中文说明：反滤波投影法仿真代码，实现反滤波投影在matlab平台上的仿真。CT图像重建，滤波反投影重建算法（Filter BackProjection，FBP）代码详解。描述清晰，利于理解有助于初学者学习。
English Description：
Anti-filtering projection simulation code, implement inverse filtering projection simulation in the MATLAB platform. CT image reconstruction, filtered back-projection algorithm (Filter BackProjection,FBP) code walkthrough. Clear, to understand will help beginners to learn.