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Språkvelger

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Lars Ivar Hatledal

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Lars Ivar Hatledal

Associate Professor
Department of ICT and Natural Sciences
Faculty of Information Technology and Electrical Engineering

laht@ntnu.no
+4740054833 Ankeret, B318, Ålesund
Google Scholar
About Publications Teaching Outreach

About

I am an Associate Professor at the Department of ICT and Natural Sciences, NTNU in Ålesund. My research sits at the intersection of simulation, digital twins and artificial intelligence for maritime and industrial systems, with a particular focus on machine vision, robotics and software architecture. I am affiliated with the Norwegian Maritime AI Center, and much of my work is released as open-source software.

Research interests

  • Artificial intelligence and machine vision
  • Robotics and reinforcement learning (sim-to-real)
  • Synthetic data and simulation-based training
  • Digital twins and co-simulation
  • 3D visualisation
  • Software architecture

Education

  • 2021 – PhD in co-simulation, Department of Ocean Operations and Civil Engineering, NTNU in Ålesund
  • 2017 – MSc in Simulation and Visualization, Department of ICT and Natural Sciences, NTNU in Ålesund
  • 2013 – BSc in Automation Engineering, Department of ICT and Natural Sciences, NTNU in Ålesund

Project experience

  • 2026 – : Norwegian Maritime AI Center
  • 2025 – : Industrial PhD with Solwr on warehouse robotics
  • 2024 – : Industrial PhD with Seaonics on crane control for offshore operations
  • 2018 – 2021: KPN "Digital Twins for Vessel Life Cycle Service"
  • 2017 – 2021: SFI "Offshore Mechatronics"

Open source

I develop and maintain several open-source software projects. A full overview is available at github.com/markaren.

Supervision

I supervise bachelor's and master's theses in machine vision (e.g. fish processing and pallet inspection), robotics, simulation, synthetic data and maritime autonomy, often in collaboration with industry. Get in touch if you have a project idea in these areas.

Member of NTNU CPS Lab. Alumni member of NTNU Ålesund Intelligent Systems Lab.

Competencies

  • machine learning
  • machine vision
  • reinforcement learning
  • simulation
  • visualisation

Publications

  • Chronological
  • By category
  • All publications registered in NVA

2026

  • Espenakk, Erik; Bjørlykhaug, Emil Dale; Midtbø, Anders Ystebakk; Hatledal, Lars Ivar. (2026) On-demand vision-based swing suppression for offshore cranes: An onshore field study. European Journal of Control
    Academic article

2025

  • Hatledal, Lars Ivar. (2025) Ecos: An accessible and intuitive co-simulation framework. Journal of Open Source Software (JOSS)
    Academic article
  • Fagerhaug, Eirik Strøm; Hatledal, Lars Ivar; Bye, Robin Trulssen; Osen, Ottar Laurits. (2025) Oceanscape: A graph-based framework for autonomous coastal navigation. Ocean Engineering
    Academic article

2024

  • Wu, Baiheng; Hatledal, Lars Ivar; Madsen, Andreas Nygard; Wang, Tongtong; Brandsæter, Andreas; Osen, Ottar Laurits. (2024) Data Interface for an Interactable Ship Bridge towards Maritime Autonomous Surface Ships at Human-in-the-loop Levels.
    Academic chapter

2023

  • Bjelland, Øystein; Hatledal, Lars Ivar; Steinert, Martin; Bye, Robin Trulssen. (2023) IMPLEMENTATION AND EVALUATION OF AN ARTHROSCOPIC TRACKER SYSTEMI FOR INTRAOPERATIVE MOTION TRACKING AND FORCE REGISTRATION.
    Academic chapter

