A Modified Landweber Algorithm for Electrical Resistance Tomography

ZHANG Li-Feng; WANG Hua-xiang

doi:10.3969/j.issn.1000-1158.2016.03.10

PDF(751 KB)

Acta Metrologica Sinica ›› 2016, Vol. 37 ›› Issue (3) : 271-274. DOI: 10.3969/j.issn.1000-1158.2016.03.10

A Modified Landweber Algorithm for Electrical Resistance Tomography

ZHANG Li-feng¹,WANG Hua-xiang²

Author information +

History +

Abstract

Landweber iterative algorithm with updated sensitivity matrix is studied to improve the quality of reconstructed images. The initial image for sensitivity matrix update was obtained by Landweber iterative algorithm, and the results of different sensitivity matrix update intervals are compared. The times of sensitivity matrix updating are also analyzed. Experimental and simulation results showed that reconstructed images with higher accuracy can be obtained.

Key words

metrology / electrical resistance tomography / image reconstruction algorithm / landweber iteration / multiphase flow measurement

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

ZHANG Li-Feng, WANG Hua-xiang. A Modified Landweber Algorithm for Electrical Resistance Tomography[J]. Acta Metrologica Sinica. 2016, 37(3): 271-274 https://doi.org/10.3969/j.issn.1000-1158.2016.03.10

References

［1］白博峰,郭烈锦,陈学俊．气液两相流流型在线智能识别［J］.中国电机工程学报,2001,21(7):46-50.
［2］Dyakowski T. Process tomography applied to multi-phase flow measurement［J］. Measurement Science & Technology, 1996, 7(3):343-353.
［3］董峰,许燕斌．电阻层析成像技术在两相流测量中的应用［J］.工程热物理学报,2006,27(5):791-794.
［4］Ismail I, Gamio J C, Bukhari S F A, et al. Tomography for multi-phase flow measurement in the oil industry［J］. Flow Measurement and Instrumentation, 2005, 16(2-3):145-155.
［5］马艺馨,徐苓安,姜常珍,等．电阻层析成像技术的研究［J］.仪器仪表学报,2001,22(2):195-198.
［6］张建国,马福昌,窦银科．层析成像在冰水两相流参数测量中的应用［J］.光学精密工程,2013,21(8):1981-1987.
［7］余金华．ERT技术图像重建算法研究［J］.计量学报,2011,32(5):436-440.
［8］Wang H X, Tang L, Cao Z. An image reconstruction algorithm based on total variation with adaptive mesh refinement for ECT［J］. Flow Measurement & Instrumentation, 2007, 18 (5-6):262-267.
［9］Hu L, Wang H X, Zhao B, et al. A hybrid reconstruction algorithm for electrical impedance tomography［J］. Measurement Science & Technology, 2007, 18 (3):813-818.
［10］Wang H X, Wang C, Yin W. A pre-iteration method for the inverse problem in electrical impedance tomography［J］. IEEE Transactions on Instrument and Measurement, 2004, 53(4):1093-1096.
［11］Li Y, Yang W Q. Image reconstruction by nonlinear Landweber iteration for complicated distributions［J］. Measurement Science & Technology, 2008, 19(9):094014.
［12］Yang W Q, Peng L H. Image reconstruction algorithms for electrical capacitance tomography［J］. Measurement Science & Technology, 2003, 14(1):R1-R13.
［13］崔自强,王化祥,许燕斌,等．双截面电阻层析成像系统设计［J］.天津大学学报,2010,43(2):115-120.