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公开(公告)号：US07003145B2
公开(公告)日：2006-02-21
申请号：US09755238
申请日：2001-01-05
IPC分类号： G06K9/00
摘要： A technique for selectively processing data from a digital detector includes determining an asymmetrical image area produced by orientation of a radiation source assembly. The assembly may include a radiation source and a collimator, which may be separately orientable. The image area is computed based upon the orientation of the radiation source assembly that projects a radiation beam towards an imaging plane. Image data from a detector within the imaging plane is selectively processed to improve computational efficiency. The system may also determine whether the image area falls within the imaging surface of the detector and inform an operator or inhibit an exposure if such is not the case.
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公开(公告)号：US06393100B1
公开(公告)日：2002-05-21
申请号：US09475854
申请日：1999-12-30
IPC分类号： G21K104
摘要： Collimator apparatus is provided for an X-ray imaging system comprising an X-ray tube disposed to project an X-ray beam, and a detector spaced apart from the X-ray tube for receiving X-rays of the beam within an Active Imaging Area (AIA). The apparatus comprises a first collimator positioned along the path of the beam, the first collimator being vertically adjustable, and being operable to symmetrically collimate the beam. The apparatus further comprises a second collimating device positioned between the first collimator and the detector. The second collimating device limits the uppermost rays of the symmetrically collimated beam which reach the detector to a predetermined upper boundary. Thus, the second collimating device serves to fix the upper edge of the AIA on the detector. At the same time, the second collimating device allows the lowermost rays of the symmetrically collimated beam reaching the detector, which define the lower edge of the AIA, to have a lower boundary which is determined by selective adjustment of the first collimator.
摘要翻译： 提供了一种用于X射线成像系统的准直仪装置，该X射线成像系统包括设置成投影X射线束的X射线管和与X射线管间隔开的检测器，用于在主动成像区域内接收光束的X射线 （AIA）。 该装置包括沿着光束的路径定位的第一准直仪，第一准直仪是可垂直调节的，并且可操作以对称地准直光束。 该装置还包括位于第一准直仪和检测器之间的第二准直装置。 第二准直装置将到达检测器的对称准直光束的最上面的光线限制到预定的上边界。 因此，第二准直装置用于将AIA的上边缘固定在检测器上。 同时，第二准直装置允许通过选择性调整第一准直器来确定限定AIA的下边缘的对称准直光束的最低射线到达检测器的下边界。
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公开(公告)号：US07013037B2
公开(公告)日：2006-03-14
申请号：US10323967
申请日：2002-12-18
IPC分类号： G06K9/00
摘要： A technique for selectively processing data from a digital detector includes determining an image area produced by orientation of a radiation source assembly. The assembly may include a radiation source and a collimator, which may be separately orientable. The image area is computed based upon the orientation of the radiation source assembly that projects a radiation beam towards an imaging plane. Image data from a detector within the imaging plane is selectively processed to improve computational efficiency. The system may also determine whether the image area falls within the imaging surface of the detector and inform an operator or inhibit an exposure if such is not the case.
摘要翻译： 用于从数字检测器选择性地处理数据的技术包括确定由辐射源组件的取向产生的图像区域。 组件可以包括可以单独定向的辐射源和准直器。 基于将辐射束投影到成像平面的辐射源组件的取向来计算图像区域。 选择性地处理来自成像平面内的检测器的图像数据，以提高计算效率。 系统还可以确定图像区域是否落入检测器的成像表面内，并且如果不是这种情况，则通知操作者或抑制曝光。
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公开(公告)号：US06302580B1
公开(公告)日：2001-10-16
申请号：US09199943
申请日：1998-11-25
IPC分类号： H05G102
CPC分类号： A61B6/4476 , A61B6/587
摘要： A radiographic imaging system including a solid state x-ray imager is disclosed. An x-ray tube is supported in a vertical x-ray tube support system alternately or in addition to a overhead angulating x-ray tube support system. A solid state x-ray imager is supported in a wall stand alternately or in addition to an angulating table stand. Associated sensors sense the position of the solid state x-ray imager, and a position controller adjusts the position of the x-ray tube such that the x-ray tube is positioned at the center of the solid state x-ray imager. Readout circuitry receives the analog image from the solid state x-ray imager and transmits the corresponding digital information to a digital processor for image creation or manipulation. The digital image may than be displayed on a digital imager acquisition and display system.
摘要翻译： 公开了一种包括固态X射线成像仪的射线成像系统。 x射线管交替地或支撑在垂直X射线管支撑系统中，除了架空角度X射线管支撑系统之外。 固态x射线成像仪交替地支撑在墙壁支架中，或者除了角度台架之外。 相关联的传感器感测固态X射线成像仪的位置，并且位置控制器调节X射线管的位置，使得X射线管位于固态X射线成像仪的中心。 读出电路从固态X射线成像仪接收模拟图像，并将相应的数字信息发送到数字处理器以进行图像创建或操纵。 数字图像可能不会显示在数字成像仪采集和显示系统上。
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