2022

  • Wang, Tongtong; Skulstad, Robert; Kanazawa, Motoyasu; Hatledal, Lars Ivar; Li, Guoyuan; Zhang, Houxiang. (2022) Adaptive Data-driven Predictor of Ship Maneuvering Motion Under Varying Ocean Environments.
    Academic chapter
  • Zhang, Houxiang; Li, Guoyuan; Hatledal, Lars Ivar; Chu, Yingguang; Ellefsen, André Listou; Han, Peihua; Major, Pierre Yann; Skulstad, Robert; Wang, Tongtong; Hildre, Hans Petter. (2022) A Digital Twin of the Research Vessel Gunnerus for Lifecycle Services: Outlining Key Technologies. IEEE robotics & automation magazine
    Academic article
  • Kanazawa, Motoyasu; Skulstad, Robert; Wang, Tongtong; Li, Guoyuan; Hatledal, Lars Ivar; Zhang, Houxiang. (2022) A Physics-Data Co-Operative Ship Dynamic Model for a Docking Operation. IEEE Sensors Journal
    Academic article
  • Hatledal, Lars Ivar; Fagerhaug, Eirik. (2022) Enhancing SSP creation using sspgen.
    Academic chapter
  • Wang, Tongtong; Hatledal, Lars Ivar; Kanazawa, Motoyasu; Li, Guoyuan; Zhang, Houxiang. (2022) Effect of Ship Propulsion Retrofit on Maneuverability Research Based on Co-simulation.
    Academic chapter
  • Kanazawa, Motoyasu; Hatledal, Lars Ivar; Li, Guoyuan; Zhang, Houxiang. (2022) Co-simulation-based Pre-training of a Ship Trajectory Predictor.
    Academic chapter

2021

  • Wang, Tongtong; Li, Guoyuan; Hatledal, Lars Ivar; Skulstad, Robert; Æsøy, Vilmar; Zhang, Houxiang. (2021) Incorporating Approximate Dynamics Into Data-Driven Calibrator: A Representative Model for Ship Maneuvering Prediction. IEEE Transactions on Industrial Informatics
    Academic article
  • Kanazawa, Motoyasu; Skulstad, Robert; Li, Guoyuan; Hatledal, Lars Ivar; Zhang, Houxiang. (2021) A multiple-output hybrid ship trajectory predictor with consideration for future command assumption. IEEE Sensors Journal
    Academic article
  • Chu, Yingguang; Li, Guoyuan; Hatledal, Lars Ivar; Holmeset, Finn Tore; Zhang, Houxiang. (2021) Coupling of dynamic reaction forces of a heavy load crane and ship motion responses in waves. Ships and Offshore Structures
    Academic article
  • Hatledal, Lars Ivar; Chu, Yingguang; Styve, Arne; Zhang, Houxiang. (2021) Vico: An entity-component-system based co-simulation framework. Simulation modelling practice and theory
    Academic article

2020

  • Hatledal, Lars Ivar; Skulstad, Robert; Li, Guoyuan; Styve, Arne; Zhang, Houxiang. (2020) Co-simulation as a Fundamental Technology for Twin Ships. MIC Journal: Modeling, Identification and Control
    Academic article
  • Hatledal, Lars Ivar; Collonval, Frederic; Zhang, Houxiang. (2020) Enabling Python Driven Co-Simulation Models with PythonFMU.
    Academic chapter

2019

  • Hatledal, Lars Ivar; Styve, Arne; Hovland, Geir; Zhang, Houxiang. (2019) A Language and Platform Independent Co-Simulation Framework Based on the Functional Mock-Up Interface. IEEE Access
    Academic article
  • Hatledal, Lars Ivar; Zhang, Houxiang; Styve, Arne; Hovland, Geir. (2019) FMU-proxy: A Framework for Distributed Access to Functional Mock-up Units.
    Academic chapter

2018

  • Hatledal, Lars Ivar; Zhang, Houxiang; Styve, Arne; Hovland, Geir. (2018) FMI4j: A Software Package for working with Functional Mock-up Units on the Java Virtual Machine.
    Academic chapter
  • Chu, Yingguang; Hatledal, Lars Ivar; Zhang, Houxiang; Æsøy, Vilmar; Ehlers, Sören. (2018) Virtual prototyping for maritime crane design and operations. Journal of Marine Science and Technology
    Academic article
  • Chu, Yingguang; Hatledal, Lars Ivar; Æsøy, Vilmar; Ehlers, Sören; Zhang, Houxiang. (2018) An Object-Oriented Modeling Approach to Virtual Prototyping of Marine Operation Systems Based on Functional Mock-Up Interface Co-Simulation. Journal of Offshore Mechanics and Arctic Engineering
    Academic article

2017

  • Sanfilippo, Filippo; Hatledal, Lars Ivar; Pettersen, Kristin Ytterstad; Zhang, Houxiang. (2017) A Benchmarking Framework for Control Methods of Maritime Cranes Based on the Functional Mockup Interface. IEEE Journal of Oceanic Engineering
    Academic article
  • Hatledal, Lars Ivar; Zhang, Houxiang; Halse, Karl Henning; Hildre, Hans Petter. (2017) Numerical Study for a Catamaran Gripper-Monopile Mechanism of a Novel Offshore Wind Turbine Assembly Installation Procedure.
    Academic chapter

