A multi-resolution technique based on shape optimization for the reconstruction of homogeneous dielectric objects

Abstract : In the framework of inverse scattering techniques, this paper presents the integration of a multi-resolution technique and the level-set method for qualitative microwave imaging. On the one hand, in order to effectively exploit the limited amount of information collectable from scattering measurements, the iterative multi-scaling approach (IMSA) is employed for enabling a detailed reconstruction only where needed without increasing the number of unknowns. On the other hand, the a priori information on the homogeneity of the unknown object is exploited by adopting a shape-based optimization and representing the support of the scatterer via a level-set function. Reliability and effectiveness of the proposed strategy are also assessed by processing both synthetic and experimental scattering data for simple and complex geometries.
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https://hal.archives-ouvertes.fr/hal-00365614
Contributor : Marc Lambert <>
Submitted on : Tuesday, March 3, 2009 - 9:10:17 PM
Last modification on : Thursday, April 5, 2018 - 12:30:04 PM

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Manuel Benedetti, Dominique Lesselier, Marc Lambert, Andrea Massa. A multi-resolution technique based on shape optimization for the reconstruction of homogeneous dielectric objects. Inverse Problems, IOP Publishing, 2009, 25, 015009 (26pp). ⟨10.1088/0266-5611/25/1/015009⟩. ⟨hal-00365614⟩

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