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| Image Reconstruction Algorithms of ECT System Based on the Modified Linearized Bregman Algorithm |
| MA Min,SUN Mei-juan |
| College of Electronic Information and Automation, Civil Aviation University of China, Tianjin 300300, China |
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Abstract For the underdetermination of the inverse problem of electrical capacitance tomography (ECT), the improved linear Bregman algorithms based on singular value decomposition (SVD) and second-order iteration were applied to the ECT image reconstruction process. The simulation experiments showed that compared with SVD, Landweber, CG and linear Bregman algorithm, they had the higher image resolution and faster imaging speed. Among the two improved algorithms, the algorithm based on singular value decomposition had fewer image reconstruction artifacts, and the algorithm based on second-order iterations significantly increased the speed.
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Received: 29 August 2019
Published: 15 July 2021
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2021, Vol. 42 
