173 citations · 437 across the 31 of their papers we have counts for
40 papers
Uncertainty Quantification in Seismic Inversion Through Integrated Importance Sampling and Ensemble Methods
Luping Qu, Mauricio Araya-Polo, Laurent Demanet
Seismic inversion is essential for geophysical exploration and geological assessment, but it is inherently subject to significant uncertainty. This uncertainty stems primarily from…
The reflection coefficient of a fractional reflector
Laurent Demanet, Olivier Lafitte
This paper considers the question of characterizing the behavior of waves reflected by a fractional singularity of the wave speed profile, i.e., of the form \[ c(x_1, x_2, x_3) = c…
Superresolution with the zero-phase imaging condition
Sarah Greer, Laurent Demanet
Wave-based imaging techniques use wavefield data from receivers on the boundary of a domain to produce an image of the underlying structure in the domain of interest. These images…
Redatuming physical systems using symmetric autoencoders
Pawan Bharadwaj, Matthew Li, Laurent Demanet
This paper considers physical systems described by hidden states and indirectly observed through repeated measurements corrupted by unmodeled nuisance parameters. A network-based r…
Accurate and Robust Deep Learning Framework for Solving Wave-Based Inverse Problems in the Super-Resolution Regime
Matthew Li, Laurent Demanet, Leonardo Zepeda-Núñez
We propose an end-to-end deep learning framework that comprehensively solves the inverse wave scattering problem across all length scales. Our framework consists of the newly intro…
Deep learning for low frequency extrapolation of multicomponent data in elastic full waveform inversion
Hongyu Sun, Laurent Demanet
Full waveform inversion (FWI) strongly depends on an accurate starting model to succeed. This is particularly true in the elastic regime: The cycle-skipping phenomenon is more seve…