矩卷积反投影法实现CT图象重建，从投影重建三维物体的图像，就是重建一个个横断面。这样三堆图像的重建就归结为二维图象的重建-Moment convolution back projection method of CT image reconstruction, reconstruction of three-dimensional objects from projection images, is a reconstruction of a cross-section. This three groups of image reconstruction comes down to two-dimensional image reconstruction