【摘要】 针对三维CT图像重建时间过长这一瓶颈问题,给出了FDK算法的几何描述,并据此导出了利用可编程图形硬件加速三维图像重建的方法,最后利用图形处理器的可编程、高精度以及并行计算等特性实现了该方法。实验结果表明,该三维图像重建方法非常有效,与原始算法相比取得了8倍左右的重建加速比。更多还原

【Abstract】 Aiming at promoting the 3D image reconstruction of 3D Computed Tomography(CT),first gave the geometric description of the FDK method,and then educed the 3D fast image reconstruction algorithm using the programmable graphics hardware. At last made full use of the characters of GPU to implement the method.The result shows that the reconstruction speed is promoted effectively,and can get a reconstruction speedup of 8 times compared to the original algorithm.更多还原