Pros and cons of full- and reduced-space methods for Wavefield Reconstruction Inversion

TitlePros and cons of full- and reduced-space methods for {Wavefield} {Reconstruction} {Inversion}
Publication TypeConference
Year of Publication2015
AuthorsFelix J. Herrmann, Bas Peters
Conference NameSIAM Conference on Mathematical and Computational Issues in the Geosciences
Month06-07
KeywordsFWI, private, SIAM, WRI
Abstract

By insisting on fitting observed data, Wavefield Reconstruction Inversion (WRI) is no longer cycle skipped and therefore less reliant on the accuracy of starting models. While extending the search space mitigates local minima, there are challenges scaling to 3D seismic when using reduced-space methods that require accurate solves. Conversely, full-space methods allow for inaccurate solves but require storage of all wavefields. We weigh pros and cons of these two approaches in the seismic context.

Notes

(SIAM Conference on Mathematical and Computational Issues in the Geosciences, Stanford University, California)

Presentation

https://www.slim.eos.ubc.ca/Publications/Public/Conferences/SIAM/2015/he...

Citation Keyherrmann2015SIAMpcf