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We introduce a fast and invertible approximation for data simulated as 2D planar meshes with connectivities along the poloidal dimension in deforming 3D toroidal (donut-like) spaces generated by fusion simulations. In fusion simulations,…

图形学 · 计算机科学 2025-06-02 Congrong Ren , Hanqi Guo

Magnetic Resonance Imaging (MRI) is a crucial diagnostic tool, but high-resolution scans are often slow and expensive due to extensive data acquisition requirements. Traditional MRI reconstruction methods aim to expedite this process by…

图像与视频处理 · 电气工程与系统科学 2025-11-11 Emmanuelle Bourigault , Abdullah Hamdi , Amir Jamaludin

During relativistic magnetic reconnection, antiparallel magnetic fields undergo a rapid change in topology, releasing a large amount of energy in the form of non-thermal particle acceleration. This work explores the application of mesh…

Optical neural networks are emerging as a powerful and versatile tool for processing optical signals directly in the optical domain with superior speed, integrability, and functionality. Their application to optical polarization enables…

光学 · 物理学 2025-06-24 Alessandro Petrini , Claudio Conti , Davide Pierangeli

In this paper we explore the possibility for solving the 3D Maxwell's equations in the presence of nonlinear and/or inhomogeneous material response. We propose using a hybrid approach which combines a bound- ary integral representation with…

数值分析 · 数学 2019-08-07 Aihua Lin , Per Kristen Jakobsen

Automated sample preparation and electron microscopy enables acquisition of very large image data sets. These technical advances are of special importance to the field of neuroanatomy, as 3D reconstructions of neuronal processes at the nm…

Piecewise Linear Interface Construction (PLIC) is frequently used to geometrically reconstruct fluid interfaces in Computational Fluid Dynamics (CFD) modeling of two-phase flows. PLIC reconstructs interfaces from a scalar field that…

流体动力学 · 物理学 2021-07-29 Mohammadmehdi Ataei , Erfan Pirmorad , Franco Costa , Sejin Han , Chul B Park , Markus Bussmann

We introduce a novel neural network-based computational pipeline as a representation-agnostic slicer for multi-axis 3D printing. This advanced slicer can work on models with diverse representations and intricate topology. The approach…

计算几何 · 计算机科学 2024-05-28 Tao Liu , Tianyu Zhang , Yongxue Chen , Yuming Huang , Charlie C. L. Wang

Multimodal image alignment involves finding spatial correspondences between volumes varying in appearance and structure. Automated alignment methods are often based on local optimization that can be highly sensitive to their initialization.…

图像与视频处理 · 电气工程与系统科学 2024-10-28 Johan Öfverstedt , Joakim Lindblad , Nataša Sladoje

We analyse wave propagation in two-dimensional bianisotropic media with the Finite Element Method (FEM). We start from the Maxwell-Tellegen's equations in bianisotropic media, and derive some system of coupled Partial Difference Equations…

光学 · 物理学 2016-12-21 Yan Liu , Boris Gralak , Sebastien Guenneau

In this study, Physics-Informed Neural Networks (PINNs) are skilfully applied to explore a diverse range of pulsar magneto-spheric models, specifically focusing on axisymmetric cases. The study successfully reproduced various axisymmetric…

高能天体物理现象 · 物理学 2023-10-11 Petros Stefanou , Jorge F. Urbán , José A. Pons

Reconstructing the geometry and appearance of objects from photographs taken in different environments is difficult as the illumination and therefore the object appearance vary across captured images. This is particularly challenging for…

计算机视觉与模式识别 · 计算机科学 2024-12-20 Hadi Alzayer , Philipp Henzler , Jonathan T. Barron , Jia-Bin Huang , Pratul P. Srinivasan , Dor Verbin

The self-consistent modeling of vacuum polarization due to virtual electron-positron fluctuations is of relevance for many near term experiments associated with high intensity radiation sources and represents a milestone in describing…

等离子体物理 · 物理学 2021-07-07 Thomas Grismayer , Rui Torres , Pedro Carneiro , Fàbio Cruz , Ricardo Fonseca , Luís O. Silva

Inverse design through optimization of dielectric photonic devices is a very powerful tool. However so far the direct solver used in the design process is almost always restricted to solve Maxwell's equation in two dimensions (2D). Here we…

其他凝聚态物理 · 物理学 2008-05-08 Andreas Hakansson , Stefano Boscolo , Michele Midrio

Most research on novel techniques for 3D Medical Image Segmentation (MIS) is currently done using Deep Learning with GPU accelerators. The principal challenge of such technique is that a single input can easily cope computing resources, and…

机器学习 · 计算机科学 2021-11-01 Josep Lluis Berral , Oriol Aranda , Juan Luis Dominguez , Jordi Torres

A major challenge in light-matter simulations is bridging the disparate time and length scales of electrodynamics and molecular dynamics. Current computational approaches often rely on heuristic approximations of either the electromagnetic…

计算物理 · 物理学 2026-02-27 Xinwei Ji , Andres Felipe Bocanegra Vargas , Gang Meng , Tao E. Li

In recent years there has been great interest in using deep neural networks (DNN) for super-resolution image reconstruction including for structured illumination microscopy (SIM). While these methods have shown very promising results, they…

图像与视频处理 · 电气工程与系统科学 2023-03-22 Zachary Burns , Zhaowei Liu

This article trained a network for perceiving three-dimensional motion information of binocular vision target, which can provide real-time three-dimensional coordinate, velocity, and acceleration, and has a basic spatiotemporal perception…

计算机视觉与模式识别 · 计算机科学 2025-12-02 Jiazhao Shi , Pan Pan , Haotian Shi

Polarization microscopy provides insights into the structure and orientational organization of biomolecules and their architectures in cells. The above key functional signatures, which are natively 3D, can be only detected in 2D for a…

Head MRI pre-processing involves converting raw images to an intensity-normalized, skull-stripped brain in a standard coordinate space. In this paper, we propose an end-to-end weakly supervised learning approach, called Neural…

图像与视频处理 · 电气工程与系统科学 2023-03-23 Xinzi He , Alan Wang , Mert R. Sabuncu
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