Electrical impedance tomography with basis constraints

被引：79

作者：

Vauhkonen, M ^{[1
]}

Kaipio, JP ^{[1
]}

Somersalo, E ^{[1
]}

Karjalainen, PA ^{[1
]}

机构：

[1] HELSINKI UNIV TECHNOL, DEPT MATH, FIN-02150 ESPOO, FINLAND

来源：

INVERSE PROBLEMS | 1997年 / 13卷 / 02期

关键词：

CURRENT COMPUTED-TOMOGRAPHY; ELECTRODE MODELS;

D O I：

10.1088/0266-5611/13/2/020

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

In this paper, we consider the impedance tomography problem of estimating the conductivity distribution within the body from static current/voltage measurements on the body's surface. We present a new method of implementing prior information of the conductivities in the optimization algorithm. The method is based on the approximation of the prior covariance matrix by simulated samples of feasible conductivities. The reduction of the dimensionality of the optimization problem is performed by principal component analysis (PCA).

引用

页码：523 / 530

页数：8

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