电容层析成像图像重建算法的研究

Study of Image Reconstruction Algorithms of ECT System

在分析电容层析成像基本原理和图像重建算法的基础上,提出了采用迭代代数方法对管道截面图像进行重建.针对迭代算法收敛速度慢、耗时多的缺点,对迭代算法进行了改进,使重建图像的速度和质量都有明显的提高.

Electrical capacitance tomography is a new technique used to measure the parameters of multiphase flow. Fast reconstruction algorithm with an acceptable accuracy is key to electrical capacitance tomography. This paper introduces the general principle of electrical capacitance tomography, and come up with iterative algebraic reconstruction algorithm to reconstruct the stable cross-sectional images. Due to its slow convergent speed and the disadvantage of time taking, we improve the algorithm, in order to improve the speed quality of image reconstruction.