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    Correction methods and apparatus for digital x-ray imaging
    21.
    发明授权
    Correction methods and apparatus for digital x-ray imaging 有权
    数字X射线成像的校正方法和装置

    公开(公告)号：US06542575B1

    公开(公告)日：2003-04-01

    申请号：US09386701

    申请日：1999-08-31

    Applicant: Scott Schubert ,  Ping Xue

    Inventor： Scott Schubert ,  Ping Xue

    IPC: H05G164

    CPC classification number: H04N5/217 ,  A61B6/4494 ,  A61B6/5252 ,  H04N5/32

    Abstract: In recent years, x-ray imaging, which has been used to diagnose millions of illnesses and injuries, has evolved to use digital imaging instead of photographic film as a recording medium. Digital x-ray systems typically include an x-ray source, an x-ray focusing grid, and an array of light or x-ray detectors. Because of detector imperfections and other system factors, such as x-ray field non-uniformity and grid artifacts, digital x-ray images are often corrected, or compensated, before use. To this end, many digital x-ray systems include numerous application-specific correction maps, which unfortunately require regular maintenance that is not only time-consuming but expensive in terms of system downtime. Accordingly, the inventors devised new methods and systems for correcting application images that require maintenance of fewer correction maps. One exemplary implementation determines grid-only and non-grid correction maps and corrects application images based on a combination of these correction maps. Other aspects of the invention include automatic detection and correction of grid images in application images and computer-readable mediums which store software for computing and applying grid-only and non-grid correction maps.

    Abstract translation: 近年来，已经用于诊断数百万疾病和损伤的X射线成像已经演变为使用数字成像而不是摄影胶片作为记录介质。 数字X射线系统通常包括x射线源，x射线聚焦网格和光或X射线探测器阵列。 由于检测器缺陷和其他系统因素（例如x射线场不均匀性和网格伪影），数字X射线图像经常在使用前进行校正或补偿。 为此，许多数字X射线系统包括许多特定于应用的校正图，不幸的是需要定期维护，这不仅耗费时间，而且在系统停机时也是昂贵的。 因此，发明人设计了用于校正需要维护较少校正图的应用图像的新方法和系统。 一个示例性实现确定基于网格和非网格校正映射并且基于这些校正映射的组合来校正应用图像。 本发明的其他方面包括在应用图像中的网格图像的自动检测和校正以及存储用于计算和应用网格和非网格校正图的软件的计算机可读介质。

    Imaging system with X-ray beam angulation compensation
    22.
    发明授权
    Imaging system with X-ray beam angulation compensation 有权
    成像系统具有X射线束角度补偿

    公开(公告)号：US06422749B1

    公开(公告)日：2002-07-23

    申请号：US09615475

    申请日：2000-07-13

    Applicant: Vincent S. Polkus ,  Alexander Ganin ,  Jon C. Omernick ,  Ping Xue

    Inventor： Vincent S. Polkus ,  Alexander Ganin ,  Jon C. Omernick ,  Ping Xue

    IPC: A61B608

    CPC classification number: A61B6/00 ,  A61B6/08

    Abstract: In an X-ray imaging system, an arrangement is provided for readily aligning the system detector with the X-ray beam field, i.e., the projection of the X-ray beam into the plane of the detector. The arrangement is adapted for correcting or compensating for distortion which results from X-ray beam angulation, wherein the beam is projected toward the detector plane at an angle of less than 90°. Initially, the system X-ray tube is positioned to project the X-ray beam at a given beam direction angle &phgr;. A beam width angle &ggr;1 is then computed, from the given angle &phgr; and from specified values of the source-to-image distance and the length of the projected beam field. Thereupon, an offset value is determined from &ggr;1, &phgr; and the source-to-image distance to locate the geometric center of the beam field, and the center of the detector is aligned therewith.

    Abstract translation: 在X射线成像系统中，提供了一种用于容易地将系统检测器与X射线束场对准的装置，即将X射线束投影到检测器的平面中。 该装置适于校正或补偿由X射线束角度变形引起的变形，其中光束以小于90°的角度朝向检测器平面投影。 最初，系统X射线管被定位成以给定的光束方向角度phi投射X射线束。 然后从给定角度phi和源到图像距离的特定值和投影光束场的长度来计算波束宽度角度γ1。 因此，从γ1，phi和源到图像距离确定偏移值以定位波束场的几何中心，并且检测器的中心与其对准。

    Crate tool
    26.
    发明授权
    Crate tool 有权
    箱子工具

    公开(公告)号：US08165930B2

    公开(公告)日：2012-04-24

    申请号：US12275651

    申请日：2008-11-21

    Applicant: Marshall W. Harnish ,  Terrill Willard Hendrickson ,  Ping Xue ,  James Michael Parker ,  Leonard H. Schifter ,  Stanley W. Engdahl

    Inventor： Marshall W. Harnish ,  Terrill Willard Hendrickson ,  Ping Xue ,  James Michael Parker ,  Leonard H. Schifter ,  Stanley W. Engdahl

