基于matlab的CT扇束投影图像重建。最终画出初始位置处各探测器的投影、RL滤波函数、中间探测器处投影随角度的变化、反投影重建图像。main.m为主函数。-Matlab-based CT fan-beam projection image reconstruction. The initial position of the end of the detector shown in projection, RL filter function, with the middle point of the projection at the detector changes, back-projection image reconstruction. main.m main function.