摘要
快速而又具有一定精度的图像重建算法是电容层析成像 (ECT)技术的关键。本文提出一种用多元线性回归法建立ECT系统正向模型 ,用正则化法获得图像重建这一不适定逆问题稳定解的图像重建新算法。仿真结果表明该方法能快速而较高精度地重建出两相流断层图像。
Fast reconstruction algorithm with an acceptable accuracy is key to electrical capacitance tomography (ECT). A new reconstruction method is proposed in this paper. The main idea of this method is to model ECT forward problem by using multiple linear regression and obtain a stable solution of the image reconstruction problem (an ill posed inverse problem) by using regularization. Simulation results illustrate that this method is capable of reconstructing the two phase flow cross section fast and rather accurately.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2000年第4期353-356,共4页
Chinese Journal of Scientific Instrument
基金
国家自然科学基金
辽宁省教委基金
关键词
多元线性回归
正则化
图像重建
电容层析成像
Multiple linear regression Regularization Image reconstruction Electrical capacitance tomography