2016

  • Li, Guoyuan; Pedersen, Birger Skogeng; Deng, Yuxiang; Hatledal, Lars Ivar; Zhang, Houxiang. (2016) Towards A Virtual Prototyping Framework for Ship Maneuvering in Offshore Operations.
    Academic chapter
  • Sanfilippo, Filippo; Hatledal, Lars Ivar; Styve, Arne; Pettersen, Kristin Ytterstad; Zhang, Houxiang. (2016) Integrated Flexible Maritime Crane Architecture for the Offshore Simulation Centre AS (OSC): A Flexible Framework for Alternative Maritime Crane Control Algorithms. IEEE Journal of Oceanic Engineering
    Academic article

2015

  • Hatledal, Lars Ivar; Schaathun, Hans Georg; Zhang, Houxiang. (2015) A Software Architecture for Simulation and Visualisation based on the Functional Mock-up Interface and Web Technologies.
    Academic chapter
  • Chu, Yingguang; Hatledal, Lars Ivar; Sanfilippo, Filippo; Æsøy, Vilmar; Zhang, Houxiang; Schaathun, Hans Georg. (2015) Virtual prototyping system for maritime crane design and operation based on functional mock-up interface.
    Academic chapter
  • Sanfilippo, Filippo; Hatledal, Lars Ivar; Zhang, Houxiang; Rekdalsbakken, Webjørn; Pettersen, Kristin Ytterstad. (2015) A wave simulator and active heave compensation framework for demanding offshore crane operations. Canadian Conference on Electrical and Computer Engineering (CCECE)
    Academic article
  • Hatledal, Lars Ivar; Sanfilippo, Filippo; Chu, Yingguang; Zhang, Houxiang. (2015) A Voxel-Based Numerical Method for Computing and Visualising the Workspace of Offshore Cranes.
    Academic chapter
  • Sanfilippo, Filippo; Hatledal, Lars Ivar; Zhang, Houxiang; Fago, Massimiliano; Pettersen, Kristin Ytterstad. (2015) Controlling Kuka Industrial Robots : Flexible Communication Interface JOpenShowVar. IEEE robotics & automation magazine
    Academic article

2014

  • Sanfilippo, Filippo; Hatledal, Lars Ivar; Zhang, Houxiang; Fago, Massimiliano; Pettersen, Kristin Ytterstad. (2014) JOpenShowVar: An open-source cross-platform communication interface to Kuka robots.
    Academic chapter
  • Sanfilippo, Filippo; Hatledal, Lars Ivar; Zhang, Houxiang; Pettersen, Kristin Ytterstad. (2014) A mapping approach for controlling different maritime cranes and robots using ANN.
    Academic chapter
  • Hatledal, Lars Ivar; Sanfilippo, Filippo; Zhang, Houxiang. (2014) JIOP : A Java Intelligent Optimisation and Machine Learning Framework.
    Academic chapter

2013

  • Sanfilippo, Filippo; Hatledal, Lars Ivar; Schaathun, Hans Georg; Pettersen, Kristin Ytterstad; Zhang, Houxiang. (2013) A universal Control architecture for maritime Cranes and robots using Genetic algorithms as a possible mapping approach.
    Academic chapter

