@techreport{elediasc12916, year = {2025}, publisher = {ELEDIA Research Center - University of Trento}, type = {Technical Report}, author = {Marco SALUCCI and Lorenzo POLI and Francesco ZARDI and Luca TOSI and Samantha LUSA and Andrea MASSA}, title = {Contrast Source Inversion of Non-Born Scatterers with Multi-Resolution Bayesian Learning}, keywords = {microwave imaging (MI), contrast source inversion (CSI), Bayesian compressive sensing (BCS), inverse scattering (IS)}, abstract = {This report introduces an advanced multi-step inverse scattering method within the contrast source inversion (CSI) framework to reconstruct non-Born scatterers. The approach employs a multi-resolution (MR) representation to flexibly model the unknown contrast sources, which are iteratively estimated using a Bayesian compressive sensing (BCS) technique. The proposed MR-BCS-CSI method is rigorously evaluated through different case studies, demonstrating high accuracy, stability, and robustness. A comparative analyses is performed to further highlight its effectivenes.}, url = {http://www.eledia.org/students-reports/916/} }