CT图像重建Katsevich算法的滤波器理论研究  

Filter Theory Research Katsevich Algorithm of Volume CT Reconstruction Image

作　　者：夏俊萍[1] 苗加庆[1] 徐辉[1] 田琳[1] 

机构地区：[1]成都理工大学工程技术学院

出　　处：《中国数字医学》2010年第11期102-105,共4页China Digital Medicine

摘　　要：主要介绍了关于新型的CT重建算法——Katsevich算法所采用的滤波器,如何引入Katsevich重建公式及如何进行滤波运算,Katsevich重建公式的滤波器公式,同时介绍了应用其他不同的滤波器进行算法重建,例如将原有滤波器替换为Hanning滤波器,Hamming滤波器,并且比较应用这几种不同滤波器重建得到的重建结果.This paper introduces the new CT reconstruction algorithm on Katsevich filter algorithm used in this article describes how the introduction of Katsevich reconstruction formula, and described how the filtering operation, Katsevich reconstruction formula of the filter formula, but also introduced the application of other different filter algorithms reconstruction, such as replacing the original filter Hanning filter, Hamming filter, and compare several different application of this reconstruction by the reconstruction filter results.

关 键 词：计算机断层成像重建算法 螺旋锥束的重建 HILBERT变换 

分 类 号：R814.42[医药卫生—影像医学与核医学]