A qualitative two-step inversion approach for the reconstruction of subsurface defects

Author

Donelli, Massimo ; Benedetti, Manuel ; Lesselier, Dominique ; Massa, Andrea

Author_Institution

Dept. of Inf. Eng. & Comput. Sci., Univ. of Trento, Trento, Italy

Volume

4

fYear

2009

fDate

12-17 July 2009

Abstract

In this work, the problem of the localization and shaping of buried objects or voids is addressed considering an innovative two steps strategy in order to enhance the reconstruction accuracy. In particular, at the first step the approach is aimed at firstly estimating the region-of-interest where the defect is supposed to be located. Then at the second step, the qualitative imaging of the object is improved through a level-set based shaping procedure. In order to assess the effectiveness of the proposed approach, selected numerical results concerned with different scenarios and noisy data are presented and discussed.

Keywords

geophysical image processing; image reconstruction; microwave imaging; nondestructive testing; level-set based shaping procedure; microwave imaging; noisy data; nondestructive evaluation; nondestructive testing; qualitative imaging; qualitative two-step inversion approach; reconstruction accuracy; region-of-interest; stochastic algorithms; subsurface defect reconstruction; Buried object detection; Computer science; Electromagnetic fields; Electromagnetic scattering; Electronic mail; Image reconstruction; Inverse problems; Landmine detection; Microwave imaging; Shape; Level-Set; Microwave Imaging; NDE/NDT; Stochastic Algorithms;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium,2009 IEEE International,IGARSS 2009

Conference_Location

Cape Town

Print_ISBN

978-1-4244-3394-0

Electronic_ISBN

978-1-4244-3395-7

Type

conf

DOI

10.1109/IGARSS.2009.5417331

Filename

5417331