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Visual challenges in underwater environments significantly hinder the accuracy of vision-based localisation and the high-fidelity dense reconstruction. In this paper, we propose VISO, a robust underwater SLAM system that fuses a stereo…

Robotics · Computer Science 2026-03-09 Shu Pan , Simon Archieri , Ahmet Cinar , Jonatan Scharff Willners , Ignacio Carlucho , Yvan Petillot

We propose the GraphSIM -- an objective metric to accurately predict the subjective quality of point cloud with superimposed geometry and color impairments. Motivated by the facts that human vision system is more sensitive to the high…

Image and Video Processing · Electrical Eng. & Systems 2020-12-23 Qi Yang , Zhan Ma , Yiling Xu , Zhu Li , Jun Sun

We propose a novel approach to handling the ambiguity in elevation angle associated with the observations of a forward looking multi-beam imaging sonar, and the challenges it poses for performing an accurate 3D reconstruction. We utilize a…

Robotics · Computer Science 2020-07-22 John McConnell , John D. Martin , Brendan Englot

Recent work has achieved dense 3D reconstruction with wide-aperture imaging sonar using a stereo pair of orthogonally oriented sonars. This allows each sonar to observe a spatial dimension that the other is missing, without requiring any…

Robotics · Computer Science 2021-04-08 John McConnell , Brendan Englot

The transport industry has recently shown significant interest in unmanned surface vehicles (USVs), specifically for port and inland waterway transport. These systems can improve operational efficiency and safety, which is especially…

Robotics · Computer Science 2026-04-22 Bavo Lesy , Siemen Herremans , Robin Kerstens , Jan Steckel , Walter Daems , Siegfried Mercelis , Ali Anwar

This paper presents and investigates a novel methodology for validating high-resolution ocean models using satellite imagery. High-resolution ocean models provide detailed information in coastal areas where other available data products are…

Atmospheric and Oceanic Physics · Physics 2025-01-28 G. Garcia-Sanchez , A. M. Mancho , A. G. Ramos , J. Coca , J. A. Jimenez-Madrid

High-quality training data is essential for enhancing the robustness of object detection models. Within the maritime domain, obtaining a diverse real image dataset is particularly challenging due to the difficulty of capturing sea images…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 Martin Tran , Jordan Shipard , Hermawan Mulyono , Arnold Wiliem , Clinton Fookes

This study presents a bio inspired signal processing framework for robust Underwater Acoustic Target Recognition (UATR). The latest state of the art methods often fail to resolve dense low frequency harmonic structures in vessel propulsion…

Sound · Computer Science 2026-05-07 Rajeshwar Tripathi , Sandeep Kumar , Monika Aggarwal , Neel Kanth Kundu

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

In Extended Reality (XR), rendering sound that accurately simulates real-world acoustics is pivotal in creating lifelike and believable virtual experiences. However, existing XR spatial audio rendering methods often struggle with real-time…

Subsea images measured by the side scan sonars (SSSs) are necessary visual data in the process of deep-sea exploration by using the autonomous underwater vehicles (AUVs). They could vividly reflect the topography of the seabed, but usually…

Image and Video Processing · Electrical Eng. & Systems 2021-08-30 Xiaoteng Zhou , Changli Yu , Xin Yuan , Citong Luo

The traditional definition of co-salient object detection (CoSOD) task is to segment the common salient objects in a group of relevant images. This definition is based on an assumption of group consensus consistency that is not always…

Computer Vision and Pattern Recognition · Computer Science 2023-10-17 Yang Wu , Shenglong Hu , Huihui Song , Kaihua Zhang , Bo Liu , Dong Liu

Spike cameras, with their exceptional temporal resolution, are revolutionizing high-speed visual applications. Large-scale synthetic datasets have significantly accelerated the development of these cameras, particularly in reconstruction…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Liwen Hu , Lei Ma , Yijia Guo , Tiejun Huang

$\nu$SpaceSim is a highly-efficient (e.g., fast) module-based, end-to-end simulation package that models the physical processes of cosmic neutrino interactions that leads to detectable signals for sub-orbital and space-based instruments.…

High Energy Astrophysical Phenomena · Physics 2025-09-22 Mary Hall Reno , John F. Krizmanic

Object detection in sonar images is crucial for underwater robotics applications including autonomous navigation and resource exploration. However, complex noise patterns inherent in sonar imagery, particularly speckle, reverberation, and…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Ziyu Wang , Tao Xue , Jingyuan Li , Haibin Zhang , Zhiqiang Xu , Gaofei Xu , Zhen Wang , Yanbin Wang , Zhiquan Liu

For many years, there seemed to be significant differences between the continuum intensity distributions derived from observations and simulations of the solar photosphere. In order to settle the discussion on these apparent discrepancies,…

Solar and Stellar Astrophysics · Physics 2009-08-27 S. Wedemeyer-Böhm , L. Rouppe van der Voort

Semantic image synthesis, i.e., generating images from user-provided semantic label maps, is an important conditional image generation task as it allows to control both the content as well as the spatial layout of generated images. Although…

Computer Vision and Pattern Recognition · Computer Science 2024-01-09 Tariq Berrada , Jakob Verbeek , Camille Couprie , Karteek Alahari

Transparent objects are a very challenging problem in computer vision. They are hard to segment or classify due to their lack of precise boundaries, and there is limited data available for training deep neural networks. As such, current…

Graphics · Computer Science 2021-10-12 Mehdi Mousavi , Rolando Estrada

We introduce GausSim, a novel neural network-based simulator designed to capture the dynamic behaviors of real-world elastic objects represented through Gaussian kernels. We leverage continuum mechanics and treat each kernel as a Center of…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Yidi Shao , Mu Huang , Chen Change Loy , Bo Dai

Sensors measuring real-life physical processes are ubiquitous in today's interconnected world. These sensors inherently bear noise that often adversely affects performance and reliability of the systems they support. Classic filtering-based…

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