Tomographic inversion using l1-norm regularization of wavelet coefficients
نویسندگان
چکیده
We propose the use of l1 regularization in a wavelet basis for the solution of linearized seismic tomography problems Am = d, allowing for the possibility of sharp discontinuities superimposed on a smoothly varying background. An iterative method is used to find a sparse solution m that contains no more fine-scale structure than is necessary to fit the data d to within its assigned errors. keywords: inverse problem, one-norm, sparsity, tomography, wavelets
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تاریخ انتشار 2008