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    • 9. 发明申请
    • HIGH-RESOLUTION COMPUTED TOMOGRAPHY
    • 高分辨率计算机图像
    • US20160047759A1
    • 2016-02-18
    • US14781541
    • 2014-04-02
    • ILLINOIS TOOL WORKS INC.
    • Yuxin WangJoshua A. SharpeJoseph SchlechtEric FerleyJulien Noel
    • G01N23/04
    • G01N23/046G01N2223/419G01N2223/42G01N2223/427G06T3/4069
    • An x-ray imaging system (10), such as a X-ray computerised tomographic system, may acquire a series of radiographs at different detector positions along a first translation axis or a second translation axis parallel to orientation directions of detector pixels of a radiation detector (14). In a first embodiment, the different detector positions may be separated by a distance less than a linear size of the radiation detector (14) along the first translation axis or the second translation axis, respectively. The radiographs may be assembled into a radiograph larger than each radiograph in the series of radiographs, resulting in image stitching. In a second embodiment, the different detector positions may be separated by a distance less than a pixel size of the radiation detector (14), also referred as sub-pixel shifting of the detector. The radiographs may be assembled to form a radiograph with a higher resolution than the acquired radiographs, resulting in superresolution.
    • 诸如X射线计算机断层摄影系统的X射线成像系统(10)可以沿着与辐射的检测器像素的取向方向平行的第一平移轴或第二平移轴在不同的检测器位置处获取一系列X射线照片 检测器(14)。 在第一实施例中,不同的检测器位置可以分别沿着第一平移轴或第二平移轴分开小于辐射检测器(14)的线性尺寸的距离。 射线照片可以组装成大于放射照片系列中的每张X光片的放射照片,导致图像拼接。 在第二实施例中,不同的检测器位置可以被分开小于辐射检测器(14)的像素尺寸的距离,也称为检测器的子像素移位。 射线照片可以被组装以形成具有比所获取的射线照片更高分辨率的射线照片,从而导致超分辨率。