CHEN Yu, SUN Fan, ZHANG Jian. A Novel Three Conjugate Gradient Image Reconstruction Algorithm for Electrical Capacitance Tomography System[J]. 2009, 14(6): 42-46.DOI:
三项共轭梯度的电容层析成像图像重建算法
摘要
针对电容层析成像技术中的"软场"效应和病态问题
提出了一种三项共轭梯度的新电容层析成像算法.在分析电容层析成像基本原理的基础上
给出了三项共轭梯度法的迭代公式和计算步骤
并探讨了ECT应用该算法的可行性
算法满足收敛条件且重建图像误差小.仿真和实验结果表明
同LBP和普通共轭梯度算法相比
该算法兼备成像质量高、边界均匀稳定等优点.
Abstract
To solve the’soft-field’nature and the ill-posed problem in electrical capacitance tomography(ECT)technology
a novel three Conjugate Gradient algorithm for electrical capacitance tomography is presented.The analysis of the basic principles of electrical capacitance tomography is made
based on the given three conjugate gradient method and calculation formula of the iteration steps of the ECT and to explore the feasibility of application of the algorithm
the algorithm to meet the convergence conditions and th...