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本文提出了电阻抗成象的图象重建算法中一种新的电导率分布函数逼近方法—连续插值函数逼近法.它充分利用有限元方法计算上的特点,在计算量不增加甚至有所减少的情况下,获得了比传统的分片常数逼近法更好的图象重建效果.
In this paper, a new approximation method of electrical conductivity distribution function - continuous interpolation function approximation method is proposed in the image reconstruction algorithm of electrical impedance tomography. It makes full use of the computational characteristics of the finite element method, and does not increase or even reduce the amount of computation , A better image reconstruction effect than the traditional piecewise constant approximation method is obtained.