基于連續(xù)插值逼近的電阻抗成象的圖象ANIL建算法
IMAGE RECONSTRUCTION ALGORITHM FOR ELECTRICAL IMPEDANCE TOMOGRAPHY BASED ON APPROXIMATION BY CONTINUOUS INTERPOLATION FUNCTION
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摘要: 本文提出了電阻抗成象的圖象重建算法中一種新的電導(dǎo)率分布函數(shù)逼近方法連續(xù)插值函數(shù)逼近法.它充分利用有限元方法計算上的特點,在計算量不增加甚至有所減少的情況下,獲得了比傳統(tǒng)的分片常數(shù)逼近法更好的圖象重建效果.
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關(guān)鍵詞:
- 圖象重建; 電阻抗成象; 有限元方法; 插值逼近; 反問題
Abstract: A new approximation method to distribution function of conductivity for electrical impedance tomography image reconstruction algorithm is proposed in this paper. This method is called continuous interpolation function method. Compared with the conventional piecewise constant method, the image reconstructed by this method is much better, while the amount of computation is not increased or even decreased because the good property of finite element method has been used sufficently. -
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