Rapid simulation method of cone-beam computed tomography based on STL phantom

According to the properties of simulated cone-beam computed tomography projection, a suite of rapid algorithms was studied for STL phantom models based on octree. The speed of creating simulated projection images was more heightened by parallel computing the key parts of the projection calculation with SIMD technique. The experimental result shows that the algorithms achieve a speedup of 65-90 times than UG phantom projection without any image quality loss, which greatly enhance the computed speed of simulated cone-beam computed tomography projection and intensify the practicality of the simulation system.