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We here introduce an automatic Digital Terrain Model (DTM) extraction method. The proposed sparsity-driven DTM extractor (SD-DTM) takes a high-resolution Digital Surface Model (DSM) as an input and constructs a high-resolution DTM using the…

计算机视觉与模式识别 · 计算机科学 2020-12-17 Fatih Nar , Erdal Yilmaz , Gustau Camps-Valls

Existing image deraining methods typically rely on single-input, single-output, and single-scale architectures, which overlook the joint multi-scale information between external and internal features. Furthermore, single-domain…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Shun Zou , Yi Zou , Mingya Zhang , Shipeng Luo , Guangwei Gao , Guojun Qi

State-of-the-art stereo matching networks have difficulties in generalizing to new unseen environments due to significant domain differences, such as color, illumination, contrast, and texture. In this paper, we aim at designing a…

计算机视觉与模式识别 · 计算机科学 2019-12-02 Feihu Zhang , Xiaojuan Qi , Ruigang Yang , Victor Prisacariu , Benjamin Wah , Philip Torr

Accurate estimation of subsurface material properties, such as soil moisture, is critical for wildfire risk assessment and precision agriculture. Ground-penetrating radar (GPR) is a non-destructive geophysical technique widely used to…

信号处理 · 电气工程与系统科学 2025-12-22 Zixin Wang , Ishfaq Aziz , Mohamad Alipour

Federated learning (FL) has emerged as a prominent machine learning paradigm in edge computing environments, enabling edge devices to collaboratively optimize a global model without sharing their private data. However, existing FL…

In areas such as kernel smoothing and non-parametric regression there is emphasis on smooth interpolation and smooth statistical models. Splines are known to have optimal smoothness properties in one and higher dimensions. It is shown, with…

统计计算 · 统计学 2008-09-29 Ron A. Bates , Hugo Maruri-Aguilar , Henry P. Wynn

Image-guided depth completion aims to generate dense depth maps with sparse depth measurements and corresponding RGB images. Currently, spatial propagation networks (SPNs) are the most popular affinity-based methods in depth completion, but…

计算机视觉与模式识别 · 计算机科学 2022-02-22 Yuankai Lin , Tao Cheng , Qi Zhong , Wending Zhou , Hua Yang

Spatial data collected worldwide at a huge number of locations are frequently used in environmental and climate studies. Spatial modelling for this type of data presents both methodological and computational challenges. In this work we…

统计方法学 · 统计学 2017-11-16 Fedele Greco , Massimo Ventrucci , Elisa Castelli

Rigorous computer simulations of propagating electromagnetic fields have become an important tool for optical metrology and design of nanostructured optical components. A vectorial finite element method (FEM) is a good choice for an…

光学 · 物理学 2009-05-28 L. Zschiedrich , S. Burger , A. Schädle , F. Schmidt

Locally refined spline surfaces (LRB) is a representation well suited for scattered data approximation. When a data set has local details in some areas and is largely smooth in other, LR B-splines allow the spatial distribution of degrees…

数值分析 · 数学 2020-12-16 Vibeke Skytt , Tor Dokken

Decision Support Systems for pavement and maintenance strategies have traditionally been designed as silos led to local optimum systems. Moreover, since big data usage didn't exist as result of Industry 4.0 as of today, DSSs were not…

人工智能 · 计算机科学 2023-06-06 Shahrzad Pour , Amir Masoumi , Niels Skov Dujardin

The discovery of correlated phases in twisted moir\'e superlattices accelerated the search for low-dimensional materials with exotic properties. A promising approach uses engineered substrates to strain the material. However, designing…

介观与纳米尺度物理 · 物理学 2023-08-25 Md Tareq Mahmud , Dawei Zhai , Nancy Sandler

Time series forecasting, which aims to predict future values based on historical data, has garnered significant attention due to its broad range of applications. However, real-world time series often exhibit complex non-uniform distribution…

机器学习 · 计算机科学 2025-10-02 Yanru Sun , Zongxia Xie , Emadeldeen Eldele , Dongyue Chen , Qinghua Hu , Min Wu

Matched layers are commonly used in numerical simulations of wave propagation to model (semi-)infinite domains. Attenuation functions describe the damping in layers, and provide a matching of the wave impedance at the interface between the…

计算工程、金融与科学 · 计算机科学 2016-02-01 Steven Vandekerckhove , Garth N. Wells , Herbert De Gersem , Koen Van Den Abeele

The paper studies a finite element method for computing transport and diffusion along evolving surfaces. The method does not require a parametrization of a surface or an extension of a PDE from a surface into a bulk outer domain. The…

数值分析 · 数学 2014-03-04 Joerg Grande , Maxim Olshanskii , Arnold Reusken

Isogeometric Analysis is a variant of the finite element method, where spline functions are used for the representation of both the geometry and the solution. Splines, particularly those with higher degree, achieve their full approximation…

数值分析 · 数学 2025-10-10 Stefan Takacs , Stefan Tyoler

Isogeometric analysis is a recently developed framework based on finite element analysis, where the simple building blocks in geometry and solution space are replaced by more complex and geometrically-oriented compounds. Box splines are an…

数值分析 · 数学 2019-09-26 Tadej Kanduc , Carlotta Giannelli , Francesca Pelosi , Hendrik Speleers

This paper proposes a new transmission strategy for the multiuser massive multiple-input multiple-output (MIMO) systems, including uplink/downlink channel estimation and user scheduling for data transmission. A discrete Fourier transform…

信息论 · 计算机科学 2016-01-12 Hongxiang Xie , Feifei Gao , Shun Zhang , Shi Jin

Recently, flow-based methods have achieved promising success in video frame interpolation. However, electron microscopic (EM) images suffer from unstable image quality, low PSNR, and disorderly deformation. Existing flow-based interpolation…

计算机视觉与模式识别 · 计算机科学 2021-01-19 Zejin Wang , Guodong Sun , Lina Zhang , Guoqing Li , Hua Han

Fitted finite element methods are constructed for a singularly perturbed convection-diffusion problem in two space dimensions. Exponential splines as basis functions are combined with Shishkin meshes to obtain a stable parameter-uniform…

数值分析 · 数学 2023-10-03 Alan F. Hegarty , Eugene O'Riordan