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Deformable image registration is a fundamental task in medical image analysis, aiming to establish a dense and non-linear correspondence between a pair of images. Previous deep-learning studies usually employ supervised neural networks to…

计算机视觉与模式识别 · 计算机科学 2018-09-11 Jun Zhang

Recent image-to-image translation models have shown great success in mapping local textures between two domains. Existing approaches rely on a cycle-consistency constraint that supervises the generators to learn an inverse mapping. However,…

计算机视觉与模式识别 · 计算机科学 2021-12-15 Wenju Xu , Guanghui Wang

Inverse problems governed by partial differential equations (PDEs) are crucial in science and engineering. They are particularly challenging due to ill-posedness, data sparsity, and the added complexity of irregular geometries. Classical…

机器学习 · 计算机科学 2025-09-30 Sifan Wang , Zhikai Wu , David van Dijk , Lu Lu

Velocity-model building is a fundamental component of seismic imaging, yet it remains a challenging inverse problem due to limited data coverage, nonlinearity, and the need to integrate heterogeneous information such as well logs. We…

地球物理 · 物理学 2026-03-03 Francesco Brandolin , Tariq Alkhalifah

Understanding how nano- or micro-scale structures and material properties can be optimally configured to attain specific functionalities remains a fundamental challenge. Photonic metasurfaces, for instance, can be spectrally tuned through…

Foundation models have transformed natural language processing and computer vision, and their impact is now reshaping remote sensing image analysis. With powerful generalization and transfer learning capabilities, they align naturally with…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Liling Yang , Ning Chen , Jun Yue , Yidan Liu , Jiayi Ma , Pedram Ghamisi , Antonio Plaza , Leyuan Fang

Seismic full-waveform inversion (FWI), which uses iterative methods to estimate high-resolution subsurface models from seismograms, is a powerful imaging technique in exploration geophysics. In recent years, the computational cost of FWI…

地球物理 · 物理学 2023-11-28 Shihang Feng , Youzuo Lin , Brendt Wohlberg

Inverse problems and inverse design in multiphase media, i.e., recovering or engineering microstructures to achieve target macroscopic responses, require operating on discrete-valued material fields, rendering the problem non-differentiable…

机器学习 · 统计学 2026-02-17 Matthaios Chatzopoulos , Phaedon-Stelios Koutsourelakis

Full waveform inversion (FWI) is crucial for reconstructing high-resolution subsurface models, but it is often hindered, considering the limited data, by its null space resulting in low-resolution models, and more importantly, by its…

地球物理 · 物理学 2025-10-23 Xinquan Huang , Fu Wang , Tariq Alkhalifah

Full-waveform inversion (FWI) is an advanced technique for reconstructing high-resolution subsurface physical parameters by progressively minimizing the discrepancy between observed and predicted seismic data. However, conventional FWI…

地球物理 · 物理学 2025-03-04 Chao Song , Tariq Alkhalifah , Umair Bin Waheed , Silin Wang , Cai Liu

We present Uni-Fusion, a universal continuous mapping framework for surfaces, surface properties (color, infrared, etc.) and more (latent features in CLIP embedding space, etc.). We propose the first universal implicit encoding model that…

计算机视觉与模式识别 · 计算机科学 2024-02-06 Yijun Yuan , Andreas Nuechter

Full-waveform inversion (FWI) is a method that utilizes seismic data to invert the physical parameters of subsurface media by minimizing the difference between simulated and observed waveforms. Due to its ill-posed nature, FWI is…

地球物理 · 物理学 2025-02-18 Xintong Dong , Zhengyi Yuan , Jun Lin , Shiqi Dong , Xunqian Tong , Yue Li

Seismic acoustic impedance plays a crucial role in lithological identification and subsurface structure interpretation. However, due to the inherently ill-posed nature of the inversion problem, directly estimating impedance from post-stack…

机器学习 · 计算机科学 2025-06-17 Jie Chen , Hongling Chen , Jinghuai Gao , Chuangji Meng , Tao Yang , XinXin Liang

We propose and test a method to reduce the dimensionality of Full Waveform Inversion (FWI) inputs as computational cost mitigation approach. Given modern seismic acquisition systems, the data (as input for FWI) required for an…

机器学习 · 计算机科学 2026-01-06 Maayan Gelboim , Amir Adler , Mauricio Araya-Polo

The FORUM (Far-infrared Outgoing Radiation Understanding and Monitoring) mission will provide, for the first time, systematic far-infrared spectral measurements of Earth's outgoing radiation, enabling improved understanding of atmospheric…

大气与海洋物理 · 物理学 2026-01-01 Cristina Sgattoni , Luca Sgheri , Matthias Chung , Michele Martinazzo

Full waveform inversion (FWI) aims to reconstruct subsurface velocity models from observed seismic wavefields and has recently benefited from advances in deep learning (DL). The performance of DL-based FWI critically depends on the…

机器学习 · 计算机科学 2026-03-18 Zekai Guo , Lihui Chai , Ye Li

This review explores the integration of deep learning (DL) with full-waveform inversion (FWI) for enhanced seismic imaging and subsurface characterization. It covers FWI and DL fundamentals, geophysical applications (velocity estimation,…

地球物理 · 物理学 2025-02-26 Christopher Zerafa , Pauline Galea , Cristiana Sebu

Subsurface imaging involves solving full waveform inversion (FWI) to predict geophysical properties from measurements. This problem can be reframed as an image-to-image translation, with the usual approach being to train an encoder-decoder…

地球物理 · 物理学 2024-05-22 Yinan Feng , Yinpeng Chen , Peng Jin , Shihang Feng , Zicheng Liu , Youzuo Lin

Computational imaging plays a vital role in various scientific and medical applications, such as Full Waveform Inversion (FWI), Computed Tomography (CT), and Electromagnetic (EM) inversion. These methods address inverse problems by…

机器学习 · 计算机科学 2024-10-14 Yinan Feng , Yinpeng Chen , Yueh Lee , Youzuo Lin

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