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    RADIOGRAPHIC IMAGE DETECTOR AND CONTROLLING METHOD THEREFOR
    1.
    发明申请
    RADIOGRAPHIC IMAGE DETECTOR AND CONTROLLING METHOD THEREFOR 有权
    放射影像检测器及其控制方法

    公开(公告)号：US20130136234A1

    公开(公告)日：2013-05-30

    申请号：US13683428

    申请日：2012-11-21

    申请人： FUJIFILM Corporation

    发明人： Kentaro NOMA ,  Kenji NAKAMURA ,  Naoto IWAKIRI ,  Kouichi KITANO ,  Keita WATANABE

    IPC分类号： H05G1/64

    CPC分类号： H05G1/64 ,  A61B6/548 ,  G01T1/171 ,  H04N5/32

    摘要： A flat panel detector has pixels for obtaining image signals and detective pixels for detecting the amount of incident x-rays. A signal processing circuit is of a pipeline-type, wherein first and second buffer memories are connected to the output of an A/D converter. In a dose detecting operation, the signal processing circuit repeats primary cycles alternately with secondary cycles of a shorter length than the primary cycles. In the primary cycle, a dose detection signal based on electric charges from the detective pixels is input in the first buffer memory and, simultaneously, a dummy signal is output from the second buffer memory. In secondary cycle, the dose detection signal is output from the first buffer memory and, simultaneously, a second dummy signal is input in the second buffer memory. On the basis of the dose detection signals, a start-of-radiation detector detects the start of x-ray radiation.

    摘要翻译： 平板检测器具有用于获得图像信号的像素和用于检测入射X射线量的检测像素。 信号处理电路是流水线型的，其中第一和第二缓冲存储器连接到A / D转换器的输出端。 在剂量检测操作中，信号处理电路以比主要周期短的次级循环交替重复主循环。 在主循环中，基于来自检测像素的电荷的剂量检测信号被输入到第一缓冲存储器中，同时从第二缓冲存储器输出虚拟信号。 在二次循环中，从第一缓冲存储器输出剂量检测信号，同时在第二缓冲存储器中输入第二伪信号。 基于剂量检测信号，起始辐射检测器检测X射线辐射的开始。

    Apparatus and method for image processing and storage medium
    2.
    发明授权
    Apparatus and method for image processing and storage medium 有权
    图像处理和存储介质的设备和方法

    公开(公告)号：US08213701B2

    公开(公告)日：2012-07-03

    申请号：US12403267

    申请日：2009-03-12

    申请人： Keiji Tsuchiya

    发明人： Keiji Tsuchiya

    IPC分类号： G06K9/36 ,  G06K9/40

    CPC分类号： G06K9/40 ,  A61B6/42 ,  A61B6/4208 ,  A61B6/4233 ,  A61B6/52 ,  A61B6/5205 ,  A61B6/5258 ,  G06K9/36 ,  G06T5/002 ,  G06T2207/10116 ,  G06T2207/20024 ,  G06T2207/20182 ,  G06T2207/30004 ,  H05G1/64

    摘要： An image processing apparatus and method including executing high-pass filtering in a column direction on the pixel values of original image data read from a flat panel detector to obtain first image data, and subtracting a value obtained by converting each of the pixel values of the first image data in accordance with an absolute value of a statistic calculated from pixel values in the same pixel row of the first image data from the value of a corresponding pixel of the original image data to obtain processed image data.

    摘要翻译： 一种图像处理装置和方法，包括对从平板检测器读取的原始图像数据的像素值在列方向上执行高通滤波以获得第一图像数据，并且减去通过转换每个像素值 根据从原始图像数据的对应像素的值，根据第一图像数据的相同像素行中的像素值计算出的统计量的绝对值的第一图像数据，以获得处理后的图像数据。

    Method and device for displaying the deployment of an endovascular prosthesis
    3.
    发明申请
    Method and device for displaying the deployment of an endovascular prosthesis 有权

    公开(公告)号：US20030011600A1

    公开(公告)日：2003-01-16

    申请号：US10175634

    申请日：2002-06-19

    发明人： Jean Lienard ,  Francisco Sureda ,  Regis Vaillant

    IPC分类号： G06T017/00

    CPC分类号： G06T3/4084 ,  A61B6/12 ,  A61F2/82 ,  H04N13/221 ,  H04N13/254 ,  H05G1/64

    摘要： A method and device for displaying an element having a periodic structure, such as a stent, images of which are acquired by means of a radiography machine of the type comprising an X-ray source and an image detector and an image display placed opposite the said source, wherein the images obtained are displayed with an overall magnification of: 1 f S f C null null null S null null null F null E null null null S null null null D null null 180 , where fS is the fundamental frequency, being the inverse of the spatial period of the stent in pairs of lines per millimeter, where fCSF is a spatial frequency corresponding to the contrast sensitivity maximum for the human eye in cycles per degree: and where ESD is the expected distance in millimeters between the images display and an observer viewing these images.