    IPC: G06Q10/00 ,  G06F17/30

    CPC classification number: G06F21/57 ,  G06Q10/087

    Abstract: A computer implemented method, apparatus, and computer program product for processing aircraft software parts. A crate containing an aircraft software part is received from a source. Signatures are validated for the crate and the aircraft software part. If the signatures are valid, the crate is unpacked. The contents of the incoming crate are displayed. The aircraft software part is unpacked. Responsive to a request to upload the stored part to a library in the aircraft software part management apparatus, a determination is made as to whether the stored part meets a policy. If the stored part meets the policy, the part is signed. The signed part is placed in a crate and is signed to form a signed crate wherein signatures for the signed aircraft software part and the signed crate are different from the set of signatures in the incoming crate. The signed crate is sent to the library.

    Abstract translation: 一种用于处理飞行器软件部件的计算机实现的方法，装置和计算机程序产品。 从源头收到包含飞机软件部件的包装箱。 签字对于箱子和飞机软件部分进行验证。 如果签名有效，则打包包装箱。 显示进货箱的内容。 飞机软件部分已拆包。 响应于将存储的部件上传到飞行器软件部件管理装置中的库的请求，确定所存储的部分是否符合策略。 如果存储的部分符合策略，则部分被签名。 签署的部分放在一个箱子中，并签署，以形成一个签名的箱子，其中签署的飞机软件部分和签名的箱子的签名与进入的箱子中的签名集不同。 签署的箱子发送到图书馆。

    Gain Calibration and Correction Technique for Digital Imaging Systems
    28.
    发明申请
    Gain Calibration and Correction Technique for Digital Imaging Systems 有权
    数字成像系统的增益校准和校正技术

    公开(公告)号：US20100183124A1

    公开(公告)日：2010-07-22

    申请号：US12356488

    申请日：2009-01-20

    Applicant: James Zhengshe Liu ,  John Lamberty ,  Ping Xue ,  Donald Langler

    Inventor： James Zhengshe Liu ,  John Lamberty ,  Ping Xue ,  Donald Langler

    IPC: G01D18/00

    CPC classification number: H04N5/3651 ,  A61B6/585 ,  H04N5/32 ,  H04N5/3655

    Abstract: A gain correction and calibration technique for digital imaging systems is provided. In one embodiment, a method may include acquiring a plurality of dark images via a digital detector of an X-ray system. Acquiring the plurality of dark images may include acquiring data from a plurality of data channels of the digital detector during an analog test mode of the digital detector in which calibration voltages are applied to the data channels. The method may also include calibrating a channel gain map of the detector based on the plurality of dark images. Additional systems, methods, and devices are also disclosed.

    Abstract translation: 提供了数字成像系统的增益校正和校准技术。 在一个实施例中，一种方法可以包括通过X射线系统的数字检测器获取多个暗图像。 获取多个暗图像可以包括在其中将校准电压施加到数据通道的数字检测器的模拟测试模式期间从数字检测器的多个数据通道获取数据。 该方法还可以包括基于多个暗图像来校准检测器的通道增益图。 还公开了附加的系统，方法和装置。

    Systems, methods and apparatus to offset correction of X-ray images
    30.
    发明申请
    Systems, methods and apparatus to offset correction of X-ray images 有权
    补偿X射线图像校正的系统，方法和装置

    公开(公告)号：US20060291624A1

    公开(公告)日：2006-12-28

    申请号：US11165775

    申请日：2005-06-25

    Applicant: Ping Xue ,  Donald Langler

    Inventor： Ping Xue ,  Donald Langler

    IPC: H05G1/64

    CPC classification number: G03B42/023 ,  H04N5/32 ,  H04N5/3651

    Abstract: Systems and methods are provided for offset correction of images from a flat panel detector. In some embodiments, the apparatus and method develops one or more offset maps, acquired during system idle, for the imaging system at a plurality of exposure windows. In some embodiments, exposure parameters acquired for the imaging system before image acquisition are used to select an offset map to subtract from subsequent X-ray images. In some further embodiments, executable instructions are disclosed for directing a processor to compile one or more offset map and exposure parameters to subtract based on a selected offset map noise elements from X-ray images and thereby minimizing the time between image acquisition and display of processed images.

    Abstract translation: 提供了系统和方法用于偏移校正来自平板检测器的图像。 在一些实施例中，该装置和方法开发在多个曝光窗口处的成像系统的系统空闲期间获取的一个或多个偏移映射。 在一些实施例中，使用在图像获取之前为成像系统获取的曝光参数来选择偏移映射以从后续X射线图像中减去。 在一些另外的实施例中，公开了可执行指令，用于指示处理器编译一个或多个偏移映射和曝光参数，以便基于来自X射线图像的所选择的偏移映射噪声元素减去，从而最小化图像获取和处理的显示之间的时间 图片。

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