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Full waveform inversion (FWI) has recently become a favorite technique for the inverse problem of finding properties in the earth from measurements of vibrations of seismic waves on the surface. Mathematically, FWI is PDE constrained…

数值分析 · 数学 2018-10-23 Björn Engquist , Yunan Yang

GPR full-waveform inversion optimizes the subsurface property model iteratively to match the entire waveform information. However, the model gradients derived from wavefield continuation often contain errors, such as ghost values and…

地球物理 · 物理学 2024-10-14 Peng Jiang , Kun Wang , Jiaxing Wang , Zeliang Feng , Shengjie Qiao , Runhuai Deng , Fengkai Zhang

Full waveform inversion (FWI) is widely used in geophysics to reconstruct high-resolution velocity maps from seismic data. The recent success of data-driven FWI methods results in a rapidly increasing demand for open datasets to serve the…

机器学习 · 计算机科学 2023-06-27 Chengyuan Deng , Shihang Feng , Hanchen Wang , Xitong Zhang , Peng Jin , Yinan Feng , Qili Zeng , Yinpeng Chen , Youzuo Lin

In the past five years, deep learning methods have become state-of-the-art in solving various inverse problems. Before such approaches can find application in safety-critical fields, a verification of their reliability appears mandatory.…

机器学习 · 计算机科学 2023-01-18 Martin Genzel , Jan Macdonald , Maximilian März

Full Waveform Inversion (FWI) is a modeling algorithm used for seismic data processing and subsurface structure inversion. Theoretically, the main advantage of FWI is its ability to obtain useful subsurface structure information, such as…

地球物理 · 物理学 2023-09-26 Jiahang Li , Hitoshi Mikada , Junichi Takekawa

Seismic full-waveform inversion (FWI) uses full seismic records to estimate subsurface velocity structure. This requires a highly nonlinear and nonunique inverse problem to be solved, and Bayesian methods have been used to quantify…

地球物理 · 物理学 2021-04-13 Xin Zhang , Andrew Curtis

Spatially 3-dimensional seismic full waveform inversion (3D FWI) is a highly nonlinear and computationally demanding inverse problem that constructs 3D subsurface seismic velocity structures using seismic waveform data. To characterise…

地球物理 · 物理学 2025-04-21 Xuebin Zhao , Andrew Curtis

In recent years, the application of artificial intelligence (AI) in wireless communications has demonstrated inherent robustness against wireless channel distortions. Most existing works empirically leverage this robustness to yield…

信息论 · 计算机科学 2025-07-09 Yangshuo He , Guanding Yu , Huaiyu Dai

Full Waveform Inversion (FWI) is an advanced geophysical inversion technique. In fields such as oil exploration and geology, FWI is used for providing images of subsurface structures with higher resolution. The conventional algorithm…

地球物理 · 物理学 2023-11-06 Jiahang Li , Hitoshi Mikada , Junichi Takekawa

Full Waveform Inversion (FWI) is a critical technique in subsurface imaging, aiming to reconstruct high-resolution subsurface properties from surface measurements. Acoustic FWI involves two physical modalities, seismic waveforms and…

地球物理 · 物理学 2026-01-12 Yinan Feng , Hanchen Wang , Yinpeng Chen , Luoyuan Zhang , Jeeun Kang , Yixuan Wu , Young Jin Kim , Youzuo Lin

Bayesian full waveform inversion (FWI) offers uncertainty-aware subsurface models; however, posterior sampling directly on observed seismic shot records is rarely practical at the field scale because each sample requires numerous…

地球物理 · 物理学 2025-12-16 Mohammad H. Taufik , Tariq Alkhalifah

Full waveform inversion (FWI) is capable of reconstructing subsurface properties with high resolution from seismic data. However, conventional FWI faces challenges such as cycle-skipping and high computational costs. Recently, deep learning…

地球物理 · 物理学 2024-10-30 Hao Zhang , Yuanyuan Li , Jianping Huang

Full-waveform inversion (FWI) is a seismic imaging method that provides quantitative inference about subsurface properties with a wavelength-scale resolution. Its frequency-domain formulation is computationally efficient when processing…

最优化与控制 · 数学 2022-02-18 Hossein S. Aghamiry , Ali Gholami , Kamal Aghazade , Mahdi Sonbolestan , Stephane Operto

Edema is a potential indicator of underlying pathological changes. However, its low-contrast signature is often masked in conventional B-mode imaging by strong scatterers, making reliable detection challenging. Ultrasound (US) provides a…

信号处理 · 电气工程与系统科学 2026-03-09 Ruizhi Zhang , Yhonatan Kvich , Rui Guo , Oded Cohen , Yonina C. Eldar

Full-Waveform Inversion (FWI) has now become a widely accepted tool to obtain high-resolution velocity models from seismic data. Typically, the velocity model in its discrete form is represented on a rectangular grid, and we solve for the…

地球物理 · 物理学 2022-01-25 Reetam Biswas , Mrinal K. Sen

Seismic full-waveform inversion (FWI) provides high resolution images of the subsurface by exploiting information in the recorded seismic waveforms. This is achieved by solving a highly nonnlinear and nonunique inverse problem. Bayesian…

地球物理 · 物理学 2023-02-22 Xin Zhang , Angus Lomas , Muhong Zhou , York Zheng , Andrew Curtis

We consider the high-resolution seismic imaging method called full-waveform inversion (FWI). FWI is a data fitting method aimed at inverting for subsurface mechanical parameters. Despite the large adoption of FWI by the academic and…

地球物理 · 物理学 2022-04-20 Ludovic Métivier , Romain Brossier , Félix Kpadonou , Jérémie Messud , Arnaud Pladys

Data-driven deep learning is considered a promising solution for ground-penetrating radar (GPR) full-waveform inversion (FWI), while its generalization ability is limited due to the heavy reliance on abundant labeled samples. In contrast,…

地球物理 · 物理学 2026-01-16 Huilin Zhou , Xin Liu , Kexiang Wang , Shufan Hu

Full Waveform Inversion (FWI) is a successful and well-established inverse method for reconstructing material models from measured wave signals. In the field of seismic exploration, FWI has proven particularly successful in the…

计算工程、金融与科学 · 计算机科学 2023-12-05 Tim Bürchner , Philipp Kopp , Stefan Kollmannsberger , Ernst Rank

Deep neural networks give state-of-the-art accuracy for reconstructing images from few and noisy measurements, a problem arising for example in accelerated magnetic resonance imaging (MRI). However, recent works have raised concerns that…

图像与视频处理 · 电气工程与系统科学 2021-06-14 Mohammad Zalbagi Darestani , Akshay S. Chaudhari , Reinhard Heckel