关于扇形束超短扫描几何下图像重建算法的改进研究(英文)  

On the Improved Super-short-scan Reconstruction Algorithms of Fan-beam Computed Tomography

作　　者：叶丽颖 王金平[1] 

机构地区：[1]宁波大学理学院数学系,浙江宁波315211 [2]公安海警学院,浙江宁波315801

出　　处：《应用数学》2015年第2期395-403,共9页Mathematica Applicata

基　　金：Supported by the NNSF of China(61271398)

摘　　要：本文研究感觉兴趣区域扇形束投影下的图像重建问题,改进扇形束过滤背投影算法从而获得较好的重建结果,并推广到截断扇形束投影数据的情形.In this article,image reconstruction from fan-beam projections is studied when only a re- gion of interest（ROI） is to be reconstructed. _And the improved fan-beam FBP algorithms are pro- posed. Furthermore,the algorithms are extended to image reconstruction from truncated fan-beam projections.

关 键 词：超短扫描 重建算法 扇形束 过滤背投影算法 

分 类 号：O177.6[理学—数学] O175.5[理学—基础数学]