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Due to the latest advances in technology, telescopes with significant sky coverage will produce millions of astronomical alerts per night that must be classified both rapidly and automatically. Currently, classification consists of…

Instrumentation and Methods for Astrophysics · Physics 2022-08-17 Germán García-Jara , Pavlos Protopapas , Pablo A. Estévez

Few-shot recognition in synthetic aperture radar (SAR) imagery remains a critical bottleneck for real-world applications due to extreme data scarcity. A promising strategy involves synthesizing a large dataset with a generative adversarial…

Computer Vision and Pattern Recognition · Computer Science 2026-01-23 Yikui Zhai , Shikuang Liu , Wenlve Zhou , Hongsheng Zhang , Zhiheng Zhou , Xiaolin Tian , C. L. Philip Chen

Synthetic Aperture Radar (SAR) provides all-weather, high-resolution imaging capabilities, but its unique imaging mechanism often requires expert interpretation, limiting its widespread applicability. Translating SAR images into more easily…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Xinyu Bai , Feng Xu

In this paper, we present the optical image simulation from a synthetic aperture radar (SAR) data using deep learning based methods. Two models, i.e., optical image simulation directly from the SAR data and from multi-temporal SARoptical…

Computer Vision and Pattern Recognition · Computer Science 2018-07-27 Wei He , Naoto Yokoya

High-resolution (HR) precipitation prediction is essential for reducing damage from stationary and localized heavy rainfall; however, HR precipitation forecasts using process-driven numerical weather prediction models remains challenging.…

Machine Learning · Computer Science 2026-05-19 Kenta Shiraishi , Yuka Muto , Atsushi Okazaki , Shunji Kotsuki

This letter proposes a simple method of transferring rain structures of a given exemplar rain image into a target image. Given the exemplar rain image and its corresponding masked rain image, rain patches including rain structures are…

Computer Vision and Pattern Recognition · Computer Science 2016-10-04 Chang-Hwan Son , Xiao-Ping Zhang

The Rayleigh regression model was recently proposed for modeling amplitude values of synthetic aperture radar (SAR) image pixels. However, inferences from such model are based on the maximum likelihood estimators, which can be biased for…

Methodology · Statistics 2022-08-09 B. G. Palm , F. M. Bayer , R. J. Cintra

This paper introduces a new Bayesian approach to the inverse problem of passive microwave rainfall retrieval. The proposed methodology relies on a regularization technique and makes use of two joint dictionaries of coincidental rainfall…

Data Analysis, Statistics and Probability · Physics 2015-01-07 Ardeshir Mohammad Ebtehaj , Rafael Luis Bras , Efi Foufoula-Georgiou

To augment training data for machine learning models in Ground Penetrating Radar (GPR) data classification and identification, this thesis focuses on the generation of realistic GPR data using Generative Adversarial Networks. An innovative…

Image and Video Processing · Electrical Eng. & Systems 2019-06-05 William Rice

A generative diffusion model is used to produce probabilistic ensembles of precipitation intensity maps at the 1-hour 5-km resolution. The generation is conditioned on infrared and microwave radiometric measurements from the GOES and DMSP…

Atmospheric and Oceanic Physics · Physics 2024-09-26 Clement Guilloteau , Gavin Kerrigan , Kai Nelson , Giosue Migliorini , Padhraic Smyth , Runze Li , Efi Foufoula-Georgiou

Raindrops adhered to a glass window or camera lens can severely hamper the visibility of a background scene and degrade an image considerably. In this paper, we address the problem by visually removing raindrops, and thus transforming a…

Computer Vision and Pattern Recognition · Computer Science 2018-05-08 Rui Qian , Robby T. Tan , Wenhan Yang , Jiajun Su , Jiaying Liu

In recent years, deep learning based methods have made significant progress in rain-removing. However, the existing methods usually do not have good generalization ability, which leads to the fact that almost all of existing methods have a…

Computer Vision and Pattern Recognition · Computer Science 2019-10-10 Yinglong Wang , Haokui Zhang , Yu Liu , Qinfeng Shi , Bing Zeng

We presented a method for improving computer vision tasks on images affected by adverse weather conditions, including distortions caused by adherent raindrops. Overcoming the challenge of applying computer vision to images affected by…

Computer Vision and Pattern Recognition · Computer Science 2022-11-11 Nuriel Shalom Mor

Satellite remote sensing presents a cost-effective solution for synoptic flood monitoring, and satellite-derived flood maps provide a computationally efficient alternative to numerical flood inundation models traditionally used. While…

Geophysics · Physics 2022-09-05 Antara Dasgupta , Lasse Hybbeneth , Björn Waske

Automatic Target Recognition (ATR) algorithms classify a given Synthetic Aperture Radar (SAR) image into one of the known target classes using a set of training images available for each class. Recently, learning methods have shown to…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Tushar Agarwal , Nithin Sugavanam , Emre Ertin

Airports have an important role in both military and civilian domains. The synthetic aperture radar (SAR) based airport detection has received increasing attention in recent years. However, due to the high cost of SAR imaging and annotation…

Computer Vision and Pattern Recognition · Computer Science 2022-04-08 Daochang Wang , Fan Zhang , Fei Ma , Wei Hu , Yu Tang , Yongsheng Zhou

Deep learning models have achieved remarkable progress in precipitation prediction. However, they still face significant challenges in accurately capturing spatial details of radar images, particularly in regions of high precipitation…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Li Chaorong , Ling Xudong , Yang Qiang , Qin Fengqing , Huang Yuanyuan

Nighttime satellite imagery has been applied in a wide range of fields. However, our limited understanding of how observed light intensity is formed and whether it can be simulated greatly hinders its further application. This study…

Computer Vision and Pattern Recognition · Computer Science 2020-01-17 Xiao Huang , Dong Xu , Zhenlong Li , Cuizhen Wang

Human civilization has an increasingly powerful influence on the earth system. Affected by climate change and land-use change, natural disasters such as flooding have been increasing in recent years. Earth observations are an invaluable…

Computer Vision and Pattern Recognition · Computer Science 2022-12-08 Ritu Yadav , Andrea Nascetti , Hossein Azizpour , Yifang Ban

Accurately predicting short-term precipitation is critical for weather-sensitive applications such as disaster management, aviation, and urban planning. Traditional numerical weather prediction can be computationally intensive at high…

Machine Learning · Computer Science 2025-12-01 Sumit Mamtani , Maitreya Sonawane