CSI-CFI Formulations of the Multiresolution Inexact Newton Method – A Numerical Comparison

A numerical comparison of two innovative microwave imaging strategies is presented. To effectively tackle the non-linearity and ill-posedness arising in the inversion process, the techniques integrate a multi-resolution approach with two different `Inexact-Newton' methods developed either within the contrast source or within the contrast field formulations of the inverse scattering problem. A set of preliminary numerical results is presented to compare the features and potentialities of the methods.