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This paper introduces an underwater multi-robot platform, named Aucamp, characterized by cost-effective monocular-camera-based sensing, distributed protocol and robust orientation control for localization. We utilize the clarity feature to…

Robotics · Computer Science 2025-06-12 Jisheng Xu , Ding Lin , Pangkit Fong , Chongrong Fang , Xiaoming Duan , Jianping He

Robust three-dimensional scene understanding is now an ever-growing area of research highly relevant in many real-world applications such as autonomous driving and robotic navigation. In this paper, we propose a multi-task learning-based…

Computer Vision and Pattern Recognition · Computer Science 2019-08-16 Amir Atapour-Abarghouei , Toby P. Breckon

Real-scale scene flow estimation has become increasingly important for 3D computer vision. Some works successfully estimate real-scale 3D scene flow with LiDAR. However, these ubiquitous and expensive sensors are still unlikely to be…

Computer Vision and Pattern Recognition · Computer Science 2021-11-25 Runfa Li , Truong Nguyen

We present an algorithm for estimating consistent dense depth maps and camera poses from a monocular video. We integrate a learning-based depth prior, in the form of a convolutional neural network trained for single-image depth estimation,…

Computer Vision and Pattern Recognition · Computer Science 2021-06-23 Johannes Kopf , Xuejian Rong , Jia-Bin Huang

The ability of autonomous vehicles to maintain an accurate trajectory within their road lane is crucial for safe operation. This requires detecting the road lines and estimating the car relative pose within its lane. Lateral lines are…

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

Monocular depth estimation is often described as an ill-posed and inherently ambiguous problem. Estimating depth from 2D images is a crucial step in scene reconstruction, 3Dobject recognition, segmentation, and detection. The problem can be…

Computer Vision and Pattern Recognition · Computer Science 2019-01-29 Amlaan Bhoi

In this paper, we present a fast monocular depth estimation method for enabling 3D perception capabilities of low-cost underwater robots. We formulate a novel end-to-end deep visual learning pipeline named UDepth, which incorporates domain…

Computer Vision and Pattern Recognition · Computer Science 2023-02-03 Boxiao Yu , Jiayi Wu , Md Jahidul Islam

Three-dimensional (3D) reconstruction of ships is an important part of maritime monitoring, allowing improved visualization, inspection, and decision-making in real-world monitoring environments. However, most state-ofthe-art 3D…

Computer Vision and Pattern Recognition · Computer Science 2026-01-30 Borja Carrillo-Perez , Felix Sattler , Angel Bueno Rodriguez , Maurice Stephan , Sarah Barnes

We present MoGe, a powerful model for recovering 3D geometry from monocular open-domain images. Given a single image, our model directly predicts a 3D point map of the captured scene with an affine-invariant representation, which is…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Ruicheng Wang , Sicheng Xu , Cassie Dai , Jianfeng Xiang , Yu Deng , Xin Tong , Jiaolong Yang

Object detection in high-resolution satellite imagery is emerging as a scalable alternative to on-the-ground survey data collection in many environmental and socioeconomic monitoring applications. However, performing object detection over…

Computer Vision and Pattern Recognition · Computer Science 2021-12-17 Chenlin Meng , Enci Liu , Willie Neiswanger , Jiaming Song , Marshall Burke , David Lobell , Stefano Ermon

Rockfall detection is a crucial procedure in the field of geology, which helps to reduce the associated risks. Currently, geologists identify rockfall events almost manually utilizing point cloud and imagery data obtained from different…

Machine Learning · Computer Science 2022-09-29 Thanasis Zoumpekas , Anna Puig , Maria Salamó , David García-Sellés , Laura Blanco Nuñez , Marta Guinau

Volume estimation of onshore cargo piles is of economic importance for shipping and mining companies as well as public authorities for real-time planning of logistics, business intelligence, transport services by land or sea and…

Space Physics · Physics 2025-11-18 Debanshu Ratha , Madhu Koirala , Pål Gunnar Ellingsen

Estimating global tree canopy height is crucial for forest conservation and climate change applications. However, capturing high-resolution ground truth canopy height using LiDAR is expensive and not available globally. An efficient…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Daniele Rege Cambrin , Isaac Corley , Paolo Garza

The quantification of positively buoyant marine plastic debris is critical to understanding how plastic litter accumulates across the world's oceans and is also crucial to identifying hotspots for targeted cleanup efforts. Currently, the…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Gautam Tata , Sarah-Jeanne Royer , Olivier Poirion , Jay Lowe

A reliable sense-and-avoid system is critical to enabling safe autonomous operation of unmanned aircraft. Existing sense-and-avoid methods often require specialized sensors that are too large or power intensive for use on small unmanned…

Computer Vision and Pattern Recognition · Computer Science 2021-11-04 John Mern , Kyle Julian , Rachael E. Tompa , Mykel J. Kochenderfer

In the reconstruction process of sound waves in a 3D stratified waveguide, a key technique is to effectively reduce the huge computational demand. In this work, we propose an efficient and simple multilevel reconstruction method to help…

Numerical Analysis · Mathematics 2016-02-17 Keji Liu , Yongzhi Xu , Jun Zou

Globally localizing in a given map is a crucial ability for robots to perform a wide range of autonomous navigation tasks. This paper presents OneShot - a global localization algorithm that uses only a single 3D LiDAR scan at a time, while…

Robotics · Computer Science 2020-04-01 Sebastian Ratz , Marcin Dymczyk , Roland Siegwart , Renaud Dubé

Depth estimation is critical for any robotic system. In the past years estimation of depth from monocular images have shown great improvement, however, in the underwater environment results are still lagging behind due to appearance changes…

Computer Vision and Pattern Recognition · Computer Science 2022-10-10 Shlomi Amitai , Itzik Klein , Tali Treibitz

The multi-beam measurement system plays a crucial role in ocean mapping and underwater terrain detection. By simultaneously transmitting multiple beams, the system can accurately receive sound waves reflected from the seabed, providing more…

Numerical Analysis · Mathematics 2024-07-12 Chuangqi Li , Yuhang Wang , Fan Hu