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42 条记录 (耗时 0.031 秒)

    SYSTEM AND METHOD OF ELIMINATING IMAGE ARTIFACTS
    12.
    发明申请
    SYSTEM AND METHOD OF ELIMINATING IMAGE ARTIFACTS 有权
    消除影像艺术的系统和方法

    公开(公告)号：US20110139993A1

    公开(公告)日：2011-06-16

    申请号：US12637069

    申请日：2009-12-14

    申请人： James Zhengshe Liu ,  Feng Gao ,  Kenneth Scott Kump

    发明人： James Zhengshe Liu ,  Feng Gao ,  Kenneth Scott Kump

    IPC分类号： G01T1/24

    CPC分类号： H04N5/32 ,  A61B6/508 ,  A61B6/5258 ,  H04N5/3577

    摘要： A system and method for eliminating image artifacts caused by electromagnetic interference (EMI) on a digital x-ray detector. The system and method includes a digital x-ray detector panel having an array of pixels in rows and columns, with a plurality of data lines coupled to the columns of pixels and a plurality of scan lines coupled to the rows of pixels. The system and method uses certain photodiodes in a row of the pixel array for measuring EMI with corresponding scan line and FETs deactivated and eliminating the EMI and image artifacts with the remaining photodiodes in the row with corresponding scan line and FETs activated.

    摘要翻译： 一种用于消除由数字X射线检测器上的电磁干扰（EMI）引起的图像伪影的系统和方法。 该系统和方法包括数字X射线检测器面板，其具有行和列中的像素阵列，多个数据线耦合到像素列，以及耦合到像素行的多条扫描线。 该系统和方法使用像素阵列的一行中的某些光电二极管来测量具有相应扫描线的EMI，并且FET被去激活，并且消除了具有相应扫描线和FET的行中剩余的光电二极管的EMI和图像伪影。

    Artifact reduction system and method for radiological imaging system
    13.
    发明授权
    Artifact reduction system and method for radiological imaging system 失效
    放射成像系统的神器减少系统和方法

    公开(公告)号：US07649979B2

    公开(公告)日：2010-01-19

    申请号：US12124355

    申请日：2008-05-21

    申请人： James Zhengshe Liu ,  Tiantian Zhang ,  Kenneth Scott Kump ,  Jingyi Liang ,  Chuande Liu ,  Kadri Nizar Jabri

    发明人： James Zhengshe Liu ,  Tiantian Zhang ,  Kenneth Scott Kump ,  Jingyi Liang ,  Chuande Liu ,  Kadri Nizar Jabri

    IPC分类号： H05G1/64

    CPC分类号： H04N5/32 ,  H04N5/3577

    摘要： The effects of electromagnetic interference (EMI) on X-ray image data is corrected by characterizing the EMI and processing the image data to subtract the EMI effects from the image data. The X-ray image data, along with offset data, are collected in a conventional manner, affected by EMI if present, and EMI-characterizing data is immediately collected thereafter by disabling rows of a digital detector (FET off). The EMI-characterizing data, then, is not affected by the presence of image data, and can be used to characterize the amplitude and frequency of the EMI. The EMI-characterizing data is assured of being in phase with the collected image and offset data due to its collection in the same image acquisition sequence immediately following the collection of image and offset data. Artifacts due to the presence of EMI are thus eliminated from reconstructed images based upon the corrected data.

    摘要翻译： 电磁干扰（EMI）对X射线图像数据的影响通过表征EMI和处理图像数据来校正，以从图像数据中减去EMI效应。 X射线图像数据以及偏移数据以常规方式收集，受EMI影响（如果存在），并且EMI特征数据立即收集，此后通过禁用数字检测器（FET关闭）的行。 EMI表征数据然后不受图像数据的存在的影响，并且可以用于表征EMI的幅度和频率。 EMI特征数据被确保与收集的图像和偏移数据同步，这是由于其在收集图像和偏移数据之后的相同图像采集序列中的收集。 因此，由于存在EMI的人为因素基于校正数据而从重构图像中消除。

