Energy difference image processing method
    1.
    发明授权
    Energy difference image processing method 失效
    能量差分图像处理方法

    公开(公告)号:US5396530A

    公开(公告)日:1995-03-07

    申请号:US136409

    申请日:1993-10-15

    IPC分类号: G06T11/00 H04N5/32 H05G1/64

    摘要: An energy difference picture processing method comprises the steps of using a semiconductor radiation detector; providing two discriminating levels; dividing X-rays, which have passed through objects, into two kind energy zones; counting X-ray photons to obtain an X-ray picture; assembling, with corresponding coefficients, S(H), S(L), {S(H)}.sup.x and {S(L)}.sup.y, which are exponential functions of the S(H) and S(L), respectively, where S(H) is a logarithmically converted version of a picture of counts in a higher energy band and S(L) is a logarithmically converted version of a picture of counts in a lower energy band; and performing addition, subtraction, multiplication and/or division on these terms to provide a picture in which a particular one of the materials constituting the objects is selectively extracted or removed.

    摘要翻译: 能量差分图像处理方法包括使用半导体辐射检测器的步骤; 提供两个区别层次; 将穿过物体的X射线分成两种能量区域; 计算X射线光子以获得X射线照片; 分别是S(H)和S(L)的指数函数的对应系数S(H),S(L),{S(H)} x和{S(L)} y) 其中S(H)是较高能带中的计数图像的对数转换版本,S(L)是较低能带中的计数图像的对数转换版本; 并对这些术语执行加法,减法,乘法和/或除法以提供其中选择性地提取或去除构成对象的特定材料的图片。

    Radiation detector and method of manufacturing the same
    6.
    发明授权
    Radiation detector and method of manufacturing the same 失效
    辐射探测器及其制造方法

    公开(公告)号:US4883967A

    公开(公告)日:1989-11-28

    申请号:US189816

    申请日:1988-05-03

    IPC分类号: H01L27/144

    CPC分类号: H01L27/1446

    摘要: Disclosed are a radiation detector and a method of manufacturing the same. The radiation detector includes a radiation screening member for cutting off radiation incident upon the marginal portions of the radiation incident surface of a semiconductor radiation sensor or a semiconductor radiation sensor array for outputting pulses in correspondence with radiation photons, as well as upon the boundary portions between adjacent sensors. In order to manufacture such a radiation detector, leads are provided by the wire bonding, soldering or bump contacting on the radiation screening member, and at least part of the radiation screening member is then fitted to the semiconductor radiation sensor or the semiconductor radiation sensor array so as to make it electrically connected to the electrodes of the semiconductor radiation sensor or the semiconductor radiation sensor array.

    Radiographic diagnostic apparatus
    7.
    发明授权
    Radiographic diagnostic apparatus 失效
    射线照相诊断仪

    公开(公告)号:US4928297A

    公开(公告)日:1990-05-22

    申请号:US184829

    申请日:1988-04-22

    CPC分类号: G21K1/02 A61B6/032

    摘要: A radiographic diagnostic apparatus including an X-ray tube for generating X-ray radiation, a line slit for shaping the X-ray radiation into a fan beam, a linear X-ray sensor array for detecting the X-ray radiation, and apparatus for driving the components is provided. The focal spot of the X-ray tube and the line slit are disposed on a straight line that connects between a specified fixed point and the center of the linear sensor array of a line extending therefrom. The X-ray tube, the line slit and the linear X-ray sensor array are driven together in a direction perpendicular to the direction of alignment of the linear X-ray sensor array so as to scan an object and thereby produce a radiographic image of the object.

    摘要翻译: 一种射线照相诊断装置,包括用于产生X射线辐射的X射线管,用于将X射线辐射成扇形束的线狭缝,用于检测X射线辐射的线性X射线传感器阵列,以及用于 提供驱动组件。 X射线管和线狭缝的焦点设置在连接指定的固定点和从其延伸的线的线性传感器阵列的中心的直线上。 将X射线管,线狭缝和线性X射线传感器阵列沿着与线性X射线传感器阵列的取向方向垂直的方向一起驱动,以扫描物体,从而产生X射线管 物体。

    X-ray imaging apparatus and recording medium therefor
    8.
    发明授权
    X-ray imaging apparatus and recording medium therefor 有权
    X射线成像装置及其记录介质

    公开(公告)号:US06201891B1

    公开(公告)日:2001-03-13

    申请号:US09361097

    申请日:1999-07-26

    IPC分类号: G06K900

    摘要: An X-ray imaging apparatus of the present invention is configured so that image data outputting means receives X-rays and outputs image data containing plural pixels, and, when a pixel value of a designated pixel in the image data is larger than a maximum pixel value of pixels surrounding the designated pixel by a predetermined value or more, abnormal data eliminating means judges the designated value as an abnormal data and corrects the abnormal data, thereby an optimum image quality adjustment is automatically conducted in accordance with an exposure object.

    摘要翻译: 本发明的X射线成像装置被配置为使得图像数据输出装置接收X射线并输出包含多个像素的图像数据,并且当图像数据中的指定像素的像素值大于最大像素 指定像素周围的像素的值为预定值以上,异常数据消除装置将指定值判定为异常数据,并且校正异常数据,从而根据曝光对象自动进行最佳图像质量调整。

    X-ray imaging apparatus and recording medium therefore
    10.
    发明授权
    X-ray imaging apparatus and recording medium therefore 失效
    因此X射线成像装置和记录介质

    公开(公告)号:US5974166A

    公开(公告)日:1999-10-26

    申请号:US882705

    申请日:1997-06-25

    摘要: An X-ray imaging apparatus of the present invention is configured so that image data outputting means receives X-rays and outputs image data containing plural pixels, and, when a pixel value of a designated pixel in the image data is larger than a maximum pixel value of pixels surrounding the designated pixel by a predetermined value or more, abnormal data eliminating means judges the designated value as an abnormal data and corrects the abnormal data, thereby an optimum image quality adjustment is automatically conducted in accordance with an exposure object.

    摘要翻译: 本发明的X射线成像装置被配置为使得图像数据输出装置接收X射线并输出包含多个像素的图像数据,并且当图像数据中的指定像素的像素值大于最大像素 指定像素周围的像素的值为预定值以上,异常数据消除装置将指定值判定为异常数据,并且校正异常数据,从而根据曝光对象自动进行最佳图像质量调整。