Image reconstruction for electrical capacitance tomography by using soft-thresholding iterative method with adaptive regulation parameter

被引：34
|
作者：
Dong, Xiangyuan [1 ,2 ]
Ye, Zhuoyi [2 ]
Soleimani, Manuchehr [2 ]
机构：
[1] Zhongyuan Univ Technol, Sch Energy & Environm Engn, Zhengzhou 450007, Peoples R China
[2] Univ Bath, Dept Elect & Elect Engn, ETL, Bath BA2 7AY, Avon, England
来源：
MEASUREMENT SCIENCE AND TECHNOLOGY | 2013年 / 24卷 / 08期
关键词：
capacitance tomography; image reconstruction; Landweber algorithm; soft-thresholding method; GAS-SOLIDS; ALGORITHM; OPTIMIZATION;
D O I：
10.1088/0957-0233/24/8/085402
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Electrical capacitance tomography (ECT) is a promising technology for visualization of permittivity distributions inside a volume. Fast and high spatial resolution algorithm is still a challenging task. In this paper, we present a novel soft-thresholding iterative method for ECT image reconstruction. An adaptive selection of regulation parameter is proposed based on the capacitance error in the Landweber algorithm. Both simulation and experimental results show that the image quality of the new method is comparable to that of the projected Landweber method, and in most test cases, the new method is faster than the projected Landweber method.
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页数：8
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