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We provide a framework for the design and analysis of dynamic programming algorithms for surface-embedded graphs on n vertices and branchwidth at most k. Our technique applies to general families of problems where standard dynamic…

数据结构与算法 · 计算机科学 2015-03-19 Juanjo Rué , Ignasi Sau , Dimitrios M. Thilikos

Positional encodings are a common component of neural scene reconstruction methods, and provide a way to bias the learning of neural fields towards coarser or finer representations. Current neural surface reconstruction methods use a…

计算机视觉与模式识别 · 计算机科学 2024-12-09 Thomas Walker , Octave Mariotti , Amir Vaxman , Hakan Bilen

We present a new algorithm for the automatic one-shot generation of scattered node sets on irregular 2D and 3D domains using Poisson disk sampling coupled to novel parameter-free, high-order parametric Spherical Radial Basis Function…

数据结构与算法 · 计算机科学 2018-06-11 Varun Shankar , Robert M. Kirby , Aaron L. Fogelson

This paper presents an efficient automatic color image segmentation method using a seeded region growing and merging method based on square elemental regions. Our segmentation method consists of the three steps: generating seed regions,…

计算机视觉与模式识别 · 计算机科学 2017-11-28 Hisashi Shimodaira

Given a unirational parameterization of a surface, we present a general algorithm to determine a birational parameterization without using parameterization algorithms. Additionally, if the surface is assumed to have a birational…

代数几何 · 数学 2022-11-15 Jorge Caravantes , Sonia Pérez-Díaz , J. Rafael Sendra

Domain generalization seeks to develop models trained on a limited set of source domains that are capable of generalizing effectively to unseen target domains. While the predominant approach leverages large-scale pre-trained vision models…

计算机视觉与模式识别 · 计算机科学 2025-08-26 Bin Pan , Shiyu Shen , Zongbin Wang , Zhenwei Shi , Xia Xu

Let $(\Sigma,p)$ be a pointed Riemann surface of genus $g\geq 1$. For any integer $k\geq 1$, we parametrize the space of meromorphic quadratic differentials on $\Sigma$ with a pole of order $(k+2)$ at $p$, having a connected critical graph…

微分几何 · 数学 2015-05-13 Subhojoy Gupta , Michael Wolf

Squared tensor networks (TNs) and their generalization as parameterized computational graphs -- squared circuits -- have been recently used as expressive distribution estimators in high dimensions. However, the squaring operation introduces…

机器学习 · 计算机科学 2025-01-22 Lorenzo Loconte , Antonio Vergari

We estimate the spatial distribution of heterogeneous physical parameters involved in the formation of magnetic domain patterns of polycrystalline thin films by using convolutional neural networks. We propose a method to obtain a spatial…

材料科学 · 物理学 2023-11-03 Naoya Mamada , Masaichiro Mizumaki , Ichiro Akai , Toru Aonishi

We present a scale-invariant, template-based segmentation paradigm that sets up a graph and performs a graph cut to separate an object from the background. Typically graph-based schemes distribute the nodes of the graph uniformly and…

计算机视觉与模式识别 · 计算机科学 2012-05-31 Jan Egger , Bernd Freisleben , Christopher Nimsky , Tina Kapur

We present a domain decomposition approach for the computation of the electromagnetic field within periodic structures. We use a Schwarz method with transparent boundary conditions at the interfaces of the domains. Transparent boundary…

数值分析 · 数学 2011-02-24 Achim Schädle , Lin Zschiedrich , Sven Burger , Roland Klose , Frank Schmidt

The typical goal of surface remeshing consists in finding a mesh that is (1) geometrically faithful to the original geometry, (2) as coarse as possible to obtain a low-complexity representation and (3) free of bad elements that would hamper…

图形学 · 计算机科学 2016-11-08 Kaimo Hu , Dong-Ming Yan , David Bommes , Pierre Alliez , Bedrich Benes

We classify real families of minimal degree rational curves that cover an embedded rational surface. A corollary is that if the projective closure of a smooth surface is not biregular isomorphic to the projective closure of the unit-sphere,…

代数几何 · 数学 2021-03-09 Niels Lubbes

Getting deep convolutional neural networks to perform well requires a large amount of training data. When the available labelled data is small, it is often beneficial to use transfer learning to leverage a related larger dataset (source) in…

机器学习 · 计算机科学 2021-10-26 Lukas Hedegaard Morsing , Omar Ali Sheikh-Omar , Alexandros Iosifidis

Traditional stereo matching algorithms like Semi-Global Block Matching (SGBM) with Weighted Least Squares (WLS) filtering offer speed advantages over neural networks for UAV applications, generating disparity maps in approximately 0.5…

计算机视觉与模式识别 · 计算机科学 2025-12-08 Yida Lin , Bing Xue , Mengjie Zhang , Sam Schofield , Richard Green

This work introduces a reduced order modeling (ROM) framework for the solution of parameterized second-order linear elliptic partial differential equations formulated on unfitted geometries. The goal is to construct efficient…

数值分析 · 数学 2025-10-14 Margarita Chasapi , Pablo Antolin , Annalisa Buffa

We propose a model order reduction technique integrating the Shifted Boundary Method (SBM) with a POD-Galerkin strategy. This approach allows to treat more complex parametrized domains in an efficient and straightforward way. The impact of…

Currently, the area of geometric modeling and the construction of 3D models based on point clouds from laser sensors is actively developing. One of the basic tasks of geometric modeling is the reconstruction of a surface from a cloud of…

分布式、并行与集群计算 · 计算机科学 2024-01-09 Marat Ildarovich Khabibulin

This paper describes new techniques for learning atlas-like representations of 3D surfaces, i.e. homeomorphic transformations from a 2D domain to surfaces. Compared to prior work, we propose two major contributions. First, instead of…

计算几何 · 计算机科学 2022-06-14 Theo Deprelle , Thibault Groueix , Noam Aigerman , Vladimir G. Kim , Mathieu Aubry

Motivated by applications in architecture and design, we present a novel method for increasing the developability of a B-spline surface. We use the property that the Gauss image of a developable surface is 1-dimensional and can be locally…

图形学 · 计算机科学 2019-02-27 Konstantinos Gavriil , Alexander Schiftner , Helmut Pottmann
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