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Conjugate-gradient algorithm with edge-preserving regularization for image reconstruction from Ipswich data for mystery objects

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4 Author(s)
Lobel, P. ; Lab. Inf. Signaux et Syst., Valbonne, France ; Pichot, Ch. ; Blanc-Feraud, L. ; Barlaud, M.

This paper presents some evidence of the effectiveness of adding edge preserving (EP) regularization to the conjugate radient (CG) method, in reconstructing the shape and permittivity profile of dielectric objects. Without any a priori information, our CG algorithm is also still efficient, and succeeded in reconstructing two mystery targets. As the two targets are now known, we hope we can greatly enhance the reconstruction quality by choosing better values for the calibration factors, and by applying our EP regularization to these data

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Antennas and Propagation Magazine, IEEE  (Volume:39 ,  Issue: 2 )