The Correction SART Algorithm Based on Circular Symmetrical Object

Computed tomography (CT) is widely used in medical diagnosis, spaceflight and industry. But in the application, sometimes CT can only attain incomplete projections. Therefore, the iterative algorithm has to be applied so as to get a better reconstructed image. For the circular symmetrical objects, in three dimensional cone beam CT situation, a new method called correction SART (C-SART) algorithm is researched to reconstruct image from one direction projection. Computer simulation experiment results show that, for the circular symmetrical objects, a high quality image can be reconstructed from one direction projection with this means.