Browsing NTNU Open by Author "Ludvigsen, Martin"
Now showing items 21-40 of 112
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Autonomous underwater vehicles in Arctic marine operations: Arctic marine research and ice monitoring
Norgren, Petter (Doctoral theses at NTNU;2018:255, Doctoral thesis, 2018)This thesis considers autonomous underwater vehicles (AUVs) in Arctic marine operations. It focuses on their use as a sensor platform in ice monitoring operations and the use of AUVs for Arctic marine research. Arctic AUV ... -
AUV mission planning for Multiple Vehicles using Adaptive sampling
Alnæs, Fredrik Elgsaas (Master thesis, 2020)Flere AUV-er brukes i dag i prøvetaking av havet for å studere hvordan marint liv i havet påvirkes av endringer på grunn av havfenomener som havfronter eller eddier. Havprøvetaking er ofte avhengig av forhåndsprogrammerte ... -
Bio-optical diversity on cold water coral habitats
Andersson, Ingvild Henriette Kristin (Master thesis, 2017)This study aimed to elucidate the bio-optical diversity of cold water coral habitats and to further improve the accuracy and efficiency of seafloor mapping with the use of an Underwater Hyperspectral Imager (UHI). Comparison ... -
Camera-Sonar Combination for Improved Underwater Localization and Mapping
Cardaillac, Alexandre; Ludvigsen, Martin (Journal article; Peer reviewed, 2023)Taking advantage of the complimentary properties of sonars and cameras can improve underwater visual odometry and point cloud generation. However, this task remains difficult as the image generation concepts are different, ... -
A Communication Interface for Multilayer Cloud Computing Architecture for Low Cost Underwater Vehicles
Cardaillac, Alexandre; Ludvigsen, Martin (Journal article; Peer reviewed, 2022) -
Compact models for adaptive sampling in marine robotics
Fossum, Trygve Olav; Ryan, John; Mukerji, Tapan; Eidsvik, Jo; Maughan, Thom; Ludvigsen, Martin; Rajan, Kanna (Journal article; Peer reviewed, 2019)Finding high-value locations for in situ data collection is of substantial importance in ocean science, where diverse bio-physical processes interact to create dynamically evolving phenomena. These cover a variable spatial ... -
Computer Vision Based Autonomous Panel Intervention for a Remotely Operation Vessel
Xue, Libo (Master thesis, 2018)The Remotely Operated Underwater Vehicle (ROV) has been operating for many years. The use of ROV is increasing with the increased activities in sub-sea missions which are moving towards deep sea. Therefore, the need to ... -
Computer Vision Based Motion Estimation for ROVs
Shen, Shuyuan (Master thesis, 2020)This project thesis presents a real-time visual simultaneous localization and mapping (SLAM) based motion estimation system of remotely operated vehicle (ROV) using a stereo camera. The main purpose is to increase local ... -
Computer Vision Based Obstacle Avoidance for a Remotely Operated Vehicle
Brusletto, Lars Sletbakk (Master thesis, 2016)Remotely Operated Underwater Vehicle (ROV) has been operating for many years. The use of ROV is increasing with the increased activities in sub-sea operations. These operations are today dominated by oil and gas offshore ... -
Contrasting phytoplankton-zooplankton distributions observed through autonomous platforms, in-situ optical sensors and discrete sampling
Fragoso, Glaucia Moreira; Davies, Emlyn John; Fossum, Trygve Olav; Ullgren, Jenny; Majaneva, Sanna; Aberle-Malzahn, Nicole; Ludvigsen, Martin; Johnsen, Geir (Peer reviewed; Journal article, 2022)Plankton distributions are remarkably ‘patchy’ in the ocean. In this study, we investigated the contrasting phytoplankton-zooplankton distributions in relation to wind mixing events in waters around a biodiversity-rich ... -
Control System for ROV Minerva 2
Holven, Erik Bjørklund (Master thesis, 2018)This thesis cover the development of the motion control system for a Remotely Operated Vehicle (ROV). The Norwegian University of Science and Technology are receiving a new ROV, Minerva 2, which is the topic of this thesis. ... -
Cooperative towing using USVs
Kolltveit, Eivind Liby (Master thesis, 2018)In the modern world autonomous systems are becoming ubiquitous - a development driven forth by symbiotic advances in multiple areas of technology as well as the omnipresent desire to cut cost and eliminate risk to humans ... -
Design and Analyze of a Pressure Vessel for an Underwater Remotely Operated Vehicle Produced by Injection Molding
Scheide, Audun Werner (Master thesis, 2016)BluEye Robotics aims to create a mass produced remotely operated vehicle for the consumer marked, that can be used in all parts of the world. For the next generation prototype they want the possibility of mass producing ... -
Design of Multi-Vehicle control system for mapping and monitoring
Yu, Sida (Master thesis, 2021)Denne masteroppgaven foreslår et arbeid med å utvikle GNC-system (veiledning, navigasjon og kontrollsystem) for Double Blueye, som er et fjernoperasjonskjøretøy (ROV) satt sammen av to Blueye Pioneers for å bære instrumenter ... -
Designing and Improving Techniques f or Underwater Visual SLAM and Obstacle Avoidance
Leonardi, Marco (Doctoral theses at NTNU;2023:146, Doctoral thesis, 2023)This thesis focuses on designing and improving techniques for visual simultaneous localization and mapping (Visual SLAM or VSLAM) and obstacle avoidance, in the underwater environment. From the perspective of underwater ... -
Detailed Design of a Thruster Solution for a Small Mass-Market Remotely Operated Underwater Vehicle
Huynh, Johnny Quang Tuan (Master thesis, 2016)This thesis addresses the design of a thruster-solution for a mass-market Remotely Operated Underwater Vehicle with respect to performance and cost while increasing reliability, efficiency and durability of the system. With ... -
Developing an Autonomous Tracking System for the Atlantic Salmon
Ekanger, August (Master thesis, 2018)This thesis presents an autonomous fish tracking system for a tagged Atlantic Salmon using four unmanned surface vehicles equipped with acoustic receivers. The system can be used to monitor both hatchery farmed and wild ... -
Development of a Dynamic Positioning System for Merlin WR200 ROV
Aakre, Øyvind Løberg (Master thesis, 2016)Control of Remotely Operated Vehicles (ROV) with manipulator arms, require control of all Degrees of Freedom (DOF) of the vehicle. Merlin WR200 is a work-class ROV currently equipped with automatic depth and heading control, ... -
Development of Fault Detection Methods for Guidance and Navigation of Underwater Vehicles
Fylling, Marte Cecilie Fladmark (Master thesis, 2019)Undervannsfartøy har et bredt spekter av bruksområder under vann hvor de spiller en stadig viktigere rolle. Slike bruksområder inkluderer inspeksjoner, overvåkning og vedlikehold av offshore- og subsea-installasjoner, samt ... -
A Digital Twin of the Trondheim Fjord for Environmental Monitoring—A Pilot Case
Vasilijevic, Antonio; Brönner, Ute; Dunn, Muriel Barbara; García-Valle, Gonzalo; Fabrini, Jacopo; Stevenson-Jones, Ralph; Bye, Bente Lilja; Mayer, Igor; Berre, Arne- Jørgen; Ludvigsen, Martin; Nepstad, Raymond (Journal article; Peer reviewed, 2024)Digital Twins of the Ocean (DTO) are a rapidly emerging topic that has attracted significant interest from scientists in recent years. The initiative, strongly driven by the EU, aims to create a digital replica of the ocean ...