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EnglishThe problem of imaging arbitrary-shaped targets is addressed through a methodological generalization of the compressive sensing (CS) paradigm. The Color CS (C-CS) methodology consists of a two-level hierarchical scheme where, at the first level and using a basis dictionary, several sparsity-regularized inversions are performed in parallel, while, at the second level, the retrieved expansion coefficients are compared to select the most reliable reconstruction according to a sparsity-rewarding criterion. Within the Born-approximated formulation of the microwave imaging problem, a Bayesian solver and a filtered ℓ0 -norm criterion are employed to implement the first and the second C-CS levels, respectively. Selected numerical results, representative of an extensive validation, are presented to illustrate the features, the advantages, and the limitations of C-CS also in comparison with some competitive state-of-the-art inversion techniques.
Color compressive sensing imaging of arbitrary-shaped scatterers / Anselmi, N.; Oliveri, G.; Hannan, M. A.; Salucci, M.; Massa, and A.. - In: IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES. - ISSN 0018-9480. - STAMPA. - 65:6(2017), pp. 1986-1999. [10.1109/TMTT.2016.2645570]
| Titolo: | Color compressive sensing imaging of arbitrary-shaped scatterers | |
| Autori: | Anselmi, N.; Oliveri, G.; Hannan, M. A.; Salucci, M.; Massa, and A. | |
| Autori Unitn: | ||
| Titolo del periodico: | IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | |
| Anno di pubblicazione: | 2017 | |
| Numero e parte del fascicolo: | 6 | |
| Codice identificativo Scopus: | 2-s2.0-85010651901 | |
| Codice identificativo WOS: | WOS:000402863000007 | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1109/TMTT.2016.2645570 | |
| Handle: | http://hdl.handle.net/11572/189521 | |
| Citazione: | Color compressive sensing imaging of arbitrary-shaped scatterers / Anselmi, N.; Oliveri, G.; Hannan, M. A.; Salucci, M.; Massa, and A.. - In: IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES. - ISSN 0018-9480. - STAMPA. - 65:6(2017), pp. 1986-1999. [10.1109/TMTT.2016.2645570] | |
| Appare nelle tipologie: | 03.1 Articolo su rivista (Journal article) |
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http://hdl.handle.net/11572/189521
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