中间函数法CT图像重建算法研究  

Algorithm of CT image reconstruction using intermediate function

作　　者：霍修坤[1] 程志友[1] 

机构地区：[1]安徽大学电子科学与技术学院,合肥230039

出　　处：《核技术》2006年第3期234-237,共4页Nuclear Techniques

摘　　要：CT自从被发明以来其技术已发生了很大的变化。这些变化不仅体现在计算机技术、探测器技术和X线技术方面,同时CT的图像重建算法也在不断地发展。本文提出的中间函数重建算法,是一种可以应用于扇束和锥束扫描的图像重建算法。研究它的目的是为将来的锥束扫描提供直接重建算法。Many changes have taken place in CT technology since it was invented. These changes not only appear in computer, detector and X ray technology but also in image reconstruction algorithm. A new kind of CT image reconstruction algorithm named Intermediate Function Algorithm is presented in this paper. This algorithm can be used both in fan-beam and cone-beam scan. The aim of the research is to find an effective reconstruction algorithm which can be used in cone-beam CT in the future.

关 键 词：螺旋CT 中间函数 锥束扫描 重建算法 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]