    Digital radiography system having an X-ray image intensifier tube
    4.
    发明授权
    Digital radiography system having an X-ray image intensifier tube 失效
    具有X射线图像增强管的数字射线照相系统

    公开(公告)号：US06351518B2

    公开(公告)日：2002-02-26

    申请号：US09883192

    申请日：2001-06-19

    申请人： Hisatake Yokouchi ,  Yoichi Onodera ,  Fumitaka Takahashi ,  Mitsuru Ikeda ,  Koichi Koike

    发明人： Hisatake Yokouchi ,  Yoichi Onodera ,  Fumitaka Takahashi ,  Mitsuru Ikeda ,  Koichi Koike

    IPC分类号： H05G164

    CPC分类号： H05G1/64

    摘要： A digital radiography system having an X-ray source irradiating an object to be inspected with X-ray, an X-ray image intensifier tube which receives the X-rays which pass through the object and converts the received X-rays into an optical image, a video camera which picks up the output image and has different modes, an optical system including a plurality of lenses and disposed between the X-ray image intensifier tube and the video camera, an image processor which converts an output from the video camera into a digital image data, and an image display for displaying an X-ray image by reading out the digital image data from the image processor.

    摘要翻译： 一种具有用X射线照射待检查对象的X射线源的数字射线照相系统，接收通过物体的X射线并将接收到的X射线转换成光学图像的X射线图像增强管 拍摄输出图像并具有不同模式的摄像机，包括多个透镜并且设置在X射线图像增强管和摄像机之间的光学系统，将来自摄像机的输出转换为 数字图像数据和用于通过从图像处理器读出数字图像数据来显示X射线图像的图像显示器。

    X-ray diagnostic installation having an X-ray image converter with combined back light/dose measuring unit
    5.
    发明申请
    X-ray diagnostic installation having an X-ray image converter with combined back light/dose measuring unit 有权
    X射线诊断装置具有组合背光/剂量测量单元的X射线图像转换器

    公开(公告)号：US20010028701A1

    公开(公告)日：2001-10-11

    申请号：US09819251

    申请日：2001-03-27

    申请人： Siemens Aktiengesellschaft

    发明人： Reiner F. Schulz

    IPC分类号： H05G001/64

    CPC分类号： G01T1/2018 ,  H05G1/64

    摘要： X-ray diagnostic installation has a high-voltage generator for an X-ray tube for generating an X-ray beam, an X-ray image converter that has a scintillator layer and a semiconductor layer with light-sensitive pixel elements arranged in a matrix, and a combined back light/dose measuring unit arranged therebehind in the beam direction that is formed by an array of light-emitting diodes arranged in a matrix, as backside illumination, and light-sensitive sensors that acquire the X-ray dose, as sensors, and a measurement transducer for the control of the high-voltage generator connected thereto. Light waveguides are arranged in front of the light-sensitive sensors and between the light-emitting diodes, these light waveguides conducting the light that proceeds from the X-ray image converter during the irradiation and that is incident onto the combined back light/dose measuring unit onto the light-sensitive sensors.

    摘要翻译： X射线诊断装置具有用于产生X射线束的X射线管的高压发生器，具有闪烁体层的X射线图像转换器和具有排列成矩阵的感光像素元件的半导体层 ，以及组合的背光/剂量测量单元，其布置在由布置在矩阵中的发光二极管阵列作为背面照明形成的光束方向上，以及获取X射线剂量的光敏传感器，如 传感器和用于控制与其连接的高压发生器的测量传感器。 光波导布置在感光传感器之前和发光二极管之间，这些光波导在照射期间进行从X射线图像转换器进行的光并入射到组合的背光/剂量测量 单元到感光传感器上。

    Methods and apparatus for controlling X-ray angiographic image acquisition
    6.
    发明授权
    Methods and apparatus for controlling X-ray angiographic image acquisition 失效
    用于控制X射线血管造影图像采集的方法和装置

    公开(公告)号：US06195450B1

    公开(公告)日：2001-02-27

    申请号：US08933522

    申请日：1997-09-18

    申请人： Jianzhong Qian ,  Ping Hua ,  Zhenyu Wu

    发明人： Jianzhong Qian ,  Ping Hua ,  Zhenyu Wu

    IPC分类号： G06K900

    CPC分类号： A61B6/481 ,  A61B6/463 ,  A61B6/504 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612 ,  H05G1/60 ,  H05G1/64

    摘要： Controlling the stepping of an x-ray angiography imaging device (and/or table), and/or providing a visualization aid for stepping an x-ray angiography imaging device (and/or table), to maximize the diagnostic usefulness of images acquired by the x-ray angiography imaging device. The stepping and visualization aid use features, extracted from captured images, of the state of contrast media injected into a patient.

