Title :
Regularization Parameter Optimum Based on Quasi-Optimum Criterion for Image Reconstruction of Electrical Capacitance Tomography
Author :
Li, Cuihuan ; Wang, Youhua ; Geng, Duyan ; Yang, Xiaoguang ; Shen, Xueqin
Author_Institution :
Province-Minist. Joint Key Lab. of Electromagn. Field & Electr. Apparatus Reliability, Hebei Univ. of Technol., Tianjin, China
Abstract :
Electrical Capacitance Tomography (ECT) image reconstruction is an ill-posed problem, and Tikhonov regularization is widely employed to get the stable solution. Correctly selecting regularization parameter is crucial for image reconstruction, which affects both quality and speed of image reconstruction. In this paper, a method of selecting optimum parameter based on quasi-optimum criterion is proposed. Simulation results show that the reconstruction image quality is improved markedly by using the proposed method.
Keywords :
capacitance measurement; computerised instrumentation; image reconstruction; image sensors; ECT image reconstruction; Tikhonov regularization; capacitive sensing mechanism; electrical capacitance tomography image reconstruction; quasioptimum criterion; Capacitance; Capacitance measurement; Electrical capacitance tomography; Electrodes; Equations; Image reconstruction; Signal processing algorithms;
Conference_Titel :
Electromagnetic Field Problems and Applications (ICEF), 2012 Sixth International Conference on
Conference_Location :
Dalian, Liaoning
Print_ISBN :
978-1-4673-1333-9
DOI :
10.1109/ICEF.2012.6310395
