公开(公告)号：US07440551B2

公开(公告)日：2008-10-21

申请号：US10576318

申请日：2004-10-11

申请人： Thomas Köhler ,  Tim Nielsen

发明人： Thomas Köhler ,  Tim Nielsen

IPC分类号： H05G1/28 ,  H05G1/60

CPC分类号： A61B6/56 ,  G01N23/046 ,  G01N2223/419

摘要： The invention relates to a computer tomograph, in which data from a rotor, which during operation of the computer tomograph rotates about an axis of rotation, is transferred optoelectronically. For that purpose, on the rotor there is located at least one transmitter, which transmits light towards a receiver mounted on the axis of rotation, the light being modulated with the data to be transferred.

摘要翻译： 本发明涉及一种计算机断层摄影机，其中在计算机断层摄影机的操作期间来自转子的数据围绕旋转轴线旋转，其光电转换。 为此目的，在转子上存在至少一个发射器，其将光朝着安装在旋转轴上的接收器传播，光被被传送的数据调制。

公开(公告)号：US07426257B2

公开(公告)日：2008-09-16

申请号：US10552399

申请日：2004-04-02

申请人： Thomas Köhler ,  Michael Grass ,  Roland Proksa

发明人： Thomas Köhler ,  Michael Grass ,  Roland Proksa

IPC分类号： A61B6/03

CPC分类号： A61B6/541 ,  A61B5/1135 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4085 ,  A61B6/503 ,  A61B6/504

摘要： The invention relates to a computer tomography method in which a periodically moving object, in particular an organ of the body, is irradiated by a cone-shaped beam cluster (4) along a trajectory which runs on a cylindrical surface. The radiation transmitted through the object is measured by means of a detector unit (16), and at the same time the periodic movement of the object is recorded. In order to reconstruct the absorption distribution of the object, the measured values or the corresponding beams are rebinned to form a number of parallel projections, where for each of these projections a measured value is determined whose beam irradiates the object. The point in time at which this measured value was acquired is allocated to the respective projection. For the reconstruction, which may for example be carried out using a filtered back-projection, only projections whose allocated points in time lie within a predefined, specific time range (H1) within a period of the object movement are used.

摘要翻译： 本发明涉及一种计算机断层摄影方法，其中周期性移动的物体，特别是身体的脏器被沿着在圆柱形表面上运行的轨迹由锥形束簇（4）照射。 通过检测器单元（16）测量透过物体的辐射，同时记录物体的周期性运动。 为了重建物体的吸收分布，将测量值或对应的光束重新组合以形成多个平行投影，其中对于这些投影中的每一个，确定其光束照射物体的测量值。 将获取该测量值的时间点分配给相应的投影。 对于可以例如使用滤波反投影来进行的重建，仅使用其分配的时间点在物体移动的时段内在预定义的特定时间范围（H 1）内的投影。

公开(公告)号：US07292717B2

公开(公告)日：2007-11-06

申请号：US10560454

申请日：2004-06-07

申请人： Thomas Köhler ,  Roland Proksa

发明人： Thomas Köhler ,  Roland Proksa

IPC分类号： G06K9/00

CPC分类号： G06T11/006 ,  A61B6/027 ,  G06T2211/416

摘要： The invention relates to a computer tomography method in which a radiation source moves relative to an examination region along, in particular, a helical or circular trajectory. Measured values are acquired by a detector unit and a CT image of the examination region is reconstructed from these measured values. In the reconstruction, a complementary measured value, whose ray is oriented parallel to the ray of the respective measured value that has been acquired but in the opposite direction thereto, is determined for each of at least some measured values that lie within a reconstruction window. Redundant measured values are used to calculate the complementary measured values, with the help in particular of John's equation. The measured values for which complementary measured values have been determined are each replaced by a sum comprised a measured value that has been weighted and a complementary measured value that has been weighted, and a CT image is reconstructed, in particular by an exact method of reconstruction, from the replacement measured values, and where appropriate from acquired measured values, that lie within the reconstruction window.

