中文
相关论文

相关论文: Fast Spherical Centroidal Voronoi Mesh Generation:…

200 篇论文

Space-time video super-resolution (STVSR) aims to increase the spatial and temporal resolutions of low-resolution and low-frame-rate videos. Recently, deformable convolution based methods have achieved promising STVSR performance, but they…

计算机视觉与模式识别 · 计算机科学 2021-05-03 Gang Xu , Jun Xu , Zhen Li , Liang Wang , Xing Sun , Ming-Ming Cheng

The sea surface temperature (SST), a key environmental parameter, is crucial to optimizing production planning, making its accurate prediction a vital research topic. However, the inherent nonlinearity of the marine dynamic system presents…

机器学习 · 计算机科学 2025-04-25 Yin Wang , Chunlin Gong , Xiang Wu , Hanleran Zhang

Cortical surface reconstruction (CSR) from MRI is key to investigating brain structure and function. While recent deep learning approaches have significantly improved the speed of CSR, a substantial amount of runtime is still needed to map…

图像与视频处理 · 电气工程与系统科学 2023-12-12 Xiaoyang Chen , Junjie Zhao , Siyuan Liu , Sahar Ahmad , Pew-Thian Yap

3D reconstruction in large-scale scenes is a fundamental task in 3D perception, but the inherent trade-off between accuracy and computational efficiency remains a significant challenge. Existing methods either prioritize speed and produce…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Jungho Lee , Minhyeok Lee , Sunghun Yang , Minseok Kang , Sangyoun Lee

Effective transport properties of heterogeneous structures are predicted by geometric microstructural parameters, but these can be difficult to calculate. Here, a boundary element code with a recurrent series method accurately and…

无序系统与神经网络 · 物理学 2021-08-24 Matthew D. Arnold

The de novo generation of molecules with desirable properties is a critical challenge, where diffusion models are computationally intensive and autoregressive models struggle with error propagation. In this work, we introduce the Graph…

机器学习 · 计算机科学 2025-12-03 Haozhuo Zheng , Cheng Wang , Yang Liu

An extension of the restricted Delaunay-refinement algorithm for surface mesh generation is described, where a new point-placement scheme is introduced to improve element quality in the presence of mesh size constraints. Specifically, it is…

计算几何 · 计算机科学 2016-06-28 Darren Engwirda , David Ivers

The paper presents a strategy to construct an incremental Singular Value Decomposition (SVD) for time-evolving, spatially 3D discrete data sets. A low memory access procedure for reducing and deploying the snapshot data is presented.…

数学软件 · 计算机科学 2023-02-21 Niklas Kühl , Hendrik Fischer , Michael Hinze , Thomas Rung

We introduce a new family of high order accurate semi-implicit schemes for the solution of non-linear hyperbolic partial differential equations on unstructured polygonal meshes. The time discretization is based on a splitting between…

This work concerns adaptive refinement procedures for meshes of polygonal virtual elements. Specifically, refinement procedures previously proposed by the authors for structured meshes are generalized for the challenging case of arbitrary…

Quantization of a probability distribution is the process of estimating a given probability by a discrete probability that assumes only a finite number of levels in its support. Centroidal Voronoi tessellations (CVT) are Voronoi…

动力系统 · 数学 2017-04-10 Mrinal Kanti Roychowdhury

Diffusion-weighted magnetic resonance imaging (DW-MRI) is the only non-invasive approach for estimation of intra-voxel tissue microarchitecture and reconstruction of in vivo neural pathways for the human brain. With improvement in…

图像与视频处理 · 电气工程与系统科学 2020-02-21 Vishwesh Nath , Sudhir K. Pathak , Kurt G. Schilling , Walt Schneider , Bennett A. Landman

Latent diffusion models for image generation have crossed a quality threshold which enabled them to achieve mass adoption. Recently, a series of works have made advancements towards replicating this success in the 3D domain, introducing…

计算机视觉与模式识别 · 计算机科学 2023-03-29 Anchit Gupta , Wenhan Xiong , Yixin Nie , Ian Jones , Barlas Oğuz

The simulation of many-particle systems often requires the detailed knowledge of proximity relations to reduce computational complexity and to provide a basis for specific calculations. Here we describe the basic scheme of a simulator of…

生物物理 · 物理学 2007-05-23 Alessio Del Fabbro , Roberto Chignola , Edoardo Milotti

As the consumption of traditional energy sources intensifies and their adverse environmental impacts become more pronounced, wave energy stands out as a highly promising member of the renewable energy family due to its high energy density,…

信号处理 · 电气工程与系统科学 2025-09-25 Huipeng Liu , Zhichao Zhu , Yuan Zhou , Changlu Li

Vertex-centroid schemes are cell-centered finite volume schemes for conservation laws which make use of vertex values to construct high resolution schemes. The vertex values must be obtained through a consistent averaging (interpolation)…

数值分析 · 计算机科学 2011-12-20 Praveen Chandrashekar , Ashish Garg

Over the last couple of decades, there has been a surge in various approaches to multiple-point statistics simulation, commonly referred to as MPS. These methods have aimed to improve several critical aspects of realism in the results,…

Meshes composed of well-centered simplices have nice orthogonal dual meshes (the dual Voronoi diagram). This is useful for certain numerical algorithms that prefer such primal-dual mesh pairs. We prove that well-centered meshes also have…

计算几何 · 计算机科学 2010-01-25 Evan VanderZee , Anil N. Hirani , Damrong Guoy , Edgar Ramos

Meshes are the de facto 3D representation in the industry but are labor-intensive to produce. Recently, a line of research has focused on autoregressively generating meshes. This approach processes meshes into a sequence composed of…

计算机视觉与模式识别 · 计算机科学 2024-12-03 Yiwen Chen , Yikai Wang , Yihao Luo , Zhengyi Wang , Zilong Chen , Jun Zhu , Chi Zhang , Guosheng Lin

Intermediate features of a pre-trained model have been shown informative for making accurate predictions on downstream tasks, even if the model backbone is kept frozen. The key challenge is how to utilize these intermediate features given…

机器学习 · 计算机科学 2023-04-28 Cheng-Hao Tu , Zheda Mai , Wei-Lun Chao