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arXiv math-ph/0403015math-phmath.MP
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电导率反问题的积分方程方法

An integral equation method for the inverse conductivity problem

S. Ciulli, M. K. Pidcock, C. Sebu

摘要:

我们提出了一个图像重建算法的电导率反问题的基础上重新制定的积分方程。我们使用注入的电流和相应的感应边界电位的值作为数据,以及电导率的边界值。我们已经使用了先验信息,找到一个正则化的电导率分布,首先解决了第二类Fredholm积分方程的拉普拉斯的潜力,然后通过解决一阶偏微分方程的正则化的电导率本身。该方法中涉及的许多计算可以通过使用本文中定义的积分算子的本征函数来解析地实现。

英文摘要:

We present an image reconstruction algorithm for the Inverse Conductivity Problem based on reformulating the problem in terms of integral equations. We use as data the values of injected electric currents and of the corresponding induced boundary potentials, as well as the boundary values of the electrical conductivity. We have used a priori information to find a regularized conductivity distribution by first solving a Fredholm integral equation of the second kind for the Laplacian of the potential, and then by solving a first order partial differential equation for the regularized conductivity itself. Many of the calculations involved in the method can be achieved analytically using the eigenfunctions of an integral operator defined in the paper.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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