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Low concentrations aerosols quantification is rather challenging for LIDAR instruments due to eye-safety restrictions so high energy pulses cannot be utilized to improve the sensitivity. Highly sensitive but eye-save LIDAR has been…

Atmospheric and Oceanic Physics · Physics 2023-11-14 S. M. Pershin , V. A. Zavozin , M. Ya. Grishin. , V. N. Lednev , G. A. Boldin , L. B. Bezrukov , A. K. Mezhokh , V. V. Sinev

Accurate visual localization in dense urban environments poses a fundamental task in photogrammetry, geospatial information science, and robotics. While imagery is a low-cost and widely accessible sensing modality, its effectiveness on…

Robotics · Computer Science 2025-09-10 Yandi Yang , Jianping Li , Youqi Liao , Yuhao Li , Yizhe Zhang , Zhen Dong , Bisheng Yang , Naser El-Sheimy

This study presents an innovative approach to creating a dynamic, AI based emission inventory system for use with the Weather Research and Forecasting model coupled with Chemistry (WRF Chem), designed to simulate vehicular and other…

Computer Vision and Pattern Recognition · Computer Science 2024-10-29 Shubham Ghosal , Manmeet Singh , Sachin Ghude , Harsh Kamath , Vaisakh SB , Subodh Wasekar , Anoop Mahajan , Hassan Dashtian , Zong-Liang Yang , Michael Young , Dev Niyogi

X-ray observations with the ROSAT High Resolution Imager (HRI) often have spatial smearing on the order of 10 arcsec (Morse 1994). This degradation of the intrinsic resolution of the instrument (5 arcsec) can be attributed to errors in the…

Astrophysics · Physics 2009-10-31 D. E. Harris , J. D. Silverman , G. Hasinger , I. Lehmann

Aerial object detection presents challenges from small object sizes, high density clustering, and image quality degradation from distance and motion blur. These factors create an information bottleneck where limited pixel representation…

Computer Vision and Pattern Recognition · Computer Science 2025-07-10 Ragib Amin Nihal , Benjamin Yen , Takeshi Ashizawa , Katsutoshi Itoyama , Kazuhiro Nakadai

We show that automated person detection under occlusion conditions can be significantly improved by combining multi-perspective images before classification. Here, we employed image integration by Airborne Optical Sectioning (AOS)---a…

Machine Learning · Computer Science 2020-12-10 David C. Schedl , Indrajit Kurmi , Oliver Bimber

We optimize the jet mixing using large eddy simulations (LES) at a Reynolds number of $3000$. Key methodological enablers consist of Bayesian optimization, a surrogate model enhanced by deep learning, and persistent data topology for…

The MIRO instrument's remote sensing capability is integral in constraining water density, temperature and velocity fields in the coma of 67P/Churyumov-Gersimenko. Our aim is to quantify the contribution to the water density from all facets…

Earth and Planetary Astrophysics · Physics 2019-03-05 L. Rezac , Y. Zhao , P. Hartogh , J. Ji , D. Marshall , X. Shi

Although Bayesian density estimation using discrete mixtures has good performance in modest dimensions, there is a lack of statistical and computational scalability to high-dimensional multivariate cases. To combat the curse of…

Methodology · Statistics 2014-10-29 Ye Wang , Antonio Canale , David Dunson

We explore the task of geometric reconstruction of images captured from a mixture of ground and aerial views. Current state-of-the-art learning-based approaches fail to handle the extreme viewpoint variation between aerial-ground image…

Computer Vision and Pattern Recognition · Computer Science 2025-04-18 Khiem Vuong , Anurag Ghosh , Deva Ramanan , Srinivasa Narasimhan , Shubham Tulsiani

Purpose: A fundamental problem in designing safe machine learning systems is identifying when samples presented to a deployed model differ from those observed at training time. Detecting so-called out-of-distribution (OoD) samples is…

Computer Vision and Pattern Recognition · Computer Science 2023-05-04 Alain Jungo , Lars Doorenbos , Tommaso Da Col , Maarten Beelen , Martin Zinkernagel , Pablo Márquez-Neila , Raphael Sznitman

Detecting anomalies in multivariate time series(MTS) data plays an important role in many domains. The abnormal values could indicate events, medical abnormalities,cyber-attacks, or faulty devices which if left undetected could lead to…

Machine Learning · Computer Science 2023-01-31 Usman Anjum , Samuel Lin , Justin Zhan

Organic aerosol (OA) is a key component to total submicron particulate matter (PM1), and comprehensive knowledge of OA sources across Europe is crucial to mitigate PM1 levels. Europe has a well-established air quality research…

For the past two decades, there have been significant efforts to develop methods for object detection in Remote Sensing (RS) images. In most cases, the datasets for small object detection in remote sensing images are inadequate. Many…

Computer Vision and Pattern Recognition · Computer Science 2022-03-08 Yi Wang , Syed Muhammad Arsalan Bashir , Mahrukh Khan , Qudrat Ullah , Rui Wang , Yilin Song , Zhe Guo , Yilong Niu

Synthetic aperture radar (SAR) tomography (TomoSAR) retrieves three-dimensional (3-D) information from multiple SAR images, effectively addresses the layover problem, and has become pivotal in urban mapping. Unmanned aerial vehicle (UAV)…

Signal Processing · Electrical Eng. & Systems 2024-02-05 Silin Gao , Wenlong Wang , Muhan Wang , Zhe Zhang , Zai Yang , Xiaolan Qiu , Bingchen Zhang , Yirong Wu

The detection of small objects in aerial images is a fundamental task in the field of computer vision. Moving objects in aerial photography have problems such as different shapes and sizes, dense overlap, occlusion by the background, and…

Computer Vision and Pattern Recognition · Computer Science 2024-06-25 Haodong Li , Haicheng Qu

An improved method of remote optical absorption spectroscopy and hyperspectral optical absorption imaging is described which takes advantage of the photoacoustic remote sensing detection architecture. A wide range of photoacoustic…

Biological Physics · Physics 2021-08-04 Kevan Bell , Lyazzat Mukhangaliyeva , Layla Khalili , Parsin Haji Reza

Operational weather prediction at kilometer scales remains computationally prohibitive for traditional numerical weather prediction (NWP) models, limiting forecast access for applications in energy, agriculture, and disaster management that…

Downscaling (DS) of meteorological variables involves obtaining high-resolution states from low-resolution meteorological fields and is an important task in weather forecasting. Previous methods based on deep learning treat downscaling as a…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Zili Liu , Hao Chen , Lei Bai , Wenyuan Li , Keyan Chen , Zhengyi Wang , Wanli Ouyang , Zhengxia Zou , Zhenwei Shi

Geometrical shape of airfoils, together with the corresponding flight conditions, are crucial factors for aerodynamic performances prediction. The obtained airfoils geometrical features in most existing approaches (e.g., geometrical…

Machine Learning · Computer Science 2022-06-27 Yu Xiang , Guangbo Zhang , Liwei Hu , Jun Zhang , Wenyong Wang
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