Joint Inversion of Electromagnetic and Acoustic Data With Edge-Preserving Regularization for Breast Imaging

Joint inversion of microwave and ultrasonic data for breast imaging is investigated with deterministic edge-preserving regularization by introducing auxiliary variables indicating whether a pixel on an edge or not. These markers are shared dielectric acoustic parameters the link to fusion between modalities. They can be jointly optimized from last parameter profiles cases guide next optimization as coefficients term. Alternate minimization used update contrast, contrast. Comprehensive numerical experiments carried out phantoms, simple synthetic one three extracted database. The results show, comparisons more classical approaches involving total variation cross-gradient developed in parallel, that joint algorithm gain high resolution contrast imaging. quality enhanced clear fashion small tumors detected.