%L elediasc12487 %D 2011 %X Subsurface sensing is a wide branch of non-invasive diagnostic concerned with the detection of unexploded ordnance as well as oilfield discovery. In this framework, many approaches have been proposed by considering different probing techniques as for instance x rays, ultrasonics, eddy currents, and microwaves. Also published in: Progress In Electromagnetics Research Symposium Abstracts, Hangzhou, China, March 24-28, 2008 %A Manuel Benedetti %A Dominique Lesselier %A Lorenzo Poli %A Andrea Massa %T Qualitative Microwave Subsurface Imaging by Means of a Multi-Resolution Multi-Region Level Set Method %I University of Trento