    摘要翻译： 控制x射线血管造影成像装置（和/或表）的步进和/或提供用于步进x射线血管造影成像装置（和/或表）的可视化辅助，以最大化由 x射线血管造影成像装置。 步进和可视化辅助使用从捕获的图像提取的特征，注入到患者中的造影剂的状态。

    X-ray diagnostic apparatus with control of x-ray emission dependent on the afterglow in the solid-state detector
    7.
    发明授权
    X-ray diagnostic apparatus with control of x-ray emission dependent on the afterglow in the solid-state detector 失效
    具有依赖于固态检测器的余辉的x射线发射控制的X射线诊断装置

    公开(公告)号：US5923722A

    公开(公告)日：1999-07-13

    申请号：US904254

    申请日：1997-07-31

    申请人： Reiner Schulz

    发明人： Reiner Schulz

    IPC分类号： A61B6/00 ,  G01N23/04 ,  G06T1/00 ,  G06T5/40 ,  H04N5/325 ,  H04N7/18 ,  H05G1/64

    CPC分类号： G01N23/04 ,  G06T5/008 ,  H04N5/325 ,  H05G1/64 ,  A61B6/583 ,  G06T2207/10116

    摘要： An X-ray diagnostic apparatus has at least one beam transmitter which emits an X-ray beam acquired by at least one solid-state detector with image points arranged in the form of a matrix, and at least one correction unit that acquires the image signals, produced by the solid-state detector, of the current bright image exposure of a subject to be examined, and acquires the any afterglow signals which may be present from at least one dark image exposure. The correction unit controls the beam transmitter dependent on the presence of afterglow signals and/or the intensity of the afterglow signals, and, if necessary, corrects the image signals of the current bright image exposure.

    摘要翻译： X射线诊断装置具有至少一个光束发射器，其发射由至少一个固态检测器获取的X射线束，其中矩阵形式的图像点被布置;以及至少一个获取图像信号的校正单元 由固体检测器产生的待检测对象的当前亮度图像曝光，并且获取可能存在于至少一个暗图像曝光中的任何余辉信号。 校正单元根据余辉信号的存在和/或余辉信号的强度来控制波束发射器，并且如果需要，校正当前亮度图像曝光的图像信号。

    X-ray examination apparatus including an image pick-up apparatus with a correction unit
    8.
    发明授权
    X-ray examination apparatus including an image pick-up apparatus with a correction unit 失效
    X射线检查装置包括具有校正单元的图像拾取装置

    公开(公告)号：US5778044A

    公开(公告)日：1998-07-07

    申请号：US773118

    申请日：1996-12-26

    申请人： Antonius J. C. Bruijns

    发明人： Antonius J. C. Bruijns

    IPC分类号： A61B6/00 ,  G06T1/00 ,  H04N5/32 ,  H04N5/365 ,  H05G1/64 ,  H04N1/00

    CPC分类号： H04N5/3656 ,  A61B6/583 ,  H04N5/3205 ,  H05G1/64

    摘要： An X-ray examination apparatus includes an X-ray image intensifier for deriving an optical image from an X-ray image. The optical image is picked up by means of an image pick-up apparatus which includes a correction unit which is arranged to form a dark image signal and to derive test image signals from the optical image. Correction values are derived on the basis of the test image signals and the dark image signal. The correction unit is arranged to form a dark image signal, to derive one or more test image signals from the optical image, and to derive the correction values from said test image signals and the dark image signal. The dark image signal is picked up in the absence of incident light on the image sensor. The test image signals have a signal level which represents brightness values of the optical image which have been amplified by individual gain values.

    摘要翻译： X射线检查装置包括用于从X射线图像导出光学图像的X射线图像增强器。 光学图像通过图像拾取装置拾取，该图像拾取装置包括校正单元，该校正单元布置成形成暗图像信号并从光学图像导出测试图像信号。 校正值是根据测试图像信号和暗图像信号得出的。 校正单元被布置成形成暗图像信号，以从光学图像导出一个或多个测试图像信号，并且从所述测试图像信号和暗图像信号导出校正值。 在没有入射光的情况下，在图像传感器上拾取暗图像信号。 测试图像信号具有表示通过各个增益值被放大的光学图像的亮度值的信号电平。