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Underwater Vehicles have become more sophisticated, driven by the off-shore sector and the scientific community's rapid advancements in underwater operations. Notably, many underwater tasks, including the assessment of subsea…

Computer Vision and Pattern Recognition · Computer Science 2022-09-15 Ioannis Polymenis , Maryam Haroutunian , Rose Norman , David Trodden

Underwater environments pose significant challenges due to the selective absorption and scattering of light by water, which affects image clarity, contrast, and color fidelity. To overcome these, we introduce OceanLens, a method that models…

Image and Video Processing · Electrical Eng. & Systems 2024-11-21 Rajini Makam , Dhatri Shankari T M , Sharanya Patil , Suresh Sundram

We introduce pluralistic salient object detection (PSOD), a novel task aimed at generating multiple plausible salient segmentation results for a given input image. Unlike conventional SOD methods that produce a single segmentation mask for…

Computer Vision and Pattern Recognition · Computer Science 2024-09-05 Xuelu Feng , Yunsheng Li , Dongdong Chen , Chunming Qiao , Junsong Yuan , Lu Yuan , Gang Hua

Underwater target detection using active sonar constitutes a critical research area in marine sciences and engineering. However, traditional signal processing methods face significant challenges in complex underwater environments due to…

Signal Processing · Electrical Eng. & Systems 2025-07-29 Jichao Zhang , Xiao-Lei Zhang , Kunde Yang

Underwater litter is widely spread across aquatic environments such as lakes, rivers, and oceans, significantly impacting natural ecosystems. Current monitoring technologies for detecting underwater litter face limitations in survey…

Computer Vision and Pattern Recognition · Computer Science 2025-07-09 Fan Zhao , Yongying Liu , Jiaqi Wang , Yijia Chen , Dianhan Xi , Xinlei Shao , Shigeru Tabeta , Katsunori Mizuno

Generating 3D point cloud (PC) data from noisy sonar measurements is a problem that has potential applications for bathymetry mapping, artificial object inspection, mapping of aquatic plants and fauna as well as underwater navigation and…

Computer Vision and Pattern Recognition · Computer Science 2022-10-20 Andres Pulido , Ruoyao Qin , Antonio Diaz , Andrew Ortega , Peter Ifju , Jaejeong Shin

Retrieving the missing dimension information in acoustic images from 2D forward-looking sonar is a well-known problem in the field of underwater robotics. There are works attempting to retrieve 3D information from a single image which…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Yusheng Wang , Yonghoon Ji , Hiroshi Tsuchiya , Hajime Asama , Atsushi Yamashita

Underwater sonar imaging plays a crucial role in various applications, including autonomous navigation in murky water, marine archaeology, and environmental monitoring. However, the unique characteristics of sonar images, such as complex…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Shida Xu , Jingqi Jiang , Jonatan Scharff Willners , Sen Wang

Target identification of ship-radiated noise is a crucial area in underwater target recognition. However, there is currently a lack of multi-target ship datasets that accurately represent real-world underwater acoustic conditions. To…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-10 Xiaoyang Du , Feng Hong

Underwater Camouflaged Object Detection (UCOD) aims to identify objects that blend seamlessly into underwater environments. This task is critically important to marine ecology. However, it remains largely underexplored and accurate…

Computer Vision and Pattern Recognition · Computer Science 2025-09-08 Xinxin Huang , Han Sun , Ningzhong Liu , Huiyu Zhou , Yinan Yao

UAV-borne hyperspectral remote sensing has emerged as a promising approach for underwater target detection (UTD). However, its effectiveness is hindered by spectral distortions in nearshore environments, which compromise the accuracy of…

Computer Vision and Pattern Recognition · Computer Science 2025-02-21 Jiahao Qi , Chuanhong Zhou , Xingyue Liu , Chen Chen , Dehui Zhu , Kangcheng Bin , Ping Zhong

This study explores the application of self-supervised learning (SSL) for improved target recognition in synthetic aperture sonar (SAS) imagery. The unique challenges of underwater environments make traditional computer vision techniques,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-31 BW Sheffield

Machine learning and neural networks are now ubiquitous in sonar perception, but it lags behind the computer vision field due to the lack of data and pre-trained models specifically for sonar images. In this paper we present the Marine…

Computer Vision and Pattern Recognition · Computer Science 2021-08-04 Matias Valdenegro-Toro , Alan Preciado-Grijalva , Bilal Wehbe

Maritime environmental sensing requires overcoming challenges from complex conditions such as harsh weather, platform perturbations, large dynamic objects, and the requirement for long detection ranges. While cameras and LiDAR are commonly…

The recognition of underwater audio plays a significant role in identifying a vessel while it is in motion. Underwater target recognition tasks have a wide range of applications in areas such as marine environmental protection, detection of…

Computer Vision and Pattern Recognition · Computer Science 2024-06-12 Zeyu Li , Suncheng Xiang , Tong Yu , Jingsheng Gao , Jiacheng Ruan , Yanping Hu , Ting Liu , Yuzhuo Fu

Underwater target localization uses real-time sensory measurements to estimate the position of underwater objects of interest, providing critical feedback information for underwater robots. While acoustic sensing is the most acknowledged…

Robotics · Computer Science 2024-09-10 Mingyang Yang , Zeyu Sha , Feitian Zhang

Deep learning-based underwater object detection (UOD) remains a major challenge due to the degraded visibility and difficulty to obtain sufficient underwater object images captured from various perspectives for training. To address these…

Computer Vision and Pattern Recognition · Computer Science 2022-03-10 Xiuyuan Li , Fengchao Li , Jiangang Yu , Guowen An

Underwater object detection using sonar imagery has become a critical and rapidly evolving research domain within marine technology. However, sonar images are characterized by lower resolution and sparser features compared to optical…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 XiaoTong Gu , Shengyu Tang , Yiming Cao , Changdong Yu

Maritime environments often present hazardous situations due to factors such as moving ships or buoys, which become obstacles under the influence of waves. In such challenging conditions, the ability to detect and track potentially…

Robotics · Computer Science 2024-12-20 Jiwon Choi , Dongjin Cho , Gihyeon Lee , Hogyun Kim , Geonmo Yang , Joowan Kim , Younggun Cho

In robotics and computer vision communities, extensive studies have been widely conducted regarding surveillance tasks, including human detection, tracking, and motion recognition with a camera. Additionally, deep learning algorithms are…