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.
出处
《核技术》
EI
CAS
CSCD
北大核心
2006年第3期234-237,共4页
Nuclear Techniques
关键词
螺旋CT
中间函数
锥束扫描
重建算法
Helical CT, Intermediate function, Cone-beam scan, Reconstruction algorithm
