to generate the 3D data record, in particular by back projection or by filtered back projection from the 2D data records. In at least one embodiment, the image processing apparatus is designed to allocate a no object value to at least one area of the 3D data record that does not represent an object, and to allocate a changed object value to at least one area of the 3D data record in which an object location is represented by an object value.
摘要翻译：公开了一种用于从多个2D数据记录中生成3D数据记录的图像处理装置。 3D数据记录至少部分地表示三维的对象，2D数据记录分别表示通过将对象投影到二维的检测平面上的物体的检测结果。在至少一个实施例中，图像处理装置被设计成生成3D数据记录，特别是通过反向投影或通过从2D数据记录的滤波反投影来生成3D数据记录。在至少一个实施例中，图像处理设备被设计为向不表示对象的3D数据记录的至少一个区域分配无目标值，并且将改变的对象值分配给3D的至少一个区域数据记录，其中对象位置由对象值表示。

18. 发明申请

US20110051887A1 Method for Recording an Examination Object 有权
标题翻译：记录检查对象的方法
公开(公告)号：US20110051887A1
公开(公告)日：2011-03-03
申请号：US12861908
申请日：2010-08-24
申请人： Holger Kunze
发明人： Holger Kunze
IPC分类号： A61B6/03
CPC分类号： G01N23/046 , A61B6/032 , A61B6/5241 , G01N2223/33 , G01N2223/419
摘要： A method is provided for recording an examination object using an x-ray recording system having an x-ray source and an x-ray detector rotatable about a common axis of rotation. X-ray detector is displaced in a first direction enclosing a first angle k between a perpendicular bisector from x-ray source to x-ray detector and a plane running through x-ray source and containing the axis, k≠0. First x-ray images are recorded in angular positions of x-ray source and x-ray detector displaced in the first direction in a first rotation. X-ray detector is displaced in a second direction enclosing a second angle m between the bisector and the plane, m≠0 and is on an opposite side from k. Starting points of the rotations are differed by an angle of displacement β 0 = k + m + d 2 , where d is the detector fan angle. Starting points and finishing points of the rotations are spanned by π+β0.
摘要翻译：提供了一种使用具有可绕公共旋转轴线旋转的x射线源和x射线检测器的X射线记录系统来记录检查对象的方法。 X射线检测器在包含从x射线源到x射线检测器的垂直二等分线之间的第一角度k的第一方向和穿过x射线源并包含轴的平面k≠0处移位。第一x射线图像记录在x射线源和x射线检测器在第一旋转中沿第一方向移位的角位置。 X射线检测器在二等分线与平面之间的第二方向上移位，m≠0并且与k相反。旋转起点与位移角（bgr）不同; 0 = k + m + d 2，其中d是检测器风扇角度。 +＆bgr; 0的旋转起点和终点。

19. 发明授权

US07653172B2 Method for generating tomographical recordings of a partially cyclically moving examination object 有权
标题翻译：用于产生部分循环运动的检查对象的断层记录的方法
公开(公告)号：US07653172B2
公开(公告)日：2010-01-26
申请号：US11903941
申请日：2007-09-25
申请人： Wolfgang Härer , Holger Kunze
发明人： Wolfgang Härer , Holger Kunze
IPC分类号： A61B6/00
CPC分类号： A61B8/5276 , A61B6/032 , A61B6/503 , A61B6/527 , A61B6/541 , G06T11/006 , G06T2211/412 , G06T2211/424
摘要： The invention relates to a method for generating tomographical recordings of a partially cyclically moving examination object by a tomography system and a tomography system, comprising the steps of: a spatial scanning of the examination object taking place using at least one detector, which generates detector output data; movement information of the moving subarea of the examination object being recorded during the scanning and being assigned to the detector output data or stored in a manner which correlates to the detector output data; and tomographical image data being reconstructed from the measured detector output data in a number of iteration steps. The invention is characterized in that iteration takes place in at least two iteration stages, with data records being used from the detector output data of different cycle phase regions in at least two iteration stages.
摘要翻译：本发明涉及一种用于通过断层摄影系统和断层摄影系统产生部分循环运动的检查对象的断层记录的方法，包括以下步骤：使用至少一个检测器进行检查对象的空间扫描，所述检测器产生检测器输出数据; 在扫描期间被记录的检查对象的移动子区域的运动信息被分配给检测器输出数据或以与检测器输出数据相关的方式存储; 并且在多个迭代步骤中从所测量的检测器输出数据重构断层图像数据。本发明的特征在于迭代发生在至少两个迭代阶段，其中在至少两个迭代阶段中从不同周期相位区域的检测器输出数据使用数据记录。

20. 发明申请

US20090074135A1 Method for generating an image sequence for a 3D reconstruction 有权
标题翻译：用于生成3D重建的图像序列的方法
公开(公告)号：US20090074135A1
公开(公告)日：2009-03-19
申请号：US12283404
申请日：2008-09-11
申请人： Lutz Blohm , Thomas Brunner , Holger Kunze
发明人： Lutz Blohm , Thomas Brunner , Holger Kunze
IPC分类号： A61B6/00
CPC分类号： A61B6/032 , A61B6/4441 , A61B6/466 , G06T11/003 , G06T2211/416
摘要： When recording an image sequence, it is possible to deviate from passing through a perfect curve path. There is described how an alternative curve path can be determined. An envelope is determined, a point is determined, which is the center point of the region of interest and then the detector is moved such that it is at right angles in each instance to a line which emanates from the point and simultaneously touches the envelope tangentially. As a result, the region of interest is mapped as optimally as possible in the image sequence so that as good a 3D reconstruction as possible can be obtained.
摘要翻译：当记录图像序列时，可以偏离通过完美曲线路径。描述了如何确定替代曲线路径。确定一个包络线，确定一个点，该点是感兴趣区域的中心点，然后移动检测器，使得它们在每个实例中都与直角相关，并从该点切向并同时接触信封。结果，感兴趣区域在图像序列中尽可能最佳地被映射，使得可以获得尽可能好的3D重建。

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