一种改进CT检测技术在弹箭检测中的应用

The Application of an Improved CT Measure Technology in Projectiles and Rockets Examination

在用实际的CT系统对弹箭做检测的过程中,探测器是有大小的,如果在重建算法设计中考虑到这一点,对于被检测物体来说,将会得到更多更精确的信息量。文中针对实际探测器的结构特点,提出一种新的改进FBP重建算法,将算法与实际结合,并通过实际的工业CT系统对某一仿炮弹工件进行实验。实验结果表明,改进方法重建出的图像边缘和细节都要比未改进的方法好,而且还有抑制噪声的作用,对工业CT检测技术的实际应用有一定的意义。

In the process of practical CT examination, the detector has its size. We will get more accurate information for reconstruction if we take it into our account when we design our reconstruction arithmetic. Base on the detector＇s structure, this paper give a new improved FBP arithmetic, and we take it into practical experiment using a simulative projectiles. The outcomes indicate that the improved FBP arithmetic will give a better result in the reconstructed image＇s edge and detail information. Also has the effect of restrain the yawp, it will have some significance in the practical ICT system.