Robust and efficient waveform-based velocity-model building by optimal transport in the pseudotime domain: Methodology

G Provenzano, R Brossier, L Métivier - Geophysics, 2023 - library.seg.org
Full-waveform inversion (FWI) aims at a broadband reconstruction of the subsurface
physical properties by fitting the entire recorded wavefield. In realistic exploration seismic …

The application of an optimal transport to a preconditioned data matching function for robust waveform inversion

B Sun, T Alkhalifah - Geophysics, 2019 - library.seg.org
Full-waveform inversion (FWI) promises a high-resolution model of the earth. It is, however,
a highly nonlinear inverse problem; thus, we iteratively update the subsurface model by …

Localized adaptive waveform inversion: theory and numerical verification

P Yong, R Brossier, L Métivier… - Geophysical Journal …, 2023 - academic.oup.com
Correctly interpreting phase events thanks to data processing techniques based on
correlation or deconvolution has been the focus of numerous studies in the field of high …

A computationally efficient Bayesian approach to full‐waveform inversion

S Berti, M Aleardi, E Stucchi - Geophysical Prospecting, 2024 - earthdoc.org
Conventional methods solve the full‐waveform inversion making use of gradient‐based
algorithms to minimize an error function, which commonly measure the Euclidean distance …

Robust full-waveform inversion with radon-domain matching filter

B Sun, T Alkhalifah - Geophysics, 2019 - library.seg.org
Cycle skipping is a severe issue in full-waveform inversion. One option to overcome it is to
extend the search space to allow for data comparisons beyond the “point-to-point” …

Adaptive traveltime inversion

B Sun, T Alkhalifah - Geophysics, 2019 - pubs.geoscienceworld.org
We have developed a method to obtain a misfit function for robust waveform inversion. In
this method, called adaptive traveltime inversion (ATI), a matching filter that matches …

Joint minimization of the mean and information entropy of the matching filter distribution for a robust misfit function in full-waveform inversion

B Sun, TA Alkhalifah - IEEE Transactions on Geoscience and …, 2020 - ieeexplore.ieee.org
A full-waveform inversion (FWI) is a highly nonlinear inversion methodology. FWI tends to
converge to a local minimum rather than a global one. We refer to this phenomenon as …

Improved full-waveform inversion for seismic data in the presence of noise based on the k-support norm

J Li, H Mikada, J Takekawa - Pure and Applied Geophysics, 2024 - Springer
In the inversion part of the full-waveform inversion (FWI) that brings high resolution in finding
a convergence point in the model space, a localized numerical optimization technique …

Joint reflection and diving FWI using graph-space optimal transport and structure-guided smoothing on benchmark data

G Provenzano, L Métivier, R Brossier - 82nd EAGE Annual Conference …, 2021 - earthdoc.org
Joint full waveform inversion (JFWI) builds a P-wave velocity (Vp) macromodel
simultaneously exploiting the information carried by diving waves and deep-reaching …

An anisotropic waveform inversion using an optimal transport matching filter objective: An application to an offshore field dataset

B Sun, T Alkhalifah - IEEE Transactions on Geoscience and …, 2023 - ieeexplore.ieee.org
Considering the conventional seismic wavelength and the nature of the Earth's layering,
seismic waves experience, in many parts of the subsurface, considerable anisotropy, and …