6 papers
Application of an unbalanced optimal transport distance and a mixed L1/Wasserstein distance to full waveform inversion
Da Li, Michael P. Lamoureux, Wenyuan Liao
Full waveform inversion (FWI) is an important and popular technique in subsurface earth property estimation. However, using the least-squares norm in the misfit function often lead…
Efficient and Stable Finite Difference Modelling of Acoustic Wave Propagation in Variable-density Media
Da Li, Keran Li, Wenyuan Liao
In this paper, we consider the development and analysis of a new explicit compact high-order finite difference scheme for acoustic wave equation formulated in divergence form, whic…
A generalized optimal fourth-order finite difference scheme for a 2D Helmholtz equation with the perfectly matched layer boundary condition
Hatef Dastour, Wenyuan Liao
A crucial part of successful wave propagation related inverse problems is an efficient and accurate numerical scheme for solving the seismic wave equations. In particular, the nume…
An Efficient and high accuracy finite-difference scheme for the acoustic wave equation in 3D heterogeneous media
Keran Li, Wenyuan Liao
Efficient and accurate numerical simulation of 3D acoustic wave propagation in heterogeneous media plays an important role in the success of seismic full waveform inversion (FWI) p…
A compact high order Alternating Direction Implicit method for three-dimensional acoustic wave equation with variable coefficient
Keran Li, Wenyuan Liao, Yaoting Lin
Efficient and accurate numerical simulation of seismic wave propagation is important in various Geophysical applications such as seismic full waveform inversion (FWI) problem. Howe…
Misfit function for full waveform inversion based on Earth Mover's Distance with dynamic formulation
Peng Yong, Wenyuan Liao, Jianping Huang +2
Conventional full waveform inversion (FWI) using least square distance (LSD) between the observed and predicted seismograms suffers from local minima. Recently, earth mover's dista…