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    Method and apparatus for processing a fluoroscopic image
    3.
    发明授权
    Method and apparatus for processing a fluoroscopic image 有权
    用于处理透视图像的方法和装置

    公开(公告)号：US06621887B2

    公开(公告)日：2003-09-16

    申请号：US09977474

    申请日：2001-10-15

    Applicant: Douglas Albagli ,  Brian David Yanoff ,  John Eric Tkaczyk ,  George Edward Possin ,  Ping Xue

    Inventor： Douglas Albagli ,  Brian David Yanoff ,  John Eric Tkaczyk ,  George Edward Possin ,  Ping Xue

    IPC: G03C900

    CPC classification number: H04N5/361 ,  A61B6/583 ,  A61B6/585 ,  H04N5/325

    Abstract: In one aspect of the invention a method for processing a fluoroscopic image is provided. The method includes scanning an object with an imaging system including at least one radiation source and at least one detector array, acquiring a plurality of dark images to generate a baseline image, acquiring a plurality of lag images subsequent to the baseline image, determining a plurality of parameters of a power law using at least one lag image and at least one baseline image, and performing a log—log extrapolation of the power law including the determined parameters.

    Abstract translation: 在本发明的一个方面，提供了一种用于处理透视图像的方法。 该方法包括用包括至少一个辐射源和至少一个检测器阵列的成像系统扫描对象，获取多个暗图像以生成基线图像，获取基线图像之后的多个滞后图像，确定多个 使用至少一个滞后图像和至少一个基线图像的功率律的参数，以及执行包括确定的参数的幂定律的对数对数外推。

    Systems, methods, and apparatus of a collimator
    4.
    发明授权
    Systems, methods, and apparatus of a collimator 有权
    准直仪的系统，方法和装置

    公开(公告)号：US07085355B1

    公开(公告)日：2006-08-01

    申请号：US11125548

    申请日：2005-05-10

    Applicant: Douglas Albagli ,  Ping Xue

    Inventor： Douglas Albagli ,  Ping Xue

    IPC: G21K1/04 ,  G21K1/02

    CPC classification number: G21K1/02

    Abstract: Systems, methods and apparatus are provided through which a collimator has one or more varying physical characteristics that have the effect of varying the absorption of electromagnetic energy from a low extent of absorption at a leading edge to the same extent of absorption as the remainder of the collimator. In some embodiments, the collimator has a tapered knife-edge. The varying absorption of electromagnetic energy at different points along the collimator reduce abrupt transitions of projection of the electromagnetic energy onto an electromagnetic energy detector, thereby reducing erroneous artifacts in an image generated by the detector.

    Abstract translation: 提供了一种系统，方法和装置，通过该系统，方法和装置，准直器具有一个或多个变化的物理特性，这些特性具有改变电磁能从前缘的吸收程度低到与其余部分的吸收相同程度的吸收的作用 准直仪 在一些实施例中，准直器具有锥形刀刃。 在沿着准直器的不同点处的电磁能的变化吸收减少了电磁能投射到电磁能量检测器上的突然过渡，从而减少了由检测器产生的图像中的错误伪像。

    Gain calibration and correction technique for digital imaging systems
    6.
    发明授权
    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：US07963697B2

    公开(公告)日：2011-06-21

    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: H05G1/26

    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 and methods for performing schema matching with data dictionaries
    7.
    发明授权
    Systems and methods for performing schema matching with data dictionaries 有权
    用于与数据字典执行模式匹配的系统和方法

    公开(公告)号：US07353226B2

    公开(公告)日：2008-04-01

    申请号：US11113374

    申请日：2005-04-22

    Applicant: Gary A. Coen ,  Ping Xue

    Inventor： Gary A. Coen ,  Ping Xue

    IPC: G06F7/00

    CPC classification number: G06F17/30569 ,  Y10S707/99936

    Abstract: Systems and methods for performing schema matching of multiple data dictionaries. Lexical graphs are generated for two or more data dictionaries. The lexical graphs include terms with definitions and identified links between terms. A data processing device determines if matches occur between the generated lexical graphs and outputs the result of the determination.

    Abstract translation: 用于执行多个数据字典的模式匹配的系统和方法。 为两个或多个数据字典生成词汇图。 词汇图包括术语与术语之间的定义和识别的链接。 数据处理装置确定在生成的词汇图之间是否发生匹配，并输出确定结果。

    Systems, methods and apparatus to offset correction of X-ray images
    8.
    发明授权
    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：US07218705B2

    公开(公告)日：2007-05-15

    申请号：US11165775

    申请日：2005-06-25

    Applicant: Ping Xue ,  Donald F Langler

    Inventor： Ping Xue ,  Donald F 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。

    Image cropping of imaging data and method
    9.
    发明授权
    Image cropping of imaging data and method 失效
    成像数据和方法的图像裁剪

    公开(公告)号：US07013037B2

    公开(公告)日：2006-03-14

    申请号：US10323967

    申请日：2002-12-18

    Applicant: Vincent S. Polkus ,  Thomas M. Leeds ,  Mohamed Ali Hamadeh ,  Ping Xue

    Inventor： Vincent S. Polkus ,  Thomas M. Leeds ,  Mohamed Ali Hamadeh ,  Ping Xue

    IPC: G06K9/00

    CPC classification number: A61B6/587 ,  A61B6/08

    Abstract: 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.

    Abstract translation: 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。

    Correction of defective pixels in a detector using temporal gradients
    10.
    发明授权
    Correction of defective pixels in a detector using temporal gradients 失效
    使用时间梯度校正检测器中的缺陷像素

    公开(公告)号：US06792159B1

    公开(公告)日：2004-09-14

    申请号：US09474498

    申请日：1999-12-29

    Applicant: Richard Aufrichtig ,  Kenneth Scott Kump ,  Ping Xue

    Inventor： Richard Aufrichtig ,  Kenneth Scott Kump ,  Ping Xue

    IPC: G06K940

    CPC classification number: H04N5/367 ,  H04N5/32

    Abstract: A detector imaging system having an apparatus and method for correcting defective pixels in a current acquired image is disclosed herein. The system performs the correction of defective pixels using image feature information and temporal information. The system includes a correction scheme which includes determining a temporal matrix based on the current acquired image, at least one prior acquired image, and a filter weight; determining a local gradient based in part on the temporal matrix and a gradient kernel; and providing a correction value based on the local gradient to correct the defective pixel. The correction scheme is repeated a plurality of times as desired to correct all the defective pixels in the current acquired image.

    Abstract translation: 本文公开了一种具有用于校正当前获取的图像中的有缺陷像素的装置和方法的检测器成像系统。 该系统使用图像特征信息和时间信息来执行缺陷像素的校正。 该系统包括校正方案，其包括基于当前获取的图像确定时间矩阵，至少一个先前获取的图像和滤波器权重; 部分地基于时间矩阵和梯度核确定局部梯度; 以及基于所述局部梯度提供校正值以校正所述缺陷像素。 校正方案根据需要多次重复以校正当前获取的图像中的所有缺陷像素。

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