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Shaping regularization in geophysical-estimation problems

delete2007-03-01
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Sergey Fomel *
DOI:10.1190/1.2433716delete
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Abstract

Abstract

En 中文
Regularization is a required component of geophysical-estimation problems that operate with insufficient data. The goal of regularization is to impose additional constraints on the estimated model. I introduce shaping regularization, a general method for imposing constraints by explicit mapping of the estimated model to the space of admissible models. Shaping regularization is integrated in a conjugate-gradient algorithm for iterative least-squares estimation. It provides the advantage of better control on the estimated model in comparison with traditional regularization methods and, in some cases, leads to a faster iterative convergence. Simple data interpolation and seismic-velocity estimation examples illustrate the concept.

Journal

Geophysics cover
Geophysics
IF:
3.2
Papers:
8.4K
Citations:
3.3W

Organization

No organization information available
Cited Papers

Cited Papers

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