摘要
在对各种层析成像技术的基本原理及优缺点进行分析的基础上,本文采用了一种新型多相流检测技术——电阻抗成像技术,并且提出了一种应用于EIT图像重建的新算法,该算法通过融合遗传算法和Landweber迭代算法的优点来提高算法的收敛速度和重构图像的质量。实验结果表明EIT系统是一种行之有效的多相流检测系统,所采用的算法兼备收敛稳定性好及收敛速度快等优点。
On the basis of analyzing all kinds of tomography fundamental and its advantage and disadvantage, a new multiphase flow detection technique-an electrical impedance tomography is introduced, and a new algorithm used in EIT image reconstruction is proposed. This algorithm will improve the convergence speed and the quality of the image reconstruction by using the method of mixed genetic algorithm and landweber iteration algorithm. The experimental results show that the EIT system is an effective system for multiphase flow measurement, the algorithm has the advantage of good convergence stability and rapid convergence rate.
出处
《CT理论与应用研究（中英文）》
2009年第2期58-65,共8页
Computerized Tomography Theory and Applications
基金
山东省自然科学基金(Y2007G32)
山东省博士后创新项目专项资助项目(200702003)
关键词
层析成像
多相流
图像重建算法
tomography
multiphase flow
image reconstruction algorithm
