Trust Region Algorithm for Image Reconstruction in Electrical Capacitance Tomography System
In this paper, 12-electrode electrical capacitance tomography system for oil-water two-phase flow is studied. Based -on the principle of image reconstruction of ECT system, according to the characteristics of trust region algorithm, computing steps of ECT inverse problem are deduced. In the process of iterations, to guarantee the global convergence, the one-dimensional search factor is considered, which brings damping action. The results of simulation in trust region algorithm show that compared to LBP, Landweber and conjugate gradient method, for several typical flow regimes such as stratified flow, core flow and multi-trickle flow, there are some advantages such as high quality, softness boundary of reconstruction image, which supplies a new method for ECT image reconstruction.
electrical capacitance tomography image reconstruction trust region algorithm
Wang Lili Chen Yu Chen Deyun Yu Xiaoyang
School of Computer Science and Technology Information and Computer Engineering College Harbin Unive Northeast Forestry University Harbin, China
国际会议
哈尔滨
英文
204-209
2011-12-24（万方平台首次上网日期，不代表论文的发表时间）