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Improved TV-CS Approaches for Inverse Scattering Problem.


ABSTRACT: Total Variation and Compressive Sensing (TV-CS) techniques represent a very attractive approach to inverse scattering problems. In fact, if the unknown is piecewise constant and so has a sparse gradient, TV-CS approaches allow us to achieve optimal reconstructions, reducing considerably the number of measurements and enforcing the sparsity on the gradient of the sought unknowns. In this paper, we introduce two different techniques based on TV-CS that exploit in a different manner the concept of gradient in order to improve the solution of the inverse scattering problems obtained by TV-CS approach. Numerical examples are addressed to show the effectiveness of the method.

SUBMITTER: Bevacqua MT 

PROVIDER: S-EPMC4606074 | biostudies-other | 2015

REPOSITORIES: biostudies-other

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