Journal publications

  • Espenakk, Erik; Bjørlykhaug, Emil Dale; Midtbø, Anders Ystebakk; Hatledal, Lars Ivar. (2026) On-demand vision-based swing suppression for offshore cranes: An onshore field study. European Journal of Control
    Academic article
  • Hatledal, Lars Ivar. (2025) Ecos: An accessible and intuitive co-simulation framework. Journal of Open Source Software (JOSS)
    Academic article
  • Wang, Tongtong; Li, Guoyuan; Hatledal, Lars Ivar; Skulstad, Robert; Æsøy, Vilmar; Zhang, Houxiang. (2021) Incorporating Approximate Dynamics Into Data-Driven Calibrator: A Representative Model for Ship Maneuvering Prediction. IEEE Transactions on Industrial Informatics
    Academic article
  • Sanfilippo, Filippo; Hatledal, Lars Ivar; Zhang, Houxiang; Rekdalsbakken, Webjørn; Pettersen, Kristin Ytterstad. (2015) A wave simulator and active heave compensation framework for demanding offshore crane operations. Canadian Conference on Electrical and Computer Engineering (CCECE)
    Academic article
  • Hatledal, Lars Ivar; Styve, Arne; Hovland, Geir; Zhang, Houxiang. (2019) A Language and Platform Independent Co-Simulation Framework Based on the Functional Mock-Up Interface. IEEE Access
    Academic article
  • Kanazawa, Motoyasu; Skulstad, Robert; Li, Guoyuan; Hatledal, Lars Ivar; Zhang, Houxiang. (2021) A multiple-output hybrid ship trajectory predictor with consideration for future command assumption. IEEE Sensors Journal
    Academic article
  • Fagerhaug, Eirik Strøm; Hatledal, Lars Ivar; Bye, Robin Trulssen; Osen, Ottar Laurits. (2025) Oceanscape: A graph-based framework for autonomous coastal navigation. Ocean Engineering
    Academic article
  • Chu, Yingguang; Li, Guoyuan; Hatledal, Lars Ivar; Holmeset, Finn Tore; Zhang, Houxiang. (2021) Coupling of dynamic reaction forces of a heavy load crane and ship motion responses in waves. Ships and Offshore Structures
    Academic article
  • Zhang, Houxiang; Li, Guoyuan; Hatledal, Lars Ivar; Chu, Yingguang; Ellefsen, André Listou; Han, Peihua; Major, Pierre Yann; Skulstad, Robert; Wang, Tongtong; Hildre, Hans Petter. (2022) A Digital Twin of the Research Vessel Gunnerus for Lifecycle Services: Outlining Key Technologies. IEEE robotics & automation magazine
    Academic article
  • Sanfilippo, Filippo; Hatledal, Lars Ivar; Zhang, Houxiang; Fago, Massimiliano; Pettersen, Kristin Ytterstad. (2015) Controlling Kuka Industrial Robots : Flexible Communication Interface JOpenShowVar. IEEE robotics & automation magazine
    Academic article
  • Kanazawa, Motoyasu; Skulstad, Robert; Wang, Tongtong; Li, Guoyuan; Hatledal, Lars Ivar; Zhang, Houxiang. (2022) A Physics-Data Co-Operative Ship Dynamic Model for a Docking Operation. IEEE Sensors Journal
    Academic article
  • Sanfilippo, Filippo; Hatledal, Lars Ivar; Styve, Arne; Pettersen, Kristin Ytterstad; Zhang, Houxiang. (2016) Integrated Flexible Maritime Crane Architecture for the Offshore Simulation Centre AS (OSC): A Flexible Framework for Alternative Maritime Crane Control Algorithms. IEEE Journal of Oceanic Engineering
    Academic article
  • Sanfilippo, Filippo; Hatledal, Lars Ivar; Pettersen, Kristin Ytterstad; Zhang, Houxiang. (2017) A Benchmarking Framework for Control Methods of Maritime Cranes Based on the Functional Mockup Interface. IEEE Journal of Oceanic Engineering
    Academic article
  • Hatledal, Lars Ivar; Skulstad, Robert; Li, Guoyuan; Styve, Arne; Zhang, Houxiang. (2020) Co-simulation as a Fundamental Technology for Twin Ships. MIC Journal: Modeling, Identification and Control
    Academic article
  • Chu, Yingguang; Hatledal, Lars Ivar; Zhang, Houxiang; Æsøy, Vilmar; Ehlers, Sören. (2018) Virtual prototyping for maritime crane design and operations. Journal of Marine Science and Technology
    Academic article
  • Chu, Yingguang; Hatledal, Lars Ivar; Æsøy, Vilmar; Ehlers, Sören; Zhang, Houxiang. (2018) An Object-Oriented Modeling Approach to Virtual Prototyping of Marine Operation Systems Based on Functional Mock-Up Interface Co-Simulation. Journal of Offshore Mechanics and Arctic Engineering
    Academic article
  • Hatledal, Lars Ivar; Chu, Yingguang; Styve, Arne; Zhang, Houxiang. (2021) Vico: An entity-component-system based co-simulation framework. Simulation modelling practice and theory
    Academic article

