The goal of this project is to develop advanced techniques for quantitative microwave tomography. We aim at improving the quality of 3D microwave imaging by combining our complementary expertise: competencies in electromagnetic forward modeling and inverse microwave techniques (INTEC), expertise in numerical aspects of non-linear inverse problems (ETRO/IRIS) and expertise in statistical modeling and processing of digital images (TELIN/IPI). The developed techniques will be tested in medical imaging for breast cancer detection