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Deep Neural Networks (DNNs) based Synthetic Aperture Radar (SAR) Automatic Target Recognition (ATR) systems have shown to be highly vulnerable to adversarial perturbations that are deliberately designed yet almost imperceptible but can bias…

Computer Vision and Pattern Recognition · Computer Science 2022-12-07 Bowen Peng , Bo Peng , Jie Zhou , Jianyue Xie , Li Liu

Localization and mapping are core perceptual capabilities for underwater robots. Stereo cameras provide a low-cost means of directly estimating metric depth to support these tasks. However, despite recent advances in stereo depth estimation…

In this study the detection of the oil spill using synthetic aperture radar (SAR) imagery is considered. Detection of the oil spill is performed using change detection algorithms between imagery acquired at different times. The specific…

Atmospheric and Oceanic Physics · Physics 2016-04-05 Cihan Bayindir , J. David Frost , Christopher F. Barnes

Simulation is an invaluable tool for radio-frequency system designers that enables rapid prototyping of various algorithms for imaging, target detection, classification, and tracking. However, simulating realistic radar scans is a…

Computer Vision and Pattern Recognition · Computer Science 2024-03-07 Tianshu Huang , John Miller , Akarsh Prabhakara , Tao Jin , Tarana Laroia , Zico Kolter , Anthony Rowe

Although deep learning-based methods have achieved excellent performance on SAR ATR, the fact that it is difficult to acquire and label a lot of SAR images makes these methods, which originally performed well, perform weakly. This may be…

Image and Video Processing · Electrical Eng. & Systems 2023-08-23 Chenwei Wang , Siyi Luo , Jifang Pei , Yulin Huang , Yin Zhang , Jianyu Yang

The increased availability of SAR data has raised a growing interest in applying deep learning algorithms. However, the limited availability of labeled data poses a significant challenge for supervised training. This article introduces a…

Signal Processing · Electrical Eng. & Systems 2025-02-04 M. Muzeau , J. Frontera-Pons , Chengfang Ren , J. -P. Ovarlez

Deep learning object detection methods, like YOLOv5, are effective in identifying maritime vessels but often lack detailed information important for practical applications. In this paper, we addressed this problem by developing a technique…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Emre Gülsoylu , Paul Koch , Mert Yıldız , Manfred Constapel , André Peter Kelm

We present OceanSAR-2, the second generation of our foundation model for SAR-based ocean observation. Building on our earlier release, which pioneered self-supervised learning on Sentinel-1 Wave Mode data, OceanSAR-2 relies on improved SSL…

In-situ visual observations of marine organisms is crucial to developing behavioural understandings and their relations to their surrounding ecosystem. Typically, these observations are collected via divers, tags, and remotely-operated or…

Computer Vision and Pattern Recognition · Computer Science 2023-05-04 Levi Cai , Nathan E. McGuire , Roger Hanlon , T. Aran Mooney , Yogesh Girdhar

High-altitude, multi-spectral, aerial imagery is scarce and expensive to acquire, yet it is necessary for algorithmic advances and application of machine learning models to high-impact problems such as wildfire detection. We introduce a…

Computer Vision and Pattern Recognition · Computer Science 2026-01-22 Yajvan Ravan , Aref Malek , Chester Dolph , Nikhil Behari

Tracking multiple moving objects in real-time in a dynamic threat environment is an important element in national security and surveillance system. It helps pinpoint and distinguish potential candidates posing threats from other normal…

Machine Learning · Computer Science 2022-06-27 Imtiaz Ahmed , Mikyoung Jun , Yu Ding

The United States coastline spans 95,471 miles; a distance that cannot be effectively patrolled or secured by manual human effort alone. Unmanned Aerial Vehicles (UAVs) equipped with infrared cameras and deep-learning based algorithms…

Computer Vision and Pattern Recognition · Computer Science 2022-12-27 Rushil Joshi , Ethan Adams , Matthew Ziemann , Christopher A. Metzler

For effective autonomous navigation,estimation of the pose of the robot is essential at every sampling time. For computing an accurate estimation,odometric error needs to be reduced with the help of data from external sensor. In this work,…

Computer Vision and Pattern Recognition · Computer Science 2012-12-07 Debajyoti Banerji , Ranjit Ray , Jhankar Basu , Indrajit Basak

Sonar sensing is fundamental for underwater robotics, but limited by capabilities of AI systems, which need large training datasets. Public data in sonar modalities is lacking. This paper presents the Marine Debris Forward-Looking Sonar…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Matias Valdenegro-Toro , Deepan Chakravarthi Padmanabhan , Deepak Singh , Bilal Wehbe , Yvan Petillot

NOAA's Deep-ocean Assessment and Reporting of Tsunamis (DART) data are critical for NASA-JPL's tsunami detection, real-time operations, and oceanographic research. However, these time-series data often contain spikes, steps, and drifts that…

Machine Learning · Computer Science 2024-12-24 Kevin Lee

The shipping industry is an important component of the global trade and economy, however in order to ensure law compliance and safety it needs to be monitored. In this paper, we present a novel Ship Type classification model that combines…

Artificial Intelligence · Computer Science 2021-11-02 Manolis Pitsikalis , Thanh-Toan Do , Alexei Lisitsa , Shan Luo

At present, deep neural network methods have played a dominant role in face alignment field. However, they generally use predefined network structures to predict landmarks, which tends to learn general features and leads to mediocre…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Jun Wan , He Liu , Yujia Wu , Zhihui Lai , Wenwen Min , Jun Liu

Earth observation technologies, such as optical imaging and synthetic aperture radar (SAR), provide excellent means to monitor ever-growing urban environments continuously. Notably, in the case of large-scale disasters (e.g., tsunamis and…

Computer Vision and Pattern Recognition · Computer Science 2020-09-15 Bruno Adriano , Naoto Yokoya , Junshi Xia , Hiroyuki Miura , Wen Liu , Masashi Matsuoka , Shunichi Koshimura

The detection of early signs of volcanic unrest preceding an eruption, in the form of ground deformation in Interferometric Synthetic Aperture Radar (InSAR) data is critical for assessing volcanic hazard. In this work we treat this as a…

Image and Video Processing · Electrical Eng. & Systems 2022-06-17 Nikolaos Ioannis Bountos , Dimitrios Michail , Ioannis Papoutsis

Despite extensive research into ship detection via remote sensing, no studies identify ship-to-ship transfers in satellite imagery. Given the importance of transshipment in illicit shipping practices, this is a significant gap. In what…

Computer Vision and Pattern Recognition · Computer Science 2024-04-12 Ollie Ballinger
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