在闪光无法与旋转物体角移严格同步时，为进行CT图像重建，需对这些随机投影的投影角进行识别和确定其在正弦图上的位置。
In case of no way to make synchronizing between the flash and the rotating, one has to identify the Angle of all the random projections on the Sinogram before doing ct image reconstruction.
该方法利用相关系数来检测高低能正弦图投影角度方向的相对位移。
According to the proposed algorithm, the relative displacement on the projection angle of high and low sinograms is detected using correlation coefficient.
在第四章，根据标量衍射理论，首先讨论了两平面波干涉场的空间分布与平行投影正弦光栅的等价性。
In chapter 4, According to the theory of scalar diffraction, firstly, the equipollence of spatial distribution of the plane-wave interferential field and parallel projective sine grating is discussed.
在第四章，根据标量衍射理论，首先讨论了两平面波干涉场的空间分布与平行投影正弦光栅的等价性。
In chapter 4, According to the theory of scalar diffraction, firstly, the equipollence of spatial distribution of the plane-wave interferential field and parallel projective sine grating is discussed.
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