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Nighttime camera-based depth estimation is a highly challenging task, especially for autonomous driving applications, where accurate depth perception is essential for ensuring safe navigation. Models trained on daytime data often fail in…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Simon de Moreau , Yasser Almehio , Andrei Bursuc , Hafid El-Idrissi , Bogdan Stanciulescu , Fabien Moutarde

Machine learning-based weather forecasting models now surpass state-of-the-art numerical weather prediction systems, but training and operating these models at high spatial resolution remains computationally expensive. We present a modular…

Machine Learning · Computer Science 2026-04-02 Aymeric Delefosse , Anastase Charantonis , Dominique Béréziat

The visible light reflectance data from geostationary satellites is crucial for meteorological observations and plays an important role in weather monitoring and forecasting. However, due to the lack of visible light at night, it is…

Computer Vision and Pattern Recognition · Computer Science 2025-07-14 Tingting Zhou , Feng Zhang , Haoyang Fu , Baoxiang Pan , Renhe Zhang , Feng Lu , Zhixin Yang

This study addresses the challenge of performing visual localization in demanding conditions such as night-time scenarios, adverse weather, and seasonal changes. While many prior studies have focused on improving image-matching performance…

Computer Vision and Pattern Recognition · Computer Science 2024-03-21 Khang Truong Giang , Soohwan Song , Sungho Jo

Time-resolved illumination provides rich spatio-temporal information for applications such as accurate depth sensing or hidden geometry reconstruction, becoming a useful asset for prototyping and as input for data-driven approaches.…

Signal Processing · Electrical Eng. & Systems 2023-08-31 Diego Royo , Zesheng Huang , Yun Liang , Boyan Song , Adolfo Muñoz , Diego Gutierrez , Julio Marco

Nighttime monitoring of the aerosol content of the lower atmosphere is a challenging task, because appropriate reference natural light sources are lacking. Here we show that the anthropogenic night sky brightness due to city lights can be…

Instrumentation and Methods for Astrophysics · Physics 2020-11-18 Miroslav Kocifaj , Salvador Bará

In addition to low light, night images suffer degradation from light effects (e.g., glare, floodlight, etc). However, existing nighttime visibility enhancement methods generally focus on low-light regions, which neglects, or even amplifies…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Shufan Pei , Junhong Lin , Wenxi Liu , Tiesong Zhao , Chia-Wen Lin

Recent advances in deep-learning based methods for image matching have demonstrated their superiority over traditional algorithms, enabling correspondence estimation in challenging scenes with significant differences in viewing angles,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Rahul Deshmukh , Avinash Kak

A key processing step in ground-based astronomy involves combining multiple noisy and blurry exposures to produce an image of the night sky with an improved signal-to-noise ratio. Typically, this is achieved via image coaddition, and can be…

Instrumentation and Methods for Astrophysics · Physics 2025-09-15 Yashil Sukurdeep , Tamás Budavári , Andrew J. Connolly , Fausto Navarro

The goal of this work is to perform 3D reconstruction and novel view synthesis from data captured by scanning platforms commonly deployed for world mapping in urban outdoor environments (e.g., Street View). Given a sequence of posed RGB…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Konstantinos Rematas , Andrew Liu , Pratul P. Srinivasan , Jonathan T. Barron , Andrea Tagliasacchi , Thomas Funkhouser , Vittorio Ferrari

In the past years modern mathematical methods for image analysis have led to a revolution in many fields, from computer vision to scientific imaging. However, some recently developed image processing techniques successfully exploited by…

Instrumentation and Methods for Astrophysics · Physics 2015-01-19 Marco Castellano , Daniele Ottaviani , Adriano Fontana , Emiliano Merlin , Stefano Pilo , Maurizio Falcone

Advances in high resolution remote sensing image analysis are currently hampered by the difficulty of gathering enough annotated data for training deep learning methods, giving rise to a variety of small datasets and associated…

Computer Vision and Pattern Recognition · Computer Science 2023-03-08 Dimitri Gominski , Valérie Gouet-Brunet , Liming Chen

The Earth observation satellites have been monitoring the earth's surface for a long time, and the images taken by the satellites contain large amounts of valuable data. However, it is extremely hard work to manually analyze such huge data.…

Computer Vision and Pattern Recognition · Computer Science 2017-07-31 Kazuki Uehara , Hidenori Sakanashi , Hirokazu Nosato , Masahiro Murakawa , Hiroki Miyamoto , Ryosuke Nakamura

Structured light (SL) 3D reconstruction captures the precise surface shape of objects, providing high-accuracy 3D data essential for industrial inspection and cultural heritage digitization. However, existing methods suffer from two key…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Tinglei Wan , Tonghua Su , Zhongjie Wang

Super-resolution is aimed at reconstructing high-resolution images from low-resolution observations. State-of-the-art approaches underpinned with deep learning allow for obtaining outstanding results, generating images of high perceptual…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Maciej Ziaja , Pawel Kowaleczko , Daniel Kostrzewa , Nicolas Longépé , Michal Kawulok

Advances in portability and low cost of plenoptic cameras have revived interest in light field imaging. Light-field imaging has evolved into a technology that enables us to capture richer visual information. This high-dimensional…

Image and Video Processing · Electrical Eng. & Systems 2025-10-10 Sumit Sharma

Characterizing urban environments with broad coverages and high precision is more important than ever for achieving the UN's Sustainable Development Goals (SDGs) as half of the world's populations are living in cities. Urban building height…

From the nature of dark matter to the rate of expansion of our Universe, observations of distant galaxies distorted through strong gravitational lensing have the potential to answer some of the major open questions in astrophysics. Modeling…

Cosmology and Nongalactic Astrophysics · Physics 2022-10-18 Siddharth Mishra-Sharma , Ge Yang

Super-resolution (SR) techniques make use of subpixel shifts between frames in an image sequence to yield higher-resolution images. We propose an original observation model devoted to the case of non isometric inter-frame motion as…

Applications · Statistics 2015-05-14 G. Rochefort , F. Champagnat , G. Le Besnerais , J. -F. Giovannelli

Cities play an important role in achieving sustainable development goals (SDGs) to promote economic growth and meet social needs. Especially satellite imagery is a potential data source for studying sustainable urban development. However, a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-02 Yanxin Xi , Yu Liu , Tong Li , Jintao Ding , Yunke Zhang , Sasu Tarkoma , Yong Li , Pan Hui