摘要翻译： 本发明涉及一种计算机断层摄影方法，其中辐射源相对于沿着特别是螺旋或圆形轨迹的检查区域移动。 通过检测器单元获取测量值，并从这些测量值重建检查区域的CT图像。 在重建中，对于位于重建窗口内的至少一些测量值中的每一个确定其光线平行于已经获取但与其相反方向的相应测量值的射线的互补测量值。 冗余测量值用于计算补充测量值，特别是约翰方程式的帮助。 已经确定了互补测量值的测量值各自被包括被加权的测量值和已经加权的测量值和重建CT图像的和，特别是通过重建的精确方法 ，从替换测量值，并在适当时从获得的测量值，位于重建窗口内。

公开(公告)号：US06836740B2

公开(公告)日：2004-12-28

申请号：US10356786

申请日：2003-01-31

申请人： Thomas Köhler ,  Bernhard Zintzen

发明人： Thomas Köhler ,  Bernhard Zintzen

IPC分类号： G01C1738

CPC分类号： B41J3/54 ,  H04N1/047 ,  H04N1/1912 ,  H04N2201/0471 ,  H04N2201/04717 ,  H04N2201/04734

摘要： A method of determining a relative position of first and second imaging devices includes setting an image of a group of mutually different reference patterns and a basic pattern on an imaging medium, with the second imaging device. Each reference pattern of the group is assigned uniquely to one relative position. An image of at least one test pattern is set over the basic pattern by the first imaging device, for forming a combination pattern. A reference pattern having an area coverage coinciding with an area coverage of the combination pattern is identified from the group of reference patterns. A relative position associated with the identified reference pattern of the group of reference patterns is then identified. A printing form exposer, a printing unit, a printing unit group and a printing press for performing the method are also provided.

公开(公告)号：US06438198B1

公开(公告)日：2002-08-20

申请号：US09718249

申请日：2000-11-22

申请人： Thomas Köhler

发明人： Thomas Köhler

IPC分类号： A61B603

CPC分类号： A61B6/032 ,  A61B6/4085 ,  A61B6/5205

摘要： A computed tomography method in which novel compromise is reached between transmission bandwidth and image quality. The method includes combining the signals of at least two neighboring detector elements so as to form one measured value, and cyclically varying the combinations of neighboring detector element signals as the radiation source position changes.

摘要翻译： 一种计算机断层摄影方法，其中在传输带宽和图像质量之间达到新的折衷。 该方法包括组合至少两个相邻检测器元件的信号以形成一个测量值，并且随着辐射源位置的变化，周期性地改变相邻检测器元件信号的组合。

公开(公告)号：US06426992B1

公开(公告)日：2002-07-30

申请号：US09921505

申请日：2001-08-02

申请人： Thomas Köhler ,  Roland Proksa

发明人： Thomas Köhler ,  Roland Proksa

IPC分类号： A61B603

CPC分类号： G01T1/2985 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4035 ,  A61B6/4085 ,  A61B6/4291 ,  A61B6/482 ,  Y10S378/901

摘要： The invention relates to a computed tomography apparatus whose radiation source emits a conical radiation beam and is capable of scanning the examination zone along a trajectory in the form of a helix. The detector unit that is connected to the radiation source consists of a plurality of spatially separated detector segments that are mutually offset in the axial direction and each of which is arranged in such a manner that a projection onto the helix covers at least two neighboring turns of the helix. A CT image having an improved and spatially more uniformly distributed signal-to-noise ratio can be reconstructed from the CT data acquired by means of such a detector unit.

公开(公告)号：US06840097B1

公开(公告)日：2005-01-11

申请号：US09546893

申请日：2000-04-10

申请人： Rainer Huber ,  Bernd Leitner ,  Hans Steinbichler ,  Junli Sun ,  Volker Rasenberger ,  Thomas Köhler ,  Thomas Leitner ,  Josef Engelsberger

发明人： Rainer Huber ,  Bernd Leitner ,  Hans Steinbichler ,  Junli Sun ,  Volker Rasenberger ,  Thomas Köhler ,  Thomas Leitner ,  Josef Engelsberger

IPC分类号： G01B11/00 ,  B60C19/00 ,  G01B11/02 ,  G01B11/24 ,  G01B11/245 ,  G01B11/30 ,  G01B15/00 ,  G01B15/06 ,  G01B15/08 ,  G01M17/02 ,  G01M17/03 ,  B60C23/02 ,  B63B9/08

CPC分类号： G01B11/30 ,  G01M17/027 ,  G01M17/028

摘要： The present invention relates to an inspection apparatus for tires having a positioning device for the tire to be inspected and a laser inspection device. In accordance with the invention, the inspection device comprises several measuring heads, in particular laser measuring heads in order to reduce the inspection time. In accordance with one aspect of the invention, several observation units and associated lighting sources are integrated in each measuring head.

摘要翻译： 本发明涉及具有待检查轮胎的定位装置的轮胎检查装置和激光检查装置。 根据本发明，检查装置包括若干测量头，特别是激光测量头，以减少检查时间。 根据本发明的一个方面，在每个测量头中集成有多个观察单元和相关联的光源。

公开(公告)号：US06381298B2

公开(公告)日：2002-04-30

申请号：US09732587

申请日：2000-12-08

申请人： Roland Proksa ,  Michael Grass ,  Thomas Köhler

发明人： Roland Proksa ,  Michael Grass ,  Thomas Köhler

IPC分类号： A61B600

CPC分类号： H05G1/30 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4085 ,  A61B6/4441 ,  A61B6/4464 ,  A61B6/583 ,  A61B6/585 ,  G01N23/04 ,  G06T11/006

摘要： Method and device for forming a 3D image of an object to be examined by combining at least two reconstruction images, acquired by an X-ray device, by weighted addition. Specifically, each reconstruction image is weighted with a respective weighting function which describes at least approximately the distribution of noise and/or the distribution of artifacts in the reconstruction image. The image quality of the resultant three-dimensional image is thus significantly improved.

摘要翻译： 用于通过组合由X射线装置获取的至少两个重建图像，通过加权相加来形成待检查对象的3D图像的方法和装置。 具体地，每个重建图像用相应的加权函数加权，该加权函数至少近似描述了重建图像中噪声的分布和/或伪影的分布。 因此，所得到的三维图像的图像质量显着提高。

公开(公告)号：US06168700A

公开(公告)日：2001-01-02

申请号：US09101648

申请日：1998-09-22

申请人： Thomas Köhler ,  Bernd Schumann

发明人： Thomas Köhler ,  Bernd Schumann

IPC分类号： G01N27407

CPC分类号： G01N27/4074 ,  G01N27/4075

摘要： A sensor serves to determine the concentration of oxidizable components in a gas mixture, in particular for determining saturated and unsaturated hydrocarbons by measuring the voltage between at least one measuring electrode and a reference electrode. The material for the measuring electrode is based on compounds of the eschynite class, including eschynites, euxenites and samarskites with general formula AB2O6, which have the general empirical formula A1-xB2-yB′y (O,OH,F)6±z and may be partially doped or may have occupancy defects.

摘要翻译： 传感器用于确定气体混合物中可氧化组分的浓度，特别是通过测量至少一个测量电极和参考电极之间的电压来确定饱和和不饱和烃。 用于测量电极的材料是基于具有通式AB 2 O 6的异子体类的化合物，其包括具有通式AB 2 O 6的异子体，euxenites和samalskite，其具有通用经验式A1-xB2-yB'y（O，OH，F）6±z和 可能是部分掺杂的或可能具有占用缺陷。

公开(公告)号：US07403587B2

公开(公告)日：2008-07-22

申请号：US10570088

申请日：2004-08-23

申请人： Claas Bontus ,  Thomas Köhler ,  Michael Grass

发明人： Claas Bontus ,  Thomas Köhler ,  Michael Grass

IPC分类号： A61B6/03

CPC分类号： A61B6/5217 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4028 ,  A61B6/5264 ,  A61B6/527 ,  A61B6/541 ,  G06T11/005 ,  G06T11/006 ,  G06T2211/412

摘要： The invention relates to a computer tomography method in which an examination area is passed through by a cone-shaped bundle of rays. The bundle of rays comes from a radiation source location which moves around the examination area on an overall trajectory. The overall trajectory consists of a first, closed partial trajectory, at least one second, closed partial trajectory and at least one third partial trajectory which connects the first and the at least one second partial trajectories to one another. Measured values which depend on the intensity in the bundle of rays on the other side of the examination area are acquired by means of a detector unit while the radiation source location is moving on the overall trajectory, and a CT image of the examination area is reconstructed from these measured values.

摘要翻译： 本发明涉及一种计算机断层摄影方法，其中检查区域通过锥形束的光束通过。 一束光线来自在总体轨迹上围绕检查区域移动的辐射源位置。 整个轨迹由第一，闭合的部分轨迹，至少一个第二，闭合的部分轨迹和至少一个将第一和第二部分轨迹相互连接的第三部分轨迹组成。 在辐射源位置在整个轨迹上移动的同时，通过检测器单元获取取决于检查区另一侧的光线束强度的测量值，并且重建检查区域的CT图像 从这些测量值。