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Autonomous navigation in underwater environments presents challenges due to factors such as light absorption and water turbidity, limiting the effectiveness of optical sensors. Sonar systems are commonly used for perception in underwater…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Ivano Donadi , Emilio Olivastri , Daniel Fusaro , Wanmeng Li , Daniele Evangelista , Alberto Pretto

Uses of underwater videos to assess diversity and abundance of fish are being rapidly adopted by marine biologists. Manual processing of videos for quantification by human analysts is time and labour intensive. Automatic processing of…

Computer Vision and Pattern Recognition · Computer Science 2018-07-17 Ranju Mandal , Rod M. Connolly , Thomas A. Schlacherz , Bela Stantic

In an augmented reality (AR) application, placing labels in a manner that is clear and readable without occluding the critical information from the real-world can be a challenging problem. This paper introduces a label placement technique…

Computer Vision and Pattern Recognition · Computer Science 2024-09-02 Jianqing Jia , Semir Elezovikj , Heng Fan , Shuojin Yang , Jing Liu , Wei Guo , Chiu C. Tan , Haibin Ling

Computer vision techniques have empowered underwater robots to effectively undertake a multitude of tasks, including object tracking and path planning. However, underwater optical factors like light refraction and absorption present…

Computer Vision and Pattern Recognition · Computer Science 2024-06-24 Haodong Yang , Jisheng Xu , Zhiliang Lin , Jianping He

Underwater scenes intrinsically involve degradation problems owing to heterogeneous ocean elements. Prevailing underwater image enhancement (UIE) methods stick to straightforward feature modeling to learn the mapping function, which leads…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Zhixiong Huang , Xinying Wang , Chengpei Xu , Jinjiang Li , Lin Feng

Watermarking has emerged as an effective solution for copyright protection of synthetic data. However, applying watermarking techniques to synthetic tabular data presents challenges, as tabular data can easily lose their watermarks through…

Cryptography and Security · Computer Science 2026-03-17 Yuyang Xia , Yaoqiang Xu , Chen Qian , Yang Li , Guoliang Li , Jianhua Feng

Developing a robust and effective obstacle detection and tracking system for Unmanned Surface Vehicle (USV) at marine environments is a challenging task. Research efforts have been made in this area during the past years by GRAAL lab at the…

Robotics · Computer Science 2025-11-12 Yara AlaaEldin , Enrico Simetti , Francesca Odone

Indoor navigation is a foundational technology to assist the tracking and localization of humans, autonomous vehicles, drones, and robots in indoor spaces. Due to the lack of penetration of GPS signals in buildings, subterranean locales,…

Machine Learning · Computer Science 2024-08-12 Sudeep Pasricha

Digital image watermarking is the process of embedding and extracting a watermark covertly on a cover-image. To dynamically adapt image watermarking algorithms, deep learning-based image watermarking schemes have attracted increased…

Multimedia · Computer Science 2020-07-07 Xin Zhong , Pei-Chi Huang , Spyridon Mastorakis , Frank Y. Shih

Domain shift, where deviations between training and deployment data distributions degrade model performance, is a key challenge in underwater environments. Existing benchmarks testing performance for underwater domain shift simulate…

Computer Vision and Pattern Recognition · Computer Science 2026-04-30 Melanie Wille , Dimity Miller , Tobias Fischer , Scarlett Raine

Recent advances in deep reinforcement learning and scalable photorealistic simulation have led to increasingly mature embodied AI for various visual tasks, including navigation. However, while impressive progress has been made for teaching…

Robotics · Computer Science 2023-10-16 Naoki Yokoyama , Qian Luo , Dhruv Batra , Sehoon Ha

Augmented Reality is an environment-enhancing technology, widely applied in many domains, such as tourism and culture. One of the major challenges in this field is precise detection and extraction of building information through Computer…

Computer Vision and Pattern Recognition · Computer Science 2021-06-03 Ciprian Orhei , Silviu Vert , Radu Vasiu

Augmented reality (AR) is one of the relatively old, yet trending areas in the intersection of computer vision and computer graphics with numerous applications in several areas, from gaming and entertainment, to education and healthcare.…

Computer Vision and Pattern Recognition · Computer Science 2022-02-28 Shervin Minaee , Xiaodan Liang , Shuicheng Yan

Underwater robot interventions require a high level of safety and reliability. A major challenge to address is a robust and accurate acquisition of localization estimates, as it is a prerequisite to enable more complex tasks, e.g. floating…

Robotics · Computer Science 2019-06-13 Arturo Gomez Chavez , Qingwen Xu , Christian A. Mueller , Sören Schwertfeger , Andreas Birk

Underwater surveys provide long-term data for informing management strategies, monitoring coral reef health, and estimating blue carbon stocks. Advances in broad-scale survey methods, such as robotic underwater vehicles, have increased the…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Scarlett Raine , Frederic Maire , Niko Suenderhauf , Tobias Fischer

The design of optical systems for underwater vehicles is a complex process where the selection of cameras, lenses, housings, and operational parameters greatly influence the performance of the complete system. Determining the correct…

Image and Video Processing · Electrical Eng. & Systems 2020-04-16 Gideon Billings , Eduardo Iscar , Matthew Johnson-Roberson

Lighting understanding plays an important role in virtual object composition, including mobile augmented reality (AR) applications. Prior work often targets recovering lighting from the physical environment to support photorealistic AR…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Yiqin Zhao , Sean Fanello , Tian Guo

This work reviews the problem of object detection in underwater environments. We analyse and quantify the shortcomings of conventional state-of-the-art (SOTA) algorithms in the computer vision community when applied to this challenging…

Computer Vision and Pattern Recognition · Computer Science 2022-05-24 Andre Jesus , Claudio Zito , Claudio Tortorici , Eloy Roura , Giulia De Masi

Augmented Reality (AR) surgical navigation systems are emerging as the next generation of intraoperative surgical guidance, promising to overcome limitations of traditional navigation systems. However, known issues with AR depth perception…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Marc J. Fischer , Jeffrey Potts , Gabriel Urreola , Dax Jones , Paolo Palmisciano , E. Bradley Strong , Branden Cord , Andrew D. Hernandez , Julia D. Sharma , E. Brandon Strong

Visual localization is crucial for Computer Vision and Augmented Reality (AR) applications, where determining the camera or device's position and orientation is essential to accurately interact with the physical environment. Traditional…

Robotics · Computer Science 2025-01-22 Albert Gassol Puigjaner , Irvin Aloise , Patrik Schmuck