| 锥束CT图像重建算法的快速实现 |
| |
| 引用本文： | 吴胜利,潘瑞谊,文斌.锥束CT图像重建算法的快速实现[J].CT理论与应用研究,2007,16(4):31-37. |
| |
| 作者姓名： | 吴胜利 潘瑞谊 文斌 |
| |
| 作者单位： | 西安交通大学,电子物理与器件教育部重点实验室,西安710049 |
| |
| 基金项目： | 陕西省科技攻关计划，西安交通大学校科研和教改项目 |
| |
| 摘 要： | 本文基于锥束CT滤波反投影重建的FDK算法,通过两种算法改进并结合基于共享内存的OpenMP并行技术和代码优化,实现了锥束CT图像的快速重建.基于锥束CT实际投影数据的重建结果表明,图像重建速度得到了较大的提高,断层图像重建质量与FDK原型算法相当.
|
| 关 键 词： | 锥束CT 图像重建 FDK滤波反投影法 OpenMP并行技术 |
| 文章编号： | 1004-4140(2007)04-0031-07 |
| 修稿时间： | 2007年9月13日 |
Fast Accomplishment of Reconstruction Algorithm for Cone Beam CT |
| |
| WU Sheng-li,PAN Rui-yi,WEN Bin.Fast Accomplishment of Reconstruction Algorithm for Cone Beam CT[J].Computerized Tomography Theory and Applications,2007,16(4):31-37. |
| |
| Authors: | WU Sheng-li PAN Rui-yi WEN Bin |
| |
| Abstract: | Based on the analysis of traditional FDK filtered-backprojection algorithm for Cone-beam CT reconstruction,two kinds of improvements are presented to accelerate the reconstruction.Together with algorithm improvements,the parallel programming technology Open MP and the SSE,MMX instructions are adopted to optimize the code.The reconstruction from actual cone-beam CT projections shows that these improvements can make the reconstruction much fast while keeping the image quality as good as the traditional FDK algorithm. |
| |
| Keywords: | Cone-beam CT image reconstruction FDK filtered-back projection algorithm Open MP parallel programming |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
