A scaled gradient projection method for total variation regularized full waveform inversion

TitleA scaled gradient projection method for total variation regularized full waveform inversion
Publication TypeSINBAD Presentation
AuthorsErnie Esser, Tristan van Leeuwen, Aleksandr Y. Aravkin, Felix J. Herrmann
PublisherSINBAD
Year of Publication2014
Abstract

We propose a modification to the quadratic penalty formulation for seismic full waveform inversion proposed by van Leeuwen and Herrmann that includes convex constraints on the model. In particular, we show how to simultaneously constrain the total variation of the slowness squared while enforcing bound constraints to keep it within a physically realistic range. Synthetic experiments show that including total variation regularization can improve the recovery of a high velocity perturbation to a smooth background model.

KeywordsPresentation, private, SINBAD, SINBADSPRING2014, SLIM
URLhttps://www.slim.eos.ubc.ca/Publications/Private/Conferences/SINBAD/2014/Spring/esser2014SINBADsgp/esser2014SINBADsgp.pdf
Citation Keyesser2014SINBADsgp