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    X-RAY IMAGING DEVICE
    52.
    发明申请
    X-RAY IMAGING DEVICE 有权
    X射线成像装置

    公开(公告)号：US20100046709A1

    公开(公告)日：2010-02-25

    申请号：US11720942

    申请日：2006-01-05

    申请人： Hironori Ueki

    发明人： Hironori Ueki

    IPC分类号： H05G1/64

    CPC分类号： A61B6/032 ,  A61B6/06 ,  A61B6/585 ,  G01T1/2985

    摘要： An X-ray detection technology capable of suppressing a decrease in a signal-to-noise ratio derived from external noise even in a case where it is hard to intercept electromagnetic-wave noise, and offering a wide dynamic range is realized, and an X-ray imaging device utilizing the technology is provided. An electromagnetic-wave noise signal to be mixed in a signal detected by an X-ray detector 2 is inferred from electromagnetic-wave noise signals measured by reference detectors 10A and 10B according to the method of least squares. Noise removal calculation is performed in order to minimize the decrease in a signal-to-noise ratio derived from the electromagnetic-wave noise.

    摘要翻译： 即使在难以截取电磁波噪声的情况下也能够抑制由外部噪声导致的信噪比的降低的X射线检测技术，能够实现宽的动态范围，X 提供了利用该技术的射线成像装置。 根据由最小二乘法求出的由参考检测器10A和10B测量的电磁波噪声信号，推断由X射线检测器2检测的信号中混合的电磁波噪声信号。 执行噪声去除计算以便最小化从电磁波噪声导出的信噪比的降低。

    X-ray CT apparatus
    55.
    发明授权
    X-ray CT apparatus 失效
    X射线CT装置

    公开(公告)号：US06580777B1

    公开(公告)日：2003-06-17

    申请号：US09869851

    申请日：2001-07-05

    申请人： Hironori Ueki ,  Kenichi Okajima

    发明人： Hironori Ueki ,  Kenichi Okajima

    IPC分类号： A61B602

    CPC分类号： A61B6/4447 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4291

    摘要： An x-ray CT apparatus of the invention includes: a scanner (4) having an x-ray source (1) for generating radial x-rays emitted to an object (8) and a detector (3) provided to face the x-ray source and acquiring a projection of the object; a rotation controler (102) for rotating the scanner around the object; a gantry-tilt angle controler (104) for changing a tilt angle formed between a surface of rotation of the scanner and a body axis of the object; processing unit (106) for generating a CT image of the object from the projections acquired from a plurality of directions while rotating the scanner and changing the tilt angle; and display unit (107) for displaying a three-dimensional CT image of high picture quality.

    摘要翻译： 本发明的X射线CT装置包括：扫描器（4），其具有用于产生发射到物体（8）的径向X射线的X射线源（1）和设置成面对x射线的检测器（3） 并获取对象的投影; 旋转控制器（102），用于围绕物体旋转扫描仪; 用于改变在所述扫描器的旋转表面与所述物体的体轴之间形成的倾斜角的台架倾斜角度控制器（104） 处理单元（106），用于在旋转扫描仪并改变倾斜角度的同时从多个方向获取的投影产生物体的CT图像; 以及用于显示高图像质量的三维CT图像的显示单元（107）。

    Method for generating X-ray image and apparatus therefor
    56.
    发明授权
    Method for generating X-ray image and apparatus therefor 失效
    用于产生X射线图像的方法及其装置

    公开(公告)号：US5960058A

    公开(公告)日：1999-09-28

    申请号：US759088

    申请日：1996-11-29

    申请人： Rika Baba ,  Ken Ueda ,  Hironori Ueki ,  Keiji Umetani

    发明人： Rika Baba ,  Ken Ueda ,  Hironori Ueki ,  Keiji Umetani

    IPC分类号： A61B6/00 ,  A61B6/03 ,  G06T1/00 ,  G06T5/50 ,  H05G1/64

    CPC分类号： G06T5/50 ,  A61B6/583 ,  Y10S378/901

    摘要： The method for generating an X-ray image of the present invention by correcting a measured fluorographic image or radiographic image and removing the veiling glare component and scattered X-ray component has (1) a step of generating a veiling glare component image and a scattered X-ray component image corresponding to the fluorographic image or radiographic image from the measured fluorographic image or radiographic image independently and (2) a step of obtaining the difference between the measured fluorographic image or radiographic image and the veiling glare component image and scattered X-ray component image and executes a correction of removing the veiling glare component and scattered X-ray component from the measured fluorographic image or radiographic image.

    摘要翻译： 通过校正测量的荧光图像或放射线照相图像并除去遮蔽的眩光成分和散射的X射线成分来生成本发明的X射线图像的方法具有以下步骤：（1）产生遮光眩光成分图像和散射 X射线分量图像对应于来自测量的荧光图像或放射照相图像的荧光图像或放射照相图像，以及（2）获得所测量的荧光图像或放射线照相图像与遮罩眩光分量图像之间的差异的步骤， 并且从测量的荧光图像或放射照相图像执行去除遮光眩光成分和散射X射线成分的校正。

    Method for generating X-ray image and apparatus therefor
    57.
    发明授权
    Method for generating X-ray image and apparatus therefor 失效
    用于产生X射线图像的方法及其装置

    公开(公告)号：US5878108A

    公开(公告)日：1999-03-02

    申请号：US80223

    申请日：1998-05-18

    申请人： Rika Baba ,  Ken Ueda ,  Ken Ishikawa ,  Hironori Ueki ,  Keiji Umetake

    发明人： Rika Baba ,  Ken Ueda ,  Ken Ishikawa ,  Hironori Ueki ,  Keiji Umetake

    IPC分类号： H05G1/64 ,  A61B6/03

    CPC分类号： A61B6/5282 ,  H05G1/64 ,  A61B6/4291 ,  A61B6/583 ,  Y10S378/901

    摘要： A radiographic apparatus which can improve at high speed the picture quality of an X-ray fluoroscopic image or an X-ray radiographic image is disclosed. In a radiographic apparatus acquiring an X-ray fluoroscopic image or an X-ray radiographic image and having a scattered X-ray corrector for eliminating a scattered X-ray component from the acquired X-ray fluoroscopic image or X-ray radiographic image, the scattered X-ray corrector comprises: scattered X-ray intensity distribution function generator for generating a scattered X-ray intensity distribution function on the basis of the acquired X-ray fluoroscopic image or X-ray radiographic image; a moving average calculator for executing moving average calculation a plurality of times in each of the vertical and lateral directions of the acquired X-ray fluoroscopic image or X-ray radiographic image; a window width calculator for calculating a window width of the moving average calculation on the basis of the scattered X-ray intensity distribution function; and a difference calculator means for calculating the difference between the acquired X-ray fluoroscopic image or X-ray radiographic image and an image to which the moving average calculation is performed.

    摘要翻译： 公开了能够高速提高X射线透视图像或X射线照相图像的图像质量的放射线照相设备。 在从所获取的X射线透视图像或X射线照相图像获取X射线透视图像或X射线照相图像并具有用于消除散射X射线成分的散射X射线校正器的放射线照相设备中， 散射X射线校正器包括：散射X射线强度分布函数发生器，用于基于获取的X射线透视图像或X射线照相图像产生散射X射线强度分布函数; 移动平均计算器，用于在所获取的X射线透视图像或X射线照相图像的每个垂直和横向方向上执行移动平均计算多次; 窗口宽度计算器，用于基于散射的X射线强度分布函数计算移动平均计算的窗口宽度; 以及差分计算装置，用于计算所获取的X射线透视图像或X射线照相图像与执行移动平均计算的图像之间的差异。