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    System and method for image compression in X-ray imaging systems
    1.
    发明授权
    System and method for image compression in X-ray imaging systems 有权
    X射线成像系统中图像压缩的系统和方法

    公开(公告)号：US08942444B2

    公开(公告)日：2015-01-27

    申请号：US13588760

    申请日：2012-08-17

    申请人： James Zhengshe Liu ,  Richard Larry Anderton ,  Brian James Grekowicz ,  Bela Janos Kiraly

    发明人： James Zhengshe Liu ,  Richard Larry Anderton ,  Brian James Grekowicz ,  Bela Janos Kiraly

    IPC分类号： G06K9/00

    CPC分类号： G01T1/17 ,  A61B6/4405 ,  A61B6/563 ,  H04N5/32 ,  H04N5/378

    摘要： An imaging system includes an analog-to-digital converter configured to convert an analog pixel value into a first digital pixel value. The imaging system also includes an index value source configured to receive the first digital pixel value from the analog-to-digital converter and to generate a digital index value based on a comparison of the first digital pixel value to a digital reference value. In addition, the imaging system includes a transmitter in communication with the index value source and configured to transmit the digital index value. Further, the imaging system includes an image processing component configured to receive the digital index value and to generate a second digital pixel value based at least in part on the received digital index value and a lookup table of the image processing component.

    摘要翻译： 成像系统包括被配置为将模拟像素值转换为第一数字像素值的模数转换器。 成像系统还包括被配置为从模数转换器接收第一数字像素值并且基于第一数字像素值与数字参考值的比较来生成数字索引值的索引值源。 此外，成像系统包括与索引值源通信并被配置为发送数字索引值的发射器。 此外，成像系统包括图像处理部件，被配置为至少部分地基于所接收的数字索引值和图像处理部件的查找表来接收数字索引值并生成第二数字像素值。

    SYSTEM AND METHOD FOR IMAGE COMPRESSION IN X-RAY IMAGING SYSTEMS
    2.
    发明申请
    SYSTEM AND METHOD FOR IMAGE COMPRESSION IN X-RAY IMAGING SYSTEMS 有权
    X射线成像系统中图像压缩的系统与方法

    公开(公告)号：US20140050418A1

    公开(公告)日：2014-02-20

    申请号：US13588760

    申请日：2012-08-17

    申请人： James Zhengshe Liu ,  Richard Larry Anderton ,  Brian James Grekowicz ,  Bela Janos Kiraly

    发明人： James Zhengshe Liu ,  Richard Larry Anderton ,  Brian James Grekowicz ,  Bela Janos Kiraly

    IPC分类号： G06K9/38

    CPC分类号： G01T1/17 ,  A61B6/4405 ,  A61B6/563 ,  H04N5/32 ,  H04N5/378

    摘要： An imaging system includes an analog-to-digital converter configured to convert an analog pixel value into a first digital pixel value. The imaging system also includes an index value source configured to receive the first digital pixel value from the analog-to-digital converter and to generate a digital index value based on a comparison of the first digital pixel value to a digital reference value. In addition, the imaging system includes a transmitter in communication with the index value source and configured to transmit the digital index value. Further, the imaging system includes an image processing component configured to receive the digital index value and to generate a second digital pixel value based at least in part on the received digital index value and a lookup table of the image processing component.

    摘要翻译： 成像系统包括被配置为将模拟像素值转换为第一数字像素值的模数转换器。 成像系统还包括被配置为从模数转换器接收第一数字像素值并且基于第一数字像素值与数字参考值的比较来生成数字索引值的索引值源。 此外，成像系统包括与索引值源通信并被配置为发送数字索引值的发射器。 此外，成像系统包括图像处理部件，被配置为至少部分地基于所接收的数字索引值和图像处理部件的查找表来接收数字索引值并生成第二数字像素值。

    System and method for reducing grid line image artifacts
    3.
    发明授权
    System and method for reducing grid line image artifacts 有权
    减少网格线图像伪像的系统和方法

    公开(公告)号：US09230702B2

    公开(公告)日：2016-01-05

    申请号：US13588708

    申请日：2012-08-17

    申请人： James Zhengshe Liu ,  Richard Larry Anderton

    发明人： James Zhengshe Liu ,  Richard Larry Anderton

    IPC分类号： G21K1/02 ,  G21K1/10

    CPC分类号： G21K1/025 ,  G21K1/10 ,  Y10T29/49002

    摘要： An imaging system includes a detector configured to detect X-rays from an X-ray source. The detector includes multiple photodetector elements. The imaging system also includes an anti-scatter grid disposed over the detector, wherein the anti-scatter grid includes multiple radiation absorbing elements. At least a portion of one or more of the radiation absorbing elements of the multiple radiation absorbing elements is disposed on each photodetector element, and a total area of each respective portion of the one or more radiation absorbing elements disposed on each photodetector element is substantially equal.

    摘要翻译： 成像系统包括被配置为检测来自X射线源的X射线的检测器。 检测器包括多个光电探测元件。 成像系统还包括设置在检测器上方的防散射栅格，其中防散射栅格包括多个辐射吸收元件。 多个辐射吸收元件中的一个或多个辐射吸收元件的至少一部分设置在每个光电检测器元件上，并且设置在每个光电检测器元件上的一个或多个辐射吸收元件的每个相应部分的总面积基本相等 。

    SYSTEM AND METHOD FOR REDUCING GRID LINE IMAGE ARTIFACTS
    4.
    发明申请
    SYSTEM AND METHOD FOR REDUCING GRID LINE IMAGE ARTIFACTS 有权
    用于减少网格线图像的系统和方法

    公开(公告)号：US20140048713A1

    公开(公告)日：2014-02-20

    申请号：US13588708

    申请日：2012-08-17

    申请人： James Zhengshe Liu ,  Richard Larry Anderton

    发明人： James Zhengshe Liu ,  Richard Larry Anderton

    IPC分类号： G01T1/00 ,  G01T1/24 ,  G01R3/00 ,  G01T1/20

    CPC分类号： G21K1/025 ,  G21K1/10 ,  Y10T29/49002

    摘要： An imaging system includes a detector configured to detect X-rays from an X-ray source. The detector includes multiple photodetector elements. The imaging system also includes an anti-scatter grid disposed over the detector, wherein the anti-scatter grid includes multiple radiation absorbing elements. At least a portion of one or more of the radiation absorbing elements of the multiple radiation absorbing elements is disposed on each photodetector element, and a total area of each respective portion of the one or more radiation absorbing elements disposed on each photodetector element is substantially equal.

    摘要翻译： 成像系统包括被配置为检测来自X射线源的X射线的检测器。 检测器包括多个光电探测元件。 成像系统还包括设置在检测器上方的防散射栅格，其中防散射栅格包括多个辐射吸收元件。 多个辐射吸收元件中的一个或多个辐射吸收元件的至少一部分设置在每个光电检测器元件上，并且设置在每个光电检测器元件上的一个或多个辐射吸收元件的每个相应部分的总面积基本相等 。

    System and method for an adaptive morphology x-ray beam in an x-ray system
    5.
    发明授权
    System and method for an adaptive morphology x-ray beam in an x-ray system 有权
    X射线系统中自适应形态X射线束的系统和方法

    公开(公告)号：US07272208B2

    公开(公告)日：2007-09-18

    申请号：US10945649

    申请日：2004-09-21

    申请人： Dimitri Victorovich Yatsenko ,  Richard Larry Anderton

    发明人： Dimitri Victorovich Yatsenko ,  Richard Larry Anderton

    IPC分类号： G21K1/00 ,  G21K3/00 ,  H05G1/64

    CPC分类号： G21K1/10 ,  A61B6/032 ,  A61B6/4035 ,  A61B6/542

    摘要： The present invention provides for an x-ray system and method using dynamic automated spatial modulation of an x-ray beam. The system includes an x-ray source transmitting a spatially modulated beam towards an object to be imaged, an x-ray detector receiving the beam and measuring a plurality of intensities across the beam, a beam processor controlling the beam intensity profile, and an image processor producing an output image signal. The detector produces a residual image based on at least the intensities measured at the detector. The beam intensity profile may be based on at least some of the following: (a) the residual image from the x-ray detector, (b) current beam intensities, (c) regions on interest in the image, and (d) predicted or measured object motion in the image. The system's output image is based on one or more of said residual image and said beam intensity signal.

    摘要翻译： 本发明提供一种使用x射线束的动态自动空间调制的X射线系统和方法。 该系统包括将空间调制光束传送到待成像对象的x射线源，接收光束的X射线检测器和横跨束测量多个强度，控制束强度分布的束处理器和图像 产生输出图像信号的处理器。 检测器至少基于检测器测得的强度产生残留图像。 光束强度分布可以基于以下至少一些：（a）来自X射线检测器的残差图像，（b）当前束强度，（c）图像中感兴趣的区域，以及（d）预测 或在图像中测量的物体运动。 系统的输出图像基于所述残留图像和所述束强度信号中的一个或多个。

    System and method for determining dose area product in an X-ray imaging system
    6.
    发明授权
    System and method for determining dose area product in an X-ray imaging system 有权
    用于确定X射线成像系统中的剂量面积乘积的系统和方法

    公开(公告)号：US06330299B1

    公开(公告)日：2001-12-11

    申请号：US09591418

    申请日：2000-06-10

    申请人： Steven Emerson Curtis ,  Richard Larry Anderton ,  Steven James Brown ,  David Ellis Barker ,  Matthew Scott Curtis

    发明人： Steven Emerson Curtis ,  Richard Larry Anderton ,  Steven James Brown ,  David Ellis Barker ,  Matthew Scott Curtis

    IPC分类号： G01N2304

    CPC分类号： G01T1/14 ,  G01N23/04

    摘要： A system an method for determining the Dose Area Product (DAP) in an X-ray imaging system is provided. The present system constructs a pre-determined parameter space describing the DAP contour over ranges of typical imaging parameters. Later, when the employed in clinical imaging, a DAP processor on board the imaging system received a set of the imaging parameters being employed. The DAP applies the set of parameters to the parameter space to interpolate the DAP being delivered by the clinical imaging system. The present system may be individually calibrated to a specific X-ray imaging system to provide more optimal DAP values. Additionally, in imaging system employing an asymmetric shutter, such as a one-leaf shutter, the present system may determine a rotational scale factor for the DAP based on the rotation of the shutter. The rotational scale factor may also be calibrated to an individual X-ray imaging system.

    摘要翻译： 提供了一种用于确定X射线成像系统中的剂量面积积（DAP）的方法。 本系统在典型成像参数的范围内构建描述DAP轮廓的预定参数空间。 之后，当临床成像中使用时，成像系统上的DAP处理器接收到一组成像参数。 DAP将参数集合应用于参数空间以内插由临床成像系统递送的DAP。 可以将本系统单独地校准到特定的X射线成像系统以提供更优化的DAP值。 另外，在使用诸如单叶快门的非对称快门的成像系统中，本系统可以基于快门的旋转来确定DAP的旋转比例因子。 旋转比例因子也可以被校准到单独的X射线成像系统。