Work

Tomographic inversion using ℓ1-norm regularization of wavelet coefficients

Year: 2007

Type: article

Abstract: We propose the use of ℓ1 regularization in a wavelet basis for the solution of linearized seismic tomography problems A m = 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.

Source: Geophysical Journal International

DOI: 10.1111/j.1365-246x.2007.03409.x

Authors: Ignace Loris, Guust Nolet, Ingrid Daubechies, F. A. Dahlen

Institutions: Vrije Universiteit Brussel, Princeton University

Language: English

Topic: Seismic Imaging and Inversion Techniques

Subfield: Geophysics

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: bronze

Funders: National Science Foundation, Vlaamse regering

OpenAlex ID: W2000771799