| 三维CT变螺距螺旋投影数据模拟方法 |
| |
| 引用本文： | 蔚慧甜,薛迎,杨海,赵榉云,周学威.三维CT变螺距螺旋投影数据模拟方法[J].电子测试,2011(6):19-21,53. |
| |
| 作者姓名： | 蔚慧甜 薛迎 杨海 赵榉云 周学威 |
| |
| 作者单位： | 中北大学信息探测与处理技术研究所太原030051 |
| |
| 摘 要： | 为了研究不同扫描方式下的三维CT重建算法,首先必须获取相应扫描方式下的投影数据,投影数据的仿真可以用来验证重建算法的准确性和可靠性.变螺距螺旋扫描可以提高扫描速度,有更高的时间、空间分辨率.本文采用三维Shepp-Logan头部模型,详细介绍了该模型在变螺距螺旋扫描方式下的投影数据的仿真计算,利用解析几何求解二次方程仿...
|
| 关 键 词： | 变螺距螺旋 投影数据 图像重建 |
Projection data simulation of variable pitch helical for 3D CT |
| |
| Yu Huitian,Xue Ying,Yang Hai,Zhao Jvyun,Zhou Xuewei.Projection data simulation of variable pitch helical for 3D CT[J].Electronic Test,2011(6):19-21,53. |
| |
| Authors: | Yu Huitian Xue Ying Yang Hai Zhao Jvyun Zhou Xuewei |
| |
| Affiliation: | Yu Huitian,Xue Ying,Yang Hai,Zhao Jvyun,Zhou Xuewei(Institute of Signal Capturing & Processing Technology,North University of China,Taiyuan 030051) |
| |
| Abstract: | In order to analysis the three-dimension reconstruction algorithm based on different scanning locus,the projection data of corresponding scanning locus must be obtained in advanced.And simulation of projection data can be used to verify the accuracy and reliability of the reconstruction algorithm.Variable pitch helical scan can improve the scanning speed,and have higher time and space resolution.In this paper,we deduced the formulation of projection data simulation under variable pitch helical scanning locu... |
| |
| Keywords: | variable pitch helical projection data image reconstruction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
