Because of the introduction of the Ordered Subsets,our proposed method enhances the speed effectively,and keeps the high quality image and perfect spatial resolution in the low-dose CT reconstructi...

• 同时有序子集的引入,使得新算法较经典的惩罚加权最小二乘算法在速度上得到很大提高,低剂量CT的重建图像仍可保持较佳的图像质量和较高的空间分辨率。