Improving full-waveform inversion by wavefield reconstruction with the alternating direction method of multipliers
Full-waveform inversion (FWI) is an iterative nonlinear waveform matching procedure
subject to wave-equation constraint. FWI is highly nonlinear when the wave-equation …
subject to wave-equation constraint. FWI is highly nonlinear when the wave-equation …
Elastic least-squares reverse time migration
Z Feng, GT Schuster - Geophysics, 2017 - library.seg.org
We use elastic least-squares reverse time migration (LSRTM) to invert for the reflectivity
images of P-and S-wave impedances. Elastic LSRTM solves the linearized elastic-wave …
images of P-and S-wave impedances. Elastic LSRTM solves the linearized elastic-wave …
Optimal transport based seismic inversion: Beyond cycle skipping
B Engquist, Y Yang - Communications on Pure and Applied …, 2022 - Wiley Online Library
Full‐waveform inversion (FWI) is today a standard process for the inverse problem of
seismic imaging. PDE‐constrained optimization is used to determine unknown parameters …
seismic imaging. PDE‐constrained optimization is used to determine unknown parameters …
LsmGANs: Image-domain least-squares migration using a new framework of generative adversarial networks
Compared with the traditional adjoint migration, the least-squares migration (LSM) can
effectively mitigate the unbalanced illumination and limited resolution associated with finite …
effectively mitigate the unbalanced illumination and limited resolution associated with finite …
[HTML][HTML] 地震反演成像中的Hessian 算子研究
任浩然， 黄光辉， 王华忠， 陈生昌 - 地球物理学报, 2013 - html.rhhz.net
总结了牛顿类地震反演方法中Hessian 算子的作用, 对其在地震反演成像中的数学物理含义进行
了分析. Hessian 算子是误差泛函对模型参数的二阶导数, 反映了误差泛函对模型变化的二次型 …
了分析. Hessian 算子是误差泛函对模型参数的二阶导数, 反映了误差泛函对模型变化的二次型 …
Toward a dynamic concept of the subduction channel at erosive convergent margins with implications for interplate material transfer
P Vannucchi, F Sage, J Phipps Morgan… - Geochemistry …, 2012 - Wiley Online Library
Convergent plate boundaries accommodate intraplate displacement within a∼ 100–1000 m
thick shear zone. Marine geophysicists typically define this zone, the subduction channel …
thick shear zone. Marine geophysicists typically define this zone, the subduction channel …
Pervasive detachment faults within the slow spreading oceanic crust at the poorly coupled Antilles subduction zone
Oceanic crust formed at slow-spreading ridges is currently subducted in only a few places
on Earth and the tectonic and seismogenic imprint of the slow-spreading process is poorly …
on Earth and the tectonic and seismogenic imprint of the slow-spreading process is poorly …
The South Ecuador subduction channel: Evidence for a dynamic mega‐shear zone from 2D fine‐scale seismic reflection imaging and implications for material transfer
Tectonic processes that control the transition from poorly consolidated sediment entering the
subduction channel (SC) to the seismogenic zone are documented using seismic imaging …
subduction channel (SC) to the seismogenic zone are documented using seismic imaging …
A research on the Hessian operator in seismic inversion imaging
In this paper, we summarize the influence of Hessian operator in seismic inversion methods
and review the mathematical and physical meanings of the Hessian operator in the seismic …
and review the mathematical and physical meanings of the Hessian operator in the seismic …
GO_3D_OBS: the multi-parameter benchmark geomodel for seismic imaging method assessment and next-generation 3D survey design (version 1.0)
A Górszczyk, S Operto - Geoscientific Model Development, 2021 - gmd.copernicus.org
Detailed reconstruction of deep crustal targets by seismic methods remains a long-standing
challenge. One key to address this challenge is the joint development of new seismic …
challenge. One key to address this challenge is the joint development of new seismic …