An image reconstruction algorithm based on total variation with adaptive mesh refinement for ECT

作者：Wang Huaxiang^*; Tang Lei; Cao Zhang

来源：Flow Measurement and Instrumentation, 2007, 18(5-6): 262-267.

DOI：10.1016/j.flowmeasinst.2007.07.004

• electrical capacitance tomography (ECT)
• image reconstruction algorithm
• total variation (TV)
• adaptive mesh refinement

In this paper, a robust image reconstruction algorithm for electrical capacitance tomography (ECT) is proposed. The key feature of the algorithm is the use of adaptive mesh refinement based on total variation (TV) in solving the inverse problem. It keeps the edge preserving and scale-dependent properties of total variation regularization, and enhances the distinguishability by using adaptive mesh refinement. This strategy improves the spatial resolution efficiently with less calculation and is less underdetermined than uniform refinement. Simulation and experimental results show that the algorithm performs better than both standard Tikhonov regularization and the conventional total variation method.

• 出版日期2007-12
• 单位天津大学