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Among underwater perceptual sensors, imaging sonar has been highlighted for its perceptual robustness underwater. The major challenge of imaging sonar, however, arises from the difficulty in defining visual features despite limited…

Robotics · Computer Science 2018-10-19 Sejin Lee , Byungjae Park , Ayoung Kim

This work presents a converged framework of Machine-Learning Assisted Turbulence Modeling (MLATM). Our objective is to develop a turbulence model directly learning from high fidelity data (DNS/LES) with eddy-viscosity hypothesis induced.…

Fluid Dynamics · Physics 2019-07-09 Weishuo Liu , Jian Fang , Stefano Rolfo , Lipeng Lu

LiDAR object detection algorithms based on neural networks for autonomous driving require large amounts of data for training, validation, and testing. As real-world data collection and labeling are time-consuming and expensive,…

Computer Vision and Pattern Recognition · Computer Science 2023-03-06 Sebastian Huch , Luca Scalerandi , Esteban Rivera , Markus Lienkamp

Dense matching is crucial for 3D scene reconstruction since it enables the recovery of scene 3D geometry from image acquisition. Deep Learning (DL)-based methods have shown effectiveness in the special case of epipolar stereo disparity…

Computer Vision and Pattern Recognition · Computer Science 2024-02-21 Teng Wu , Bruno Vallet , Marc Pierrot-Deseilligny , Ewelina Rupnik

In this thesis, we leverage monocular cameras on aerial robots to predict depth and semantic maps in low-altitude unstructured environments. We propose a joint deep-learning architecture, named Co-SemDepth, that can perform the two tasks…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Yara AlaaEldin

AI emulators for forecasting have emerged as powerful tools that can outperform conventional numerical predictions. The next frontier is to build emulators for long climate simulations with skill across a range of spatiotemporal scales, a…

Atmospheric and Oceanic Physics · Physics 2025-06-03 Surya Dheeshjith , Adam Subel , Alistair Adcroft , Julius Busecke , Carlos Fernandez-Granda , Shubham Gupta , Laure Zanna

Images acquired during underwater activities suffer from environmental properties of the water, such as turbidity and light attenuation. These phenomena cause color distortion, blurring, and contrast reduction. In addition, irregular…

Image and Video Processing · Electrical Eng. & Systems 2022-08-09 Claudio D. Mello , Bryan U. Moreira , Paulo J. O. Evald , Paulo L. Drews , Silvia S. Botelho

Sea Surface Temperature (SST) reconstructions from satellite images affected by cloud gaps have been extensively documented in the past three decades. Here we describe several Machine Learning models to fill the cloud-occluded areas…

Computer Vision and Pattern Recognition · Computer Science 2025-05-08 Andrea Asperti , Ali Aydogdu , Angelo Greco , Fabio Merizzi , Pietro Miraglio , Beniamino Tartufoli , Alessandro Testa , Nadia Pinardi , Paolo Oddo

As it stands, a robust mathematical framework to analyse and study various topics in deep learning is yet to come to the fore. Nonetheless, viewing deep learning as a dynamical system allows the use of established theories to investigate…

Machine Learning · Computer Science 2022-07-26 Nader Ganaba

We present 500 high-resolution, full-sky millimeter-wave Deep Learning (DL) simulations that include lensed CMB maps and correlated foreground components. We find that these MillimeterDL simulations can reproduce a wide range of…

Cosmology and Nongalactic Astrophysics · Physics 2021-12-22 Dongwon Han , Neelima Sehgal , Francisco Villaescusa-Navarro

Underwater mine detection with deep learning suffers from limitations due to the scarcity of real-world data. This scarcity leads to overfitting, where models perform well on training data but poorly on unseen data. This paper proposes a…

Machine Learning · Computer Science 2025-03-17 Aayush Agrawal , Aniruddh Sikdar , Rajini Makam , Suresh Sundaram , Suresh Kumar Besai , Mahesh Gopi

We present a deep neural network based method for the retrieval of watermarks from images of 3D printed objects. To deal with the variability of all possible 3D printing and image acquisition settings we train the network with synthetic…

Computer Vision and Pattern Recognition · Computer Science 2019-05-24 Xin Zhang , Ning Jia , Ioannis Ivrissimtzis

Today's ocean numerical prediction skills depend on the availability of in-situ and remote ocean observations at the time of the predictions only. Because observations are scarce and discontinuous in time and space, numerical models are…

Signal Processing · Electrical Eng. & Systems 2022-06-06 Ali Muhamed Ali , Hanqi Zhuang , Yu Huang , Ali K. Ibrahim , Ali Salem Altaher , Laurent Chérubin

Marine snow, the floating particles in underwater images, severely degrades the visibility and performance of human and machine vision systems. This paper proposes a novel method to reduce the marine snow interference using deep learning…

Image and Video Processing · Electrical Eng. & Systems 2023-11-28 Fernando Galetto , Guang Deng

In an era where maritime infrastructures are crucial, advanced situational awareness solutions are increasingly important. The use of optical camera systems can allow real-time usage of maritime footage. This thesis presents an…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Borja Carrillo Perez

The reconstruction of ocean subsurface temperature (OST) using satellite remote sensing data holds significant scientific value for advancing the understanding of ocean dynamics and climate variability. However, the scarcity of subsurface…

Atmospheric and Oceanic Physics · Physics 2026-05-05 Ming Shan Loo , Wengen Li , Xudong Jiang , Hailiang Cheng , Zhifei Zhang , Jihong Guan , Yichao Zhang

The analysis of electrical impulse phenomena in cardiac muscle tissue is important for the diagnosis of heart rhythm disorders and other cardiac pathophysiology. Cardiac mapping techniques acquire local temporal measurements and combine…

Medical Physics · Physics 2022-03-21 Jan Lebert , Namita Ravi , Flavio Fenton , Jan Christoph

This paper presents a deep learning approach to aid dead-reckoning (DR) navigation using a limited sensor suite. A Recurrent Neural Network (RNN) was developed to predict the relative horizontal velocities of an Autonomous Underwater…

Robotics · Computer Science 2021-10-05 Ivar Bjørgo Saksvik , Alex Alcocer , Vahid Hassani

Satellite radar altimeters are a key source of observation of ocean surface dynamics. However, current sensor technology and mapping techniques do not yet allow to systematically resolve scales smaller than 100km. With their new sensors,…

Machine Learning · Computer Science 2023-09-28 Quentin Febvre , Ronan Fablet , Julien Le Sommer , Clément Ubelmann

In this paper, by exploiting the powerful ability of deep learning, we devote to designing a well-performing and pilot-saving neural network for the channel estimation in underwater acoustic (UWA) orthogonal frequency division multiplexing…

Information Theory · Computer Science 2021-03-10 Donghong Ouyang , Yuzhou Li , Zhizhan Wang