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The evaluation of modelled or satellite-derived soil moisture (SM) estimates is usually dependent on comparisons against in-situ SM measurements. However, the inherent mismatch in spatial support (i.e., scale) necessitates a cautious…

机器学习 · 计算机科学 2024-04-09 Yi Yu , Brendan P. Malone , Luigi J. Renzullo

Recent advancements in spaceborne GNSS missions have produced extensive global datasets, providing a robust basis for deep learning-based significant wave height (SWH) retrieval. While existing deep learning models predominantly utilize…

机器学习 · 计算机科学 2025-07-08 Chong Zhang , Xichao Liu , Yibing Zhan , Dapeng Tao , Jun Ni , Jinwei Bu

The sea surface height budget, obtained by integrating hydrostatic balance over the water column, relates sea surface height variations to variations of the seafloor pressure, density in the water column, and atmospheric surface pressure.…

大气与海洋物理 · 物理学 2025-08-25 Jörn Callies , Charly de Marez , Jinbo Wang , Bruce Haines

Effective reef monitoring requires the quantification of coral growth via accurate volumetric and surface area estimates, which is a challenging task due to the complex morphology of corals. We propose a novel, lightweight, and scalable…

计算机视觉与模式识别 · 计算机科学 2026-01-23 Diego Eustachio Farchione , Ramzi Idoughi , Peter Wonka

Object completion networks typically produce static Signed Distance Fields (SDFs) that faithfully reconstruct geometry but cannot be rescaled or deformed without introducing structural distortions. This limitation restricts their use in…

计算机视觉与模式识别 · 计算机科学 2026-02-16 Jelle Vermandere , Maarten Bassier , Maarten Vergauwen

High-resolution mapping of canopy height is essential for forest management and biodiversity monitoring. Although recent studies have led to the advent of deep learning methods using satellite imagery to predict height maps, these…

A numerical method based on smoothed particle hydrodynamics with adaptive spatial resolution (SPH-ASR) was developed for simulating free surface flows. This method can reduce the computational demands while maintaining the numerical…

计算物理 · 物理学 2021-07-28 Xiufeng Yang , Song-Charng Kong , Moubin Liu , Qingquan Liu

Mesoscale eddies play a significant role in marine energy transport, marine biological environment and marine climate. Due to their huge impact on the ocean, mesoscale eddy detection has become a hot research area in recent years.…

计算机视觉与模式识别 · 计算机科学 2019-10-01 Zhenlin Fan , Guoqiang Zhong

We investigate the cross-calibration of the Hinode/SOT-SP and SDO/HMI instrument meta-data, specifically the correspondence of the scaling and pointing information. Accurate calibration of these datasets gives the correspondence needed by…

Mobile ground robots require perceiving and understanding their surrounding support surface to move around autonomously and safely. The support surface is commonly estimated based on exteroceptive depth measurements, e.g., from LiDARs.…

机器人学 · 计算机科学 2023-05-16 Anqiao Li , Chenyu Yang , Jonas Frey , Joonho Lee , Cesar Cadena , Marco Hutter

This letter adopts long short-term memory(LSTM) to predict sea surface temperature(SST), which is the first attempt, to our knowledge, to use recurrent neural network to solve the problem of SST prediction, and to make one week and one…

计算机视觉与模式识别 · 计算机科学 2017-11-22 Qin Zhang , Hui Wang , Junyu Dong , Guoqiang Zhong , Xin Sun

Many remote sensing applications employ masking of pixels in satellite imagery for subsequent measurements. For example, estimating water quality variables, such as Suspended Sediment Concentration (SSC) requires isolating pixels depicting…

计算机视觉与模式识别 · 计算机科学 2024-12-12 Rangel Daroya , Luisa Vieira Lucchese , Travis Simmons , Punwath Prum , Tamlin Pavelsky , John Gardner , Colin J. Gleason , Subhransu Maji

Near-surface turbulent flows beneath a free surface are reconstructed from sparse measurements of the surface height variation, by a novel neural network algorithm known as the {\em SHallow REcurrent Decoder} (SHRED). The reconstruction of…

流体动力学 · 物理学 2026-03-12 Kristoffer S. Moen , Jørgen R. Aarnes , Simen Å. Ellingsen , J. Nathan Kutz

The forecasting and reconstruction of ocean and atmosphere dynamics from satellite observation time series are key challenges. While model-driven representations remain the classic approaches, data-driven representations become more and…

机器学习 · 统计学 2018-06-04 Said Ouala , Cedric Herzet , Ronan Fablet

Unmanned surface vehicles (USVs) and boats are increasingly important in maritime operations, yet their deployment is limited due to costly sensors and complexity. LiDAR, radar, and depth cameras are either costly, yield sparse point clouds…

计算机视觉与模式识别 · 计算机科学 2025-01-13 Benjamin Kiefer , Yitong Quan , Andreas Zell

The shallow water equations (SWE) are a widely used model for the propagation of surface waves on the oceans. We consider the problem of optimally determining the initial conditions for the one-dimensional SWE in an unbounded domain from a…

流体动力学 · 物理学 2020-03-12 N. K. -R. Kevlahan , R. Khan , B. Protas

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

We propose a novel method called SHS-Net for oriented normal estimation of point clouds by learning signed hyper surfaces, which can accurately predict normals with global consistent orientation from various point clouds. Almost all…

计算机视觉与模式识别 · 计算机科学 2024-07-31 Qing Li , Huifang Feng , Kanle Shi , Yue Gao , Yi Fang , Yu-Shen Liu , Zhizhong Han

Unmanned Aerial Vehicles (UAVs) are crucial in Search and Rescue (SAR) missions due to their ability to monitor vast maritime areas. However, small objects often remain difficult to detect from high altitudes due to low object-to-background…

计算机视觉与模式识别 · 计算机科学 2025-11-26 Sakib Ahmed , Oscar Pizarro

Development of the new methods of surface water observation is crucial in the perspective of increasingly frequent extreme hydrological events related to global warming and increasing demand for water. Orthophotos and digital surface models…

神经与进化计算 · 计算机科学 2022-12-06 Radosław Szostak , Marcin Pietroń , Mirosław Zimnoch , Przemysław Wachniew , Paweł Ćwiąkała , Edyta Puniach