摘要
在分析传统反投影图像重建产生伪迹的原因后,并考虑工业多相流特点,提出了一种基于反投影数据“求交”运算的新型射线反投影图像重建算法,新的图像重建算法可得到理想的系统点扩展函数,可较好克服重建图像伪迹。通过对典型流型仿真,证明该方法是有效的。
After analyzing the reason of image reconstructed algorithm by using the conventional back projection （LBP） is prone to produce spurious line, and considering the characteristic of muti-phase flow tomography, a novel image reconstruction algorithm is proposed, which carries out the intersection lation using back projection data. This algorithm can obtain a perfect system point spread function, and can eliminate spurious line better. Simulating results show that the algorithm is effective for identifying multi-phase flow pattern.
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
2007年第2期184-186,共3页
Nuclear Electronics & Detection Technology
基金
国家自然科学基金资助项目(60472077
60532020)
国家自然科学基金委员会与中国民用航空总局联合资助项目(60672170)
关键词
多相流
图像重建
伪迹
射线
multi-flow
image reconstruction
spurious line
ray
