DocumentCode :
3273543
Title :
New insights in Huber and TV-like regularizers in microwave imaging
Author :
Funing Bai ; Pizurica, Aleksandra ; Franchois, Ann ; Philips, Wilfried
Author_Institution :
Dept. of Telecommun. & Inf. Process. (IPI-TELIN-iMinds), Ghent Univ., Ghent, Belgium
fYear :
2013
fDate :
15-18 Sept. 2013
Firstpage :
1026
Lastpage :
1030
Abstract :
In this paper we give new insights into quantitative microwave tomography with robust Huber regularizer and Gauss-Newton optimization. Firstly, we validate this approach for the first time on real electromagnetic measurements. Secondly, we extend the framework with a modified Huber function, which behaves like TV regularization. This is interesting for reconstructing piece-wise constant permittivities that appear in non-destructive testing of installations and other man-made objects.
Keywords :
Newton method; electromagnetic wave scattering; microwave imaging; optimisation; tomography; Gauss-Newton optimization; TV-like regularizers; microwave imaging; modified Huber function; nondestructive testing; piecewise constant permittivity reconstruction; quantitative microwave tomography; real electromagnetic measurements; robust Huber regularizer; Image reconstruction; Inverse problems; Microwave imaging; Microwave measurement; Permittivity; TV; Huber function; inverse problem; inverse scattering; microwave imaging; sparsity;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image Processing (ICIP), 2013 20th IEEE International Conference on
Conference_Location :
Melbourne, VIC
Type :
conf
DOI :
10.1109/ICIP.2013.6738212
Filename :
6738212
Link To Document :
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