Part of book/report

  • Wu, Baiheng; Hatledal, Lars Ivar; Madsen, Andreas Nygard; Wang, Tongtong; Brandsæter, Andreas; Osen, Ottar Laurits. (2024) Data Interface for an Interactable Ship Bridge towards Maritime Autonomous Surface Ships at Human-in-the-loop Levels.
    Academic chapter
  • Sanfilippo, Filippo; Hatledal, Lars Ivar; Zhang, Houxiang; Fago, Massimiliano; Pettersen, Kristin Ytterstad. (2014) JOpenShowVar: An open-source cross-platform communication interface to Kuka robots.
    Academic chapter
  • Hatledal, Lars Ivar; Schaathun, Hans Georg; Zhang, Houxiang. (2015) A Software Architecture for Simulation and Visualisation based on the Functional Mock-up Interface and Web Technologies.
    Academic chapter
  • Chu, Yingguang; Hatledal, Lars Ivar; Sanfilippo, Filippo; Æsøy, Vilmar; Zhang, Houxiang; Schaathun, Hans Georg. (2015) Virtual prototyping system for maritime crane design and operation based on functional mock-up interface.
    Academic chapter
  • Li, Guoyuan; Pedersen, Birger Skogeng; Deng, Yuxiang; Hatledal, Lars Ivar; Zhang, Houxiang. (2016) Towards A Virtual Prototyping Framework for Ship Maneuvering in Offshore Operations.
    Academic chapter
  • Bjelland, Øystein; Hatledal, Lars Ivar; Steinert, Martin; Bye, Robin Trulssen. (2023) IMPLEMENTATION AND EVALUATION OF AN ARTHROSCOPIC TRACKER SYSTEMI FOR INTRAOPERATIVE MOTION TRACKING AND FORCE REGISTRATION.
    Academic chapter
  • Sanfilippo, Filippo; Hatledal, Lars Ivar; Schaathun, Hans Georg; Pettersen, Kristin Ytterstad; Zhang, Houxiang. (2013) A universal Control architecture for maritime Cranes and robots using Genetic algorithms as a possible mapping approach.
    Academic chapter
  • Hatledal, Lars Ivar; Zhang, Houxiang; Styve, Arne; Hovland, Geir. (2018) FMI4j: A Software Package for working with Functional Mock-up Units on the Java Virtual Machine.
    Academic chapter
  • Hatledal, Lars Ivar; Sanfilippo, Filippo; Chu, Yingguang; Zhang, Houxiang. (2015) A Voxel-Based Numerical Method for Computing and Visualising the Workspace of Offshore Cranes.
    Academic chapter
  • Wang, Tongtong; Skulstad, Robert; Kanazawa, Motoyasu; Hatledal, Lars Ivar; Li, Guoyuan; Zhang, Houxiang. (2022) Adaptive Data-driven Predictor of Ship Maneuvering Motion Under Varying Ocean Environments.
    Academic chapter
  • Sanfilippo, Filippo; Hatledal, Lars Ivar; Zhang, Houxiang; Pettersen, Kristin Ytterstad. (2014) A mapping approach for controlling different maritime cranes and robots using ANN.
    Academic chapter
  • Hatledal, Lars Ivar; Zhang, Houxiang; Styve, Arne; Hovland, Geir. (2019) FMU-proxy: A Framework for Distributed Access to Functional Mock-up Units.
    Academic chapter
  • Hatledal, Lars Ivar; Fagerhaug, Eirik. (2022) Enhancing SSP creation using sspgen.
    Academic chapter
  • Hatledal, Lars Ivar; Sanfilippo, Filippo; Zhang, Houxiang. (2014) JIOP : A Java Intelligent Optimisation and Machine Learning Framework.
    Academic chapter
  • Hatledal, Lars Ivar; Collonval, Frederic; Zhang, Houxiang. (2020) Enabling Python Driven Co-Simulation Models with PythonFMU.
    Academic chapter
  • Wang, Tongtong; Hatledal, Lars Ivar; Kanazawa, Motoyasu; Li, Guoyuan; Zhang, Houxiang. (2022) Effect of Ship Propulsion Retrofit on Maneuverability Research Based on Co-simulation.
    Academic chapter
  • Kanazawa, Motoyasu; Hatledal, Lars Ivar; Li, Guoyuan; Zhang, Houxiang. (2022) Co-simulation-based Pre-training of a Ship Trajectory Predictor.
    Academic chapter
  • Hatledal, Lars Ivar; Zhang, Houxiang; Halse, Karl Henning; Hildre, Hans Petter. (2017) Numerical Study for a Catamaran Gripper-Monopile Mechanism of a Novel Offshore Wind Turbine Assembly Installation Procedure.
    Academic chapter

Teaching

Courses

  • AIS1104 - Automation and mechatronics with project
  • AIS2203 - Computer engineering for Cyber-Physical Systems
