Blar i NTNU Open på forfatter "Ludvigsen, Martin"

Viser treff 21-40 av 98

    • 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 ...

    • Dynamics of Remotely Operated Underwater Vehicle Systems 

      Eidsvik, Ole Alexander Nørve (Doctoral theses at NTNU;2018:224, Doctoral thesis, 2018)
      The dynamics of typical remotely operated vehicle (ROV) systems are considered, and the subject is divided into three topics. Topic 1 considers the dynamics of single-body and multi-body ROVs, topic 2 considers the dynamics ...

    • Eyes beneath the surface - using a miniROV to reveal the habitat and dietary choices of the European shag 

      Strømsholm, Jørgen (Master thesis, 2018)
      The population of sea birds in Norway is drastically declining, and numbers of breeding European shag (Phalacrocorax aristotelis) in the nesting colony in Runde, Norway, has declined with ~96% in the last 40 years. Mapping ...

    • Feasibility of Deep-Sea Mining Operation Within Norwegian Jurisdiction 

      Frimanslund, Erik Kristian Thon (Master thesis, 2016)
      Numerous hydrothermal vent sites are discovered along the Arctic Mid-Ocean Ridge (AMOR), stretching some 1,050 km from Jan Mayen to Svalbard, mostly within Norway s economically exclusive zone (EEZ). Associated with these ...

    • Field Report: Exploring Fronts with Multiple Robots 

      Costa, Maria; Pinto, José; Dias, Paulo Sousa; Pereira, Joao; Lima, Keila; Ribeiro, Manuel; Sousa, Joao Borges; Lukaczyk, Trent; Mendes, Renato; Tomasino, Maria Paola; Magalhaes, Catarina; Belkin, Igor; Lopez-Castejon, Francisco; Gilabert, Javier; Skarpnes, Kay Arne; Ludvigsen, Martin; Rajan, Kanna; Mirmalek, Zara; Chekalyuk, Alexander (Chapter, 2018)
      This paper presents a report from a cruise onboard the R/V Falkor oceanographic vessel from the Schmidt Ocean Institute. The goal of this cruise was to demonstrate a novel approach to observe the ocean with multiple ...

    • First hyperspectral imaging survey of the deep seafloor: High-resolution mapping of manganese nodules 

      Dumke, Ines; Nornes, Stein Melvær; Purser, Autun; Marcon, Yann; Ludvigsen, Martin; Ellefmo, Steinar Løve; Johnsen, Geir; Søreide, Fredrik (Journal article; Peer reviewed, 2018)
      Hyperspectral seafloor surveys using airborne or spaceborne sensors are generally limited to shallow coastal areas, due to the requirement for target illumination by sunlight. Deeper marine environments devoid of sunlight ...

    • A flow-through imaging system for automated measurement of ichthyoplankton 

      Williamson, David Roddan; Nordtug, Trond; Leirvik, Frode; Kvæstad, Bjarne; Hansen, Bjørn Henrik; Ludvigsen, Martin; Davies, Emlyn John (Peer reviewed; Journal article, 2022)
      Microscopic imaging and morphometric measurement of fish embryos and larvae is essential in environmental monitoring of fish populations and to evaluate larvae development in aquaculture. Traditional microscopy methods ...