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We present a transfer-learning generative downscaling framework to reconstruct fine resolution satellite images from coarse scale inputs. Our approach combines a lightweight U-Net transfer encoder with a diffusion-based generative model.…

Computer Vision and Pattern Recognition · Computer Science 2025-12-08 Yang Xiang , Jingwen Zhong , Yige Yan , Petros Koutrakis , Eric Garshick , Meredith Franklin

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…

Computer Vision and Pattern Recognition · Computer Science 2024-12-12 Rangel Daroya , Luisa Vieira Lucchese , Travis Simmons , Punwath Prum , Tamlin Pavelsky , John Gardner , Colin J. Gleason , Subhransu Maji

Cloud detection is a pivotal satellite image pre-processing step that can be performed both on the ground and on board a satellite to tag useful images. In the latter case, it can help to reduce the amount of data to downlink by pruning the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-26 Bartosz Grabowski , Maciej Ziaja , Michal Kawulok , Nicolas Longépé , Bertrand Le Saux , Jakub Nalepa

This research addresses the growing challenge of artificial satellite trail interference in ground-based astronomical observations by developing an efficient deep learning identification method. With the proliferation of satellite…

Instrumentation and Methods for Astrophysics · Physics 2025-09-05 Hua-Jian Yu , Jia-Lei Zheng , Yuan Fang

Multiresolution deep learning approaches, such as the U-Net architecture, have achieved high performance in classifying and segmenting images. However, these approaches do not provide a latent image representation and cannot be used to…

Image and Video Processing · Electrical Eng. & Systems 2023-08-09 Duy H. Thai , Xiqi Fei , Minh Tri Le , Andreas Züfle , Konrad Wessels

The spatio-temporal graph learning is becoming an increasingly important object of graph study. Many application domains involve highly dynamic graphs where temporal information is crucial, e.g. traffic networks and financial transaction…

Machine Learning · Computer Science 2021-06-16 Bing Yu , Haoteng Yin , Zhanxing Zhu

We introduce Seamless Satellite-image Synthesis (SSS), a novel neural architecture to create scale-and-space continuous satellite textures from cartographic data. While 2D map data is cheap and easily synthesized, accurate satellite imagery…

Computer Vision and Pattern Recognition · Computer Science 2021-11-08 Jialin Zhu , Tom Kelly

Reconstructing high-dimensional spatiotemporal fields from sparse point-sensor measurements is a central challenge in learning parametric PDE dynamics. Existing approaches often struggle to generalize across trajectories and parameter…

Machine Learning · Computer Science 2026-02-05 Yanjie Tong , Peng Chen

Semantic Image Synthesis (SIS) is a subclass of image-to-image translation where a photorealistic image is synthesized from a segmentation mask. SIS has mostly been addressed as a supervised problem. However, state-of-the-art methods depend…

Computer Vision and Pattern Recognition · Computer Science 2021-10-01 George Eskandar , Mohamed Abdelsamad , Karim Armanious , Bin Yang

With the rapid increase in the number of artificial satellites, astronomical imaging is experiencing growing interference. When these satellites reflect sunlight, they produce streak-like artifacts in photometry images. Such satellite…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Xiaohan Chen , Hongrui Gu , Cunshi Wang , Haiyang Mu , Jie Zheng , Junju Du , Jing Ren , Zhou Fan , Jing Li

For satellite images, the presence of clouds presents a problem as clouds obscure more than half to two-thirds of the ground information. This problem causes many issues for reliability in a noise-free environment to communicate data and…

Computer Vision and Pattern Recognition · Computer Science 2022-12-23 Dale Chen-Song , Erfan Khalaji , Vaishali Rani

Intrinsic image decomposition aims at separating an image into its underlying albedo and shading components, isolating the base color from lighting effects to enable downstream applications such as virtual relighting and scene editing.…

Computer Vision and Pattern Recognition · Computer Science 2025-05-28 Hala Djeghim , Nathan Piasco , Luis Roldão , Moussab Bennehar , Dzmitry Tsishkou , Céline Loscos , Désiré Sidibé

All-in-one image restoration aims to handle diverse degradations (e.g., noise, blur, adverse weather) within a unified framework, yet existing methods increasingly rely on complex architectures (e.g., Mixture-of-Experts, diffusion models)…

Computer Vision and Pattern Recognition · Computer Science 2025-12-12 Wenlong Jiao , Heyang Lee , Ping Wang , Pengfei Zhu , Qinghua Hu , Dongwei Ren

Frequent cloud cover severely limits the usability of Sentinel-2 (S2) optical time series for Earth surface monitoring. Sentinel-1 (S1) SAR provides all-weather complementary observations, but practical S1/S2 fusion remains difficult…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Forouzan Fallah , Chia Yu Hsu , Wenwen Li , Anna Liljedahl , Yezhou Yang

Satellite Image Time Series (SITS) of the Earth's surface provide detailed land cover maps, with their quality in the spatial and temporal dimensions consistently improving. These image time series are integral for developing systems that…

Computer Vision and Pattern Recognition · Computer Science 2023-04-21 James Brock , Zahraa S. Abdallah

We present a deep learning model with temporal memory to detect clouds in image time series acquired by the Seviri imager mounted on the Meteosat Second Generation (MSG) satellite. The model provides pixel-level cloud maps with related…

Atmospheric and Oceanic Physics · Physics 2020-12-21 Devis Tuia , Benjamin Kellenberger , Adrian Pérez-Suay , Gustau Camps-Valls

Time series anomaly detection aims to identify unusual patterns in data or deviations from systems' expected behavior. The reconstruction-based methods are the mainstream in this task, which learn point-wise representation via unsupervised…

Machine Learning · Computer Science 2025-05-16 Mengxuan Li , Ke Liu , Hongyang Chen , Jiajun Bu , Hongwei Wang , Haishuai Wang

Satellite imaging generally presents a trade-off between the frequency of acquisitions and the spatial resolution of the images. Super-resolution is often advanced as a way to get the best of both worlds. In this work, we investigate…

Computer Vision and Pattern Recognition · Computer Science 2024-04-26 Aimi Okabayashi , Nicolas Audebert , Simon Donike , Charlotte Pelletier

Cloud detection is a pivotal satellite image pre-processing step that can be performed both on the ground and on board a satellite to tag useful images. In the latter case, it can reduce the amount of data to downlink by pruning the cloudy…

Computer Vision and Pattern Recognition · Computer Science 2023-06-19 Bartosz Grabowski , Maciej Ziaja , Michal Kawulok , Piotr Bosowski , Nicolas Longépé , Bertrand Le Saux , Jakub Nalepa

In recent years, analysis of remote sensing data has benefited immensely from borrowing techniques from the broader field of computer vision, such as the use of shared models pre-trained on large and diverse datasets. However, satellite…

Computer Vision and Pattern Recognition · Computer Science 2024-10-02 Kartik Jindgar , Grace W. Lindsay