    ENERGY DETECTOR AND RELATED APPARATUS
    14.
    发明申请
    ENERGY DETECTOR AND RELATED APPARATUS 有权
    能源检测器及相关设备

    公开(公告)号：US20110233417A1

    公开(公告)日：2011-09-29

    申请号：US13156514

    申请日：2011-06-09

    申请人： James Zhengshe Liu ,  Kenneth Scott Kump ,  Habib Vafi

    发明人： James Zhengshe Liu ,  Kenneth Scott Kump ,  Habib Vafi

    IPC分类号： G01T1/24 ,  G21F1/12

    CPC分类号： A61B6/4405 ,  A61B6/508

    摘要： A portable x-ray detector is disclosed that includes an x-ray detecting member and a user removable electromagnetic interference (EMI) shielding member. The user removable EMI shielding member is positioned to at least partially magnetically shield the x-ray detecting member of the portable x-ray detector by redirecting an impinging magnetic field around the x-ray detecting member. The user removable EMI shielding member includes a first magnetic shielding layer, a second magnetic shielding layer, and an intervening material, other than the x-ray detecting member, between the first magnetic shielding layer and the second magnetic shielding layer.

    摘要翻译： 公开了一种便携式x射线检测器，其包括X射线检测构件和用户可移除的电磁干扰（EMI）屏蔽构件。 用户可拆卸的EMI屏蔽构件被定位成至少部分地磁性地屏蔽便携式x射线检测器的x射线检测构件，通过重新引导围绕X射线检测构件的入射磁场。 用户可拆卸的EMI屏蔽构件包括第一磁屏蔽层，第二磁屏蔽层和除了X射线检测构件之外的介于第一磁屏蔽层和第二磁屏蔽层之间的中间材料。

    System and method of eliminating image artifacts
    16.
    发明授权
    System and method of eliminating image artifacts 有权
    消除图像伪像的系统和方法

    公开(公告)号：US08217358B2

    公开(公告)日：2012-07-10

    申请号：US12637069

    申请日：2009-12-14

    申请人： James Zhengshe Liu ,  Feng Gao ,  Kenneth Scott Kump

    发明人： James Zhengshe Liu ,  Feng Gao ,  Kenneth Scott Kump

    IPC分类号： G01T1/20

    CPC分类号： H04N5/32 ,  A61B6/508 ,  A61B6/5258 ,  H04N5/3577

    摘要： A system and method for eliminating image artifacts caused by electromagnetic interference (EMI) on a digital x-ray detector. The system and method includes a digital x-ray detector panel having an array of pixels in rows and columns, with a plurality of data lines coupled to the columns of pixels and a plurality of scan lines coupled to the rows of pixels. The system and method uses certain photodiodes in a row of the pixel array for measuring EMI with corresponding scan line and FETs deactivated and eliminating the EMI and image artifacts with the remaining photodiodes in the row with corresponding scan line and FETs activated.

    摘要翻译： 一种用于消除由数字X射线检测器上的电磁干扰（EMI）引起的图像伪影的系统和方法。 该系统和方法包括数字X射线检测器面板，其具有行和列中的像素阵列，多个数据线耦合到像素列，以及耦合到像素行的多条扫描线。 该系统和方法使用像素阵列的一行中的某些光电二极管来测量具有相应扫描线的EMI，并且FET被去激活，并且消除了具有相应扫描线和FET的行中剩余的光电二极管的EMI和图像伪影。

    Method of testing a medical imaging device
    17.
    发明授权
    Method of testing a medical imaging device 有权
    测试医疗成像设备的方法

    公开(公告)号：US07324628B2

    公开(公告)日：2008-01-29

    申请号：US11197029

    申请日：2005-08-04

    申请人： James Zhengshe Liu ,  Olgun Kukrer ,  Kenneth Scott Kump ,  Jon C. Omernick

    发明人： James Zhengshe Liu ,  Olgun Kukrer ,  Kenneth Scott Kump ,  Jon C. Omernick

    IPC分类号： H05G1/54 ,  G01N23/04

    CPC分类号： A61B6/583

    摘要： A method of testing a portable x-ray device includes sensing an environmental stimulus experienced by the portable x-ray device, transmitting a signal related to the environmental stimulus to a processing unit, determining whether the signal meets an alert threshold, activating a detector of the portable x-ray device if the signal meets the alert threshold, producing a gray image through the activating step, comparing the gray image produced through the activating step with a control gray image corresponding to a properly functioning detector.

    摘要翻译： 一种测试便携式x射线设备的方法包括：感测由便携式x射线设备经历的环境刺激，将与环境刺激相关的信号传送到处理单元，确定信号是否满足警报阈值，激活检测器 便携式x射线装置，如果信号满足警报阈值，通过激活步骤产生灰度图像，将通过激活步骤产生的灰度图像与对应于适当功能的检测器的控制灰度图像进行比较。

    Energy detector and related apparatus
    19.
    发明授权
    Energy detector and related apparatus 有权
    能量探测器及相关设备

    公开(公告)号：US08421014B2

    公开(公告)日：2013-04-16

    申请号：US13156514

    申请日：2011-06-09

    申请人： James Zhengshe Liu ,  Kenneth Scott Kump ,  Habib Vafi

    发明人： James Zhengshe Liu ,  Kenneth Scott Kump ,  Habib Vafi

    IPC分类号： G01T1/00 ,  H01L27/146

    CPC分类号： A61B6/4405 ,  A61B6/508

    摘要： A portable x-ray detector is disclosed that includes an x-ray detecting member and a user removable electromagnetic interference (EMI) shielding member. The user removable EMI shielding member is positioned to at least partially magnetically shield the x-ray detecting member of the portable x-ray detector by redirecting an impinging magnetic field around the x-ray detecting member. The user removable EMI shielding member includes a first magnetic shielding layer, a second magnetic shielding layer, and an intervening material, other than the x-ray detecting member, between the first magnetic shielding layer and the second magnetic shielding layer.

    摘要翻译： 公开了一种便携式x射线检测器，其包括X射线检测构件和用户可移除的电磁干扰（EMI）屏蔽构件。 用户可拆卸的EMI屏蔽构件被定位成至少部分地磁性地屏蔽便携式x射线检测器的x射线检测构件，通过重新引导围绕X射线检测构件的入射磁场。 用户可拆卸的EMI屏蔽构件包括第一磁屏蔽层，第二磁屏蔽层和除了X射线检测构件之外的介于第一磁屏蔽层和第二磁屏蔽层之间的中间材料。

    Digital x-ray detector assembly
    20.
    发明授权
    Digital x-ray detector assembly 有权
    数字式X光检测器组件

    公开(公告)号：US07745797B1

    公开(公告)日：2010-06-29

    申请号：US12396730

    申请日：2009-03-03

    申请人： James Zhengshe Liu ,  Chen Zhang ,  Habib Vafi ,  Zhimin Sun ,  Kenneth Scott Kump ,  Clifford Bueno ,  Clarence Lavere Gordon, III

    发明人： James Zhengshe Liu ,  Chen Zhang ,  Habib Vafi ,  Zhimin Sun ,  Kenneth Scott Kump ,  Clifford Bueno ,  Clarence Lavere Gordon, III

    IPC分类号： H01L27/146 ,  G01T1/20

    CPC分类号： G01T1/00 ,  H01L27/14663

    摘要： A digital radiography imaging system having a digital x-ray detector that is easy to manufacture and produces high quality images with no artifacts. The digital x-ray detector including a front cover, a scintillator screen member, a light imager panel member having a surface in direct contact with an adjoining surface of the scintillator screen member, a compressible member positioned between the front cover and the scintillator screen member to apply pressure to the scintillator screen member and the adjoining surface between the scintillator screen member and the light imager panel member, electronic circuitry mounted on at least one printed circuit board and coupled to the light imager panel, a back cover, and a plurality of fasteners for fastening the front cover to the back cover.

    摘要翻译： 一种具有数字X射线检测器的数字射线成像系统，其易于制造并且产生没有伪像的高质量图像。 数字X射线检测器，包括前盖，闪烁体屏幕构件，具有与闪烁体屏幕构件的邻接表面直接接触的表面的光成像器面板构件，位于前盖和闪烁体屏幕构件之间的可压缩构件 向闪烁体屏幕构件和闪烁体屏幕构件和光成像仪面板构件之间的相邻表面施加压力，安装在至少一个印刷电路板上并耦合到光成像仪面板的电子电路，后盖和多个 用于将前盖固定到后盖的紧固件。