该方法包括使用增益参数和偏移参数中的至少一个的联合估计以及重建图像的估计来执行断层摄影图像重建。
The method includes performing a tomographic image reconstruction using a joint estimation of at least one of a gain parameter and an offset parameter, and an estimation of the reconstructed image.
在MR扫描过程中患者的自主或非自主运动使获得的采集数据的相位发生偏移，因而重建图像含有运动伪影，严重地影响临床诊断。
In the process of MR scan, because patient' s motion affects the collected data, the reconstructed image would contain severe motion artifacts.
在重建过程中，根据探测器的中心偏移量，对滤波线方程、滤波前后的重排和校正以及反投影过程进行修正处理。
In the process of the reconstruction, the filtering line, re-sampling, correction and back-projection are revised respectively according to the detector center excursion.
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