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    • 5. 发明授权
    • Method for the selection of a new detector module for X-ray computer tomography
    • 用于选择用于X射线计算机断层摄影的新检测器模块的方法
    • US06932507B2
    • 2005-08-23
    • US10485952
    • 2002-08-02
    • Helmut Winkelmann
    • Helmut Winkelmann
    • G01T1/20A61B6/03G01D18/00
    • G01T7/00A61B6/032A61B6/4411A61B6/4494A61B6/581
    • A method is for selection of a new detector module as replacement for a detector module built in to a detector of an X-ray computer tomograph. The method includes production of the detector module, using component with an unique electronically-stored code and generation of a data set containing the essential parameters of each detector module with reference to the code of each detector module. The method further includes storage of the data set and the codes in an electronic databank and electronic reading of the code of the detector module for exchange and comparison of the relevant stored data set with the data sets for new detector modules. Finally, the method includes selection of a new detector module according to set selection criteria.
    • 一种用于选择新的检测器模块作为内置于X射线计算机断层摄影机的检测​​器中的检测器模块的替代方法。 该方法包括生成检测器模块,使用具有唯一的电子存储代码的组件,并且参考每个检测器模块的代码生成包含每个检测器模块的基本参数的数据集。 该方法还包括将数据集和代码存储在电子数据库中,并对检测器模块的代码进行电子阅读,以便将相关存储的数据集与新检测器模块的数据集进行交换和比较。 最后,该方法包括根据设定的选择标准选择新的检测器模块。
    • 8. 发明授权
    • Distance sensor for determining a distance between two relatively
movable members by measuring a time during which a measuring mark is in
a light path between a light transmitter and a light receiver
    • 距离传感器,用于通过测量测量标记在光发射器和光接收器之间的光路中的时间来确定两个相对可移动构件之间的距离
    • US5512761A
    • 1996-04-30
    • US296590
    • 1994-08-29
    • Helmut Winkelmann
    • Helmut Winkelmann
    • G01B11/00A61B6/08A61B6/10G01B11/14G01N21/00
    • A61B6/102A61B6/08G01B11/14
    • A distance sensor is provided for supplying a precise distance signal identifying the spacing between two components in a computed tomography apparatus which move relative to each other. The two components may be, for example, the rotating scan frame and the stationary gantry inside of which the scan frame rotates. The distance sensor includes a measuring mark mounted on one of the components and having a geometrical shape, such as the shape of a triangle tapering toward the other component, so that the measuring mark influences, such as by interrupting, the path of a measuring light ray which is emitted from the other of the components. The time during which the measuring mark influences the measuring light ray is dependent on the spacing of the components from each other. A signal indicative of this spacing is supplied to an evaluation circuit, and can be used to identify deviations from a specified rotational center of the scan frame with a high degree of resolution, so that appropriate correction steps can be undertaken.
    • 距离传感器被提供用于提供精确的距离信号,该距离信号识别相对于彼此移动的计算机断层摄影装置中的两个部件之间的间隔。 两个部件可以是例如扫描框架旋转的旋转扫描框架和固定机架。 距离传感器包括安装在其中一个部件上并具有几何形状的测量标记,例如朝向另一个部件逐渐变细的三角形状,使得测量标记例如通过中断测量光的路径 射线从另一个部件发射。 测量标记影响测量光线的时间取决于组件彼此间隔。 指示该间隔的信号被提供给评估电路,并且可以用于以高分辨率识别与指定的扫描框架的旋转中心的偏差,从而可以进行适当的校正步骤。
    • 10. 发明申请
    • Image data acquisition system of an x-ray, CT or MRI machine with an integrated data compression module for data reduction of acquired image data
    • 具有集成数据压缩模块的x射线,CT或MRI机器的图像数据采集系统,用于获取图像数据的数据缩减
    • US20080292168A1
    • 2008-11-27
    • US12081275
    • 2008-04-14
    • Helmut Winkelmann
    • Helmut Winkelmann
    • G06K9/00G06K9/36
    • A61B6/032G06F19/321
    • A data acquisition and data reduction system (DERS) are disclosed for acquiring and compressing image data generated and loaded by an image data detection unit (DE) of an imaging system (BGS) in which the data acquisition and data reduction system (DERS) is integrated. The imaging system (BGS) can, for example, in this case be a conventional x-ray, computed tomography or magnetic resonance tomography machine for high resolution radiographic, CT or MRI based display of interesting tissue regions of a patient to be examined. At least one embodiment of the present invention relates chiefly to a data compression module (DKM) integrated in the front end of the data acquisition and data reduction system (DERS), and to an associated method for acquiring comprised image data with the aid of which the data throughput rate of an image processing and image visualization system (BVS, AB) connected to the x-ray, CT or MRI machine can be improved. In order to accomplish the data reduction, in addition to loss free, reversible compression and coding methods that are operated, for example, using the principle of run length coding, Shannon Fano entropy coding, Huffman coding or Lempel Ziv Welch coding, it is also possible in at least one embodiment to use lossy compression and coding methods that are based, for example on the principle of discrete cosine transformation, wavelet transformation or geometric or fractal image compression.
    • 公开了一种数据采集和数据缩减系统(DERS),用于获取和压缩由数据采集和数据缩减系统(DERS)为其的成像系统(BGS)的图像数据检测单元(DE)生成和加载的图像数据 集成。 例如,在这种情况下,成像系统(BGS)可以是常规的X射线,计算机断层扫描或磁共振断层摄影机,用于高分辨率射线照相,CT或MRI显示待检查患者的感兴趣组织区域。 本发明的至少一个实施例主要涉及集成在数据采集和数据缩减系统(DERS)的前端的数据压缩模块(DKM),以及用于获取包含图像数据的相关方法 可以提高连接到X射线,CT或MRI机器的图像处理和图像可视化系统(BVS,AB)的数据吞吐率。 为了实现数据缩减,除了例如使用运行长度编码,香农Fano熵编码,霍夫曼编码或Lempel Ziv Welch编码的原理进行操作的无损,可逆压缩和编码方法之外,还是 在至少一个实施例中可能使用例如基于离散余弦变换,小波变换或几何或分形图像压缩的原理的有损压缩和编码方法。