%0 Journal Article
%A Carpio Rodríguez, Ana María
%A Rapún Banzo, María Luisa
%T Hybrid topological derivative and gradient-based methods for electrical impedance tomography
%D 2012
%@ 0266-5611
%U https://hdl.handle.net/20.500.14352/42397
%X We present a technique to reconstruct the electromagnetic properties of a medium or a set of objects buried inside it from boundary measurements when applying electric currents through a set of electrodes. The electromagnetic parameters may be recovered by means of a gradient method without a priori information on the background. The shape, location and size of objects, when present, are determined by a topological derivative-based iterative procedure. The combination of both strategies allows improved reconstructions of the objects and their properties, assuming a known background.
%~