摘要
本文给出在扇束卷积反投影法中为提高运算速度，减少加权反投影运算量的一种程序优化方法和实验结果。并分别给出被测物体正反时针旋转时加权反投影的两种公式。
This paper offers a program optimization method and experimental results of increasing calculation speed and reducing weighting backprojection calculation value in sector-beam convolution backprojection, and two formulae of wighting back projection in clockwise and counter-clockwise turning of tested objects are given.
出处
《CT理论与应用研究（中英文）》
1996年第1期35-37,共3页
Computerized Tomography Theory and Applications
关键词
CT成象
扇束卷积
反投影法
程序优化
CT image, Sector-beam convolution backprojection, Program optimization.
