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相关论文: 3D Water Quality Mapping using Invariant Extended …

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Sustainable water quality underpins ecological balance and water security. Assessing and managing lakes and reservoirs is difficult due to data sparsity, heterogeneity, and nonlinear relationships among parameters. This review examines how…

机器学习 · 计算机科学 2025-12-23 Oraib Almegdadi , João Marcelino , Sarah Fakhreddine , João Manso , Nuno C. Marques

Localization, or position fixing, is an important problem in robotics research. In this paper, we propose a novel approach for long-term localization in a changing environment using 3D LiDAR. We first create the map of a real environment…

机器人学 · 计算机科学 2019-10-29 Yilong Zhu , Bohuan Xue , Linwei Zheng , Huaiyang Huang , Ming Liu , Rui Fan

We introduce a multi-sensor navigation system for autonomous surface vessels (ASV) intended for water-quality monitoring in freshwater lakes. Our mission planner uses satellite imagery as a prior map, formulating offline a mission-level…

机器人学 · 计算机科学 2024-08-26 Philip Huang , Tony Wang , Florian Shkurti , Timothy D. Barfoot

For underwater vehicles, robotic applications have the added difficulty of operating in highly unstructured and dynamic environments. Environmental effects impact not only the dynamics and controls of the robot but also the perception and…

机器人学 · 计算机科学 2023-07-18 Jingyu Song , Onur Bagoren , Katherine A. Skinner

Underwater navigation presents several challenges, including unstructured unknown environments, lack of reliable localization systems (e.g., GPS), and poor visibility. Furthermore, good-quality obstacle detection sensors for underwater…

机器人学 · 计算机科学 2022-12-09 Pengzhi Yang , Haowen Liu , Monika Roznere , Alberto Quattrini Li

In this study, we address multi-robot localization issues, with a specific focus on cooperative localization and observability analysis of relative pose estimation. Cooperative localization involves enhancing each robot's information…

机器人学 · 计算机科学 2024-02-06 Kihoon Shin , Hyunjae Sim , Seungwon Nam , Yonghee Kim , Jae Hu , Kwang-Ki K. Kim

We present an improved model for MRF-based depth upsampling, guided by image- as well as 3D surface normal features. By exploiting the underlying camera model we define a novel regularization term that implicitly evaluates the planarity of…

计算几何 · 计算机科学 2017-06-20 Sascha Wirges , Björn Roxin , Eike Rehder , Tilman Kühner , Martin Lauer

The objective of this work is to provide high-resolution rain rate maps at short lead-time forecasts (nowcasts) necessary to anticipate flooding and properly manage sewage systems in urban areas by combining radars, rain gauges, and…

大气与海洋物理 · 物理学 2018-10-30 Blandine Bianchi , Peter Jan van Leeuwen , Robin J. Hogan , Alexis Berne

In this study, a small, inexpensive remotely driven underwater vehicle that can navigate in shallow water for the purpose of monitoring water quality and demonstrating vehicle control algorithms is presented. The vehicle is operated by an…

系统与控制 · 电气工程与系统科学 2023-03-24 Ahsan Tanveer , Sarvat Mushtaq Ahmad

Significant work has been done on advancing localization and mapping in underwater environments. Still, state-of-the-art methods are challenged by low-texture environments, which is common for underwater settings. This makes it difficult to…

Corals are the primary habitat-building life-form on reefs that support a quarter of the species in the ocean. A coral reef ecosystem usually consists of reefs, each of which is like a tall building in any city. These reef-building corals…

计算机视觉与模式识别 · 计算机科学 2022-12-09 Jiageng Zhong , Ming Li , Hanqi Zhang , Jiangying Qin

In recent years, 3D mapping for indoor environments has undergone considerable research and improvement because of its effective applications in various fields, including robotics, autonomous navigation, and virtual reality. Building an…

Incident in water distribution systems (WDS) cause water loss and water contamination that requires the utility managers to assess the condition of pipelines in a timely manner. However, pipelines are long and access to all parts of it is a…

机器人学 · 计算机科学 2022-01-31 Saber Kazeminasab , M Katherine Banks

The increasing prevalence of marine pollution during the past few decades motivated recent research to help ease the situation. Typical water quality assessment requires continuous monitoring of water and sediments at remote locations with…

机器学习 · 计算机科学 2022-03-08 Xiaoting Xu , Tin Lai , Sayka Jahan , Farnaz Farid

This paper presents a novel Long Baseline (LBL) position and velocity navigation filter for underwater vehicles based directly on the sensor measurements. The solution departs from previous approaches as the range measurements are…

动力系统 · 数学 2010-05-25 Pedro Batista , Carlos Silvestre , Paulo Oliveira

Quadruped robots are currently a widespread platform for robotics research, thanks to powerful Reinforcement Learning controllers and the availability of cheap and robust commercial platforms. However, to broaden the adoption of the…

Underwater robots play an important role in oceanic geological exploration, resource exploitation, ecological research, and other fields. However, the visual perception of underwater robots is affected by various environmental factors. The…

图像与视频处理 · 电气工程与系统科学 2021-01-08 Xuelei Chen , Pin Zhang , Lingwei Quan , Chao Yi , Cunyue Lu

We introduce a novel method for updating 3D geospatial models, specifically targeting occlusion removal in large-scale maritime environments. Traditional 3D reconstruction techniques often face problems with dynamic objects, like cars or…

计算机视觉与模式识别 · 计算机科学 2024-09-12 Felix Sattler , Borja Carrillo Perez , Maurice Stephan , Sarah Barnes

The environment, especially water, gets polluted due to industrialization and urbanization. Pollution due to industrialization and urbanization has harmful effects on both the environment and the lives on Earth. This polluted water can…

With water quality management processes, identifying and interpreting relationships between features, such as location and weather variable tuples, and water quality variables, such as levels of bacteria, is key to gaining insights and…

人工智能 · 计算机科学 2022-12-12 Conor Muldoon , Levent Görgü , John J. O'Sullivan , Wim G. Meijer , Gregory M. P. O'Hare