| 一种优化的图象重建外插算法 |
| |
| 引用本文： | 张兆田,邱佩璋.一种优化的图象重建外插算法[J].CT理论与应用研究,1993(4). |
| |
| 作者姓名： | 张兆田 邱佩璋 |
| |
| 作者单位： | 北京信息工程学院，北京信息工程学院 100101，北京，100101，北京 |
| |
| 摘 要： | 处理由不完全数据重建图象的方法之一是代数重建法。但是,代数重建法的一个不足是关于重建图象的收敛速度很慢;本文利用代数重建法有限次迭代的重建图象反映原图象的分布趋势和向原图象变化的这一特点,提出一种优化的图象重建外插算法。数值模拟结果表明,新算法在重建图象的收敛速度和质量方面均有改进。
|
| 关 键 词： | 不完全数据 图象重建 代数重建法 SIRT |
An Optimal Extrapolating Algorithm for Image Reconstruction |
| |
| Zhang Zhaotian Qiu Peizhang.An Optimal Extrapolating Algorithm for Image Reconstruction[J].Computerized Tomography Theory and Applications,1993(4). |
| |
| Authors: | Zhang Zhaotian Qiu Peizhang |
| |
| Abstract: | A method to reconstruct image with incompleted data is algebraic recon-struction technique(ART)which gives the distributed trend of original image but has alow convergence speed.According the feature that a few iterative reconstructed image hasthe distributed trend of original image and has the trend to approximate the original imagein ART,the optimal extrapolating algorithm is suggested to reconstruct image with in-completed data in this paper.The computer stimulation shows that both the convergencespeed and the quality of reconstructed image has an improvement. |
| |
| Keywords: | Incompleted data Image reconstruction ART SIRT |
| 本文献已被 CNKI 等数据库收录！ |
