%0 Journal Article
%T Approach for Fast Projection Coefficient Computation in Algebraic Reconstruction Technique<br>代数重建法中的一种快速投影系数计算方法*
%A ZHANG Shun-li
%A ZHANG Ding-hua
%A ZHAO Xin-bo
%A <br>张顺利
%A 张定华
%A 赵歆波
%J 计算机应用研究
%D 2007
%I 
%X A fast approach for projection coefficient computation was presented,which could determine the grid index and calculate the length of the grid intercepted by the ray only requiring a simple incremental algorithm.Experiment result showed the approach was very effective and the reconstruction speed was improved over 6 times compared with the Siddon algorithm.
%K algebraic reconstruction technique(ART)
%K image reconstruction
%K projection coefficient
%K Siddon algorithm<br>代数重建法
%K 图像重建
%K 投影系数
%K Siddon算法
%K 代数重建法
%K 快速
%K 投影系数
%K 计算方法
%K Reconstruction
%K Technique
%K Algebraic
%K Computation
%K Coefficient
%K Projection
%K Fast
%K 速度提高
%K 算法
%K 结果
%K 实验
%K 长度
%K 网格
%K 射线
%K 运算
%K 增量
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=EF4AD2E7BFCF0B302C7AA6559144271F&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=94C357A881DFC066&sid=16D8618C6164A3ED&eid=1371F55DA51B6E64&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=0&reference_num=8