Multi-task learning for low-frequency extrapolation and elastic model building from seismic data
Low-frequency (LF) signal content in seismic data as well as a realistic initial model are key
ingredients for robust and efficient full-waveform inversions (FWIs). However, acquiring LF …
ingredients for robust and efficient full-waveform inversions (FWIs). However, acquiring LF …
3-D multiparameter full-waveform inversion for ocean-bottom seismic data using an efficient fluid–solid coupled spectral-element solver
Ocean-bottom seismic acquisition systems deployed on the seabed give access to three-
component geophone data and hydrophone data. Compared with conventional streamer …
component geophone data and hydrophone data. Compared with conventional streamer …
Acoustoelastic full-waveform inversion for transcranial ultrasound computed tomography
P Marty, C Boehm, A Fichtner - Medical Imaging 2021 …, 2021 - spiedigitallibrary.org
Full-waveform inversion applied to ultrasound computed tomography is a promising
technique to provide highresolution quantitative images of soft human tissues, which are …
technique to provide highresolution quantitative images of soft human tissues, which are …
3-D multicomponent full waveform inversion for shallow-seismic target: Ettlingen Line case study
In this work, we investigate methodological development and application of viscoelastic full
waveform inversion to a multicomponent source and receiver data set at the near-surface …
waveform inversion to a multicomponent source and receiver data set at the near-surface …
[PDF][PDF] EFWI: Multiparameter Benchmark Datasets for Elastic Full Waveform Inversion of Geophysical Properties.
In EFWI, the seismic source and receiver geometries remain aligned with the OPENFWI
dataset [1], except that the grid spacing is reduced to 5m in order to preserve the stability of …
dataset [1], except that the grid spacing is reduced to 5m in order to preserve the stability of …
Velocity-model building with enhanced shallow resolution using elastic waveform inversion—An example from onshore Oman
C Pérez Solano, RÉ Plessix - Geophysics, 2019 - library.seg.org
Full-waveform inversion is a powerful data-fitting technique that is used for velocity-model
building in seismic exploration. The inversion approach exploits the sensitivity of long-offset …
building in seismic exploration. The inversion approach exploits the sensitivity of long-offset …
Early arrival waveform inversion using data uncertainties and matching filters with application to near-surface seismic refraction data
We develop an early arrival waveform inversion (EAWI) technique for high-resolution near-
surface velocity estimation by iteratively updating the P-wave velocity model to minimize the …
surface velocity estimation by iteratively updating the P-wave velocity model to minimize the …
Diving-wave time-lapse delay for CO2 thin layer detection
We have derived an analytical approximate expression to estimate the delay in diving
seismic waves due to thin layers of CO2. The expression is valid for high frequencies and …
seismic waves due to thin layers of CO2. The expression is valid for high frequencies and …
Elastic versus acoustic inversion for marine surveys
Full wavefield inversion (FWI) is a powerful and elegant approach for seismic imaging that is
on the way to becoming the method of choice when processing exploration or global seismic …
on the way to becoming the method of choice when processing exploration or global seismic …
A synthetic study of acoustic full waveform inversion to improve seismic modelling of firn
The density structure of firn has implications for hydrological and climate modelling and for
ice shelf stability. The firn structure can be evaluated from depth models of seismic velocity …
ice shelf stability. The firn structure can be evaluated from depth models of seismic velocity …