An image reconstruction algorithm based on new objective functional for electrical capacitance tomography

CORC > 工程热物理研究所 > 中国科学院工程热物理研究所 > 中国科学院工程热物理所（论文库） > 期刊论文（SCI）

	An image reconstruction algorithm based on new objective functional for electrical capacitance tomography
	Lei, Jing 1; Liu, Shi 2; Li, Zhihong 2; Schlaberg, H. Inaki 3; Sun, Meng 1
刊名	MEASUREMENT SCIENCE & TECHNOLOGY
	2008
卷号	19 期号:1
关键词	electrical capacitance tomography inverse problems image reconstruction estimation
英文摘要	Electrical capacitance tomography (ECT) is considered one of the promising process tomography technologies. Its successful application depends greatly on the precision and speed of the image reconstruction algorithm. ECT image reconstruction belongs to the category of ill-posed problems, and its solution is unstable. Methods that impose stability while retaining certain desired features of a solution should be used to deal with the ill-posed problem. In this paper, a novel algorithm for electrical capacitance tomography is presented. On the basis of analyzing the standard Tikhonov regularization method, a new objective functional was established using the l(p) norm and a robust estimation according to the ill-posed characteristics of ECT, which transformed the image reconstruction problem into an optimization problem. In addition, the Newton algorithm is used to solve the objective functional. Numerical simulations indicate that the proposed algorithm is effective for enhancing the spatial resolution of the reconstructed images. In the cases of the reconstructed objects in this paper, the quality of the reconstructed images obtained using the proposed algorithm is better than that of other image reconstruction algorithms such as linear back projection (LBP), the standard Tikhonov regularization method and the projected Landweber iteration algorithm. Furthermore, the computation of the algorithm is direct, simple, and does not involve complex techniques.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Multidisciplinary ; Instruments & Instrumentation
研究领域[WOS]	Engineering ; Instruments & Instrumentation
关键词[WOS]	FLOW MEASUREMENT ; FLUIDIZED-BEDS ; NEURAL-NETWORK ; SOLIDS
收录类别	SCI
语种	英语
WOS记录号	WOS:000253387500032
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/106356]
专题	工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI）
作者单位	1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100080, Peoples R China 2.N China Elect Power Univ, Key Lab Condit Monitoring & Control Power Plant, Minist Educ, Beijing 102206, Peoples R China 3.Univ Leeds, Inst Particle Sci & Engn, Leeds LS2 9JT, W Yorkshire, England
推荐引用方式 GB/T 7714	Lei, Jing,Liu, Shi,Li, Zhihong,et al. An image reconstruction algorithm based on new objective functional for electrical capacitance tomography[J]. MEASUREMENT SCIENCE & TECHNOLOGY,2008,19(1).
APA	Lei, Jing,Liu, Shi,Li, Zhihong,Schlaberg, H. Inaki,&Sun, Meng.(2008).An image reconstruction algorithm based on new objective functional for electrical capacitance tomography.MEASUREMENT SCIENCE & TECHNOLOGY,19(1).
MLA	Lei, Jing,et al."An image reconstruction algorithm based on new objective functional for electrical capacitance tomography".MEASUREMENT SCIENCE & TECHNOLOGY 19.1(2008).