| Title |
A Comparison of Image Reconstruction Techniques for Electrical Resistance Tomography |
| Authors |
Chang-Jin Boo ; Ho-Chan Kim ; Yoon-Joon Lee |
| Keywords |
Electrical resistance tomography ; Inverse problem ; Nondestructive imaging ; Gauss-Newton method ; TLS method ; SIRT method |
| Abstract |
Electrical resistance tomography(ERT) maps resistivity values of the soil subsurface and characterizes buried objects. The haracterization includes location, size, and resistivity of buried objects. In this paper, Gauss-Newton, truncated least squares(TLS) and simultaneous iterative reconstruction technique(SIRT) methods are presented for the solution of the ERT image reconstruction. Computer simulations show that the spatial resolution of the reconstructed images by the TLS approach is improved as compared to those obtained by the Gauss-Newton and SIRT method. |