| Title |
SPSA Approach to Image Reconstruction in Electrical Impedance Tomograhpy |
| Authors |
Ho-Chan Kim ; Chang-Jin Boo ; Yoon-Joon Lee |
| Keywords |
Electrical impedance tomography ; SPSA algorithm ; inverse problem ; finite element method |
| Abstract |
In EIT, various image reconstruction algorithms have been used in order to compute the internal resistivity distribution of the unknown object with its electric potential data at the boundary. Mathematically the EIT image reconstruction algorithm is a nonlinear ill-posed inverse problem. In this paper, a SPSA approach is proposed for the solution of the EIT image reconstruction. Results of numerical experiments of EIT solved by the SPSA approach are presented and compared to that obtained by the modified Newton-Raphson(mNR) method. |