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The analysis of clouds in the earth's atmosphere is important for a variety of applications, viz. weather reporting, climate forecasting, and solar energy generation. In this paper, we focus our attention on the impact of cloud on the total…

大气与海洋物理 · 物理学 2017-03-17 Soumyabrata Dev , Shilpa Manandhar , Feng Yuan , Yee Hui Lee , Stefan Winkler

Spatio-temporal forecasting is challenging attributing to the high nonlinearity in temporal dynamics as well as complex location-characterized patterns in spatial domains, especially in fields like weather forecasting. Graph convolutions…

机器学习 · 计算机科学 2021-12-14 Haitao Lin , Zhangyang Gao , Yongjie Xu , Lirong Wu , Ling Li , Stan. Z. Li

In this paper, we present a Computer Vision (CV) based tracking and fusion algorithm, dedicated to a 3D printed gimbal system on drones operating in nature. The whole gimbal system can stabilize the camera orientation robustly in a…

机器人学 · 计算机科学 2024-01-09 Xueyang Kang , Ariel Herrera , Henry Lema , Esteban Valencia , Patrick Vandewalle

Observational studies require adjustment for confounding factors that are correlated with both the treatment and outcome. In the setting where the observed variables are tabular quantities such as average income in a neighborhood, tools…

机器学习 · 统计学 2023-01-31 Connor T. Jerzak , Fredrik Johansson , Adel Daoud

The increasing deployment of small drones as tools of conflict and disruption has amplified their threat, highlighting the urgent need for effective anti-drone measures. However, the compact size of most drones presents a significant…

计算机视觉与模式识别 · 计算机科学 2024-12-24 Hanfang Liang , Jinming Hu , Xiaohuan Ling , Bing Wang

Realistic aircraft trajectory models are useful in the design and validation of air traffic management (ATM) systems. Models of aircraft operated under instrument flight rules (IFR) require capturing the variability inherent in how aircraft…

机器学习 · 计算机科学 2025-05-29 Soyeon Jung , Amelia Hardy , Mykel J. Kochenderfer

Atmospheric turbulence, a common phenomenon in daily life, is primarily caused by the uneven heating of the Earth's surface. This phenomenon results in distorted and blurred acquired images or videos and can significantly impact downstream…

计算机视觉与模式识别 · 计算机科学 2024-02-13 Xijun Wang , Santiago López-Tapia , Aggelos K. Katsaggelos

Due to implicitly introduced periodic shifting of limited searching area, visual object tracking using correlation filters often has to confront undesired boundary effect. As boundary effect severely degrade the quality of object model, it…

计算机视觉与模式识别 · 计算机科学 2019-08-13 Changhong Fu , Ziyuan Huang , Yiming Li , Ran Duan , Peng Lu

An inherent fragility of quadrotor systems stems from model inaccuracies and external disturbances. These factors hinder performance and compromise the stability of the system, making precise control challenging. Existing model-based…

机器人学 · 计算机科学 2025-06-25 Avirup Das , Rishabh Dev Yadav , Sihao Sun , Mingfei Sun , Samuel Kaski , Wei Pan

Generating ground-level images from aerial views is a challenging task due to extreme viewpoint disparity, occlusions, and a limited field of view. We introduce Top2Ground, a novel diffusion-based method that directly generates…

计算机视觉与模式识别 · 计算机科学 2025-11-12 Jae Joong Lee , Bedrich Benes

In-camera light scattering is a typical form of non-systematic interference in indirect Time-of-Flight (iToF) cameras, primarily caused by multiple reflections and optical path variations within the camera body. This effect can…

光学 · 物理学 2025-11-05 Yansong Du , Jingtong Yao , Yuting Zhou , Feiyu Jiao , Zhaoxiang Jiang , Xun Guan

Severity of warming predicted by climate models depends on their Transient Climate Response (TCR). Inter-model spread of TCR has persisted at ~100% of its mean for decades. Existing observational constraints of TCR are based on observed…

大气与海洋物理 · 物理学 2023-12-25 King-Fai Li , Ka-Kit Tung

The presence of clouds between an airshower and a space-based detector can dramatically alter the measured signal characteristics due to absorption and scattering of the photonic signals. Furthermore, knowledge of the cloud cover in the…

天体物理学 · 物理学 2007-05-23 John Krizmanic , Pierre Sokolsky , Robert Streitmatter

The intermittency of solar power, due to occlusion from cloud cover, is one of the key factors inhibiting its widespread use in both commercial and residential settings. Hence, real-time forecasting of solar irradiance for grid-connected…

计算机视觉与模式识别 · 计算机科学 2024-09-19 Leron Julian , Aswin C. Sankaranarayanan

We present simulations of cumulus convection over land with shortwave radiation computed by a Monte Carlo ray tracer coupled to the flow solver. Ray tracing delivers very realistic in-cloud heating rates and global horizontal irradiance…

大气与海洋物理 · 物理学 2023-01-04 Menno A. Veerman , Bart J. H. van Stratum , Chiel C. van Heerwaarden

A trade-off between speed and information controls our understanding of astronomical objects. Fast-to-acquire photometric observations provide global properties, while costly and time-consuming spectroscopic measurements enable a better…

天体物理仪器与方法 · 物理学 2022-11-11 Lars Doorenbos , Stefano Cavuoti , Giuseppe Longo , Massimo Brescia , Raphael Sznitman , Pablo Márquez-Neila

A longstanding goal in computer vision is to model motions from videos, while the representations behind motions, i.e. the invisible physical interactions that cause objects to deform and move, remain largely unexplored. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2025-12-02 Zhiyuan Gao , Jiageng Mao , Hong-Xing Yu , Haozhe Lou , Emily Yue-Ting Jia , Jernej Barbic , Jiajun Wu , Yue Wang

The calibration of weather radar for detecting meteorological phenomena has advanced rapidly, aiming to enhance accuracy. Utilizing an unmanned aerial vehicle (UAV) equipped with a suspended metal sphere introduces an efficient calibration…

信号处理 · 电气工程与系统科学 2024-07-09 Jiabiao Zhao , Da Li , Jiayuan Cui , Houjun Sun , Jianjun Ma

Correlation Filters (CFs) have recently demonstrated excellent performance in terms of rapidly tracking objects under challenging photometric and geometric variations. The strength of the approach comes from its ability to efficiently learn…

计算机视觉与模式识别 · 计算机科学 2017-03-23 Hamed Kiani Galoogahi , Ashton Fagg , Simon Lucey

MMitigating contrail-induced warming by re-routing flights around contrail-forming regions requires accurate and stable forecasts of the state of the upper troposphere and lower stratosphere. Forecast stability (i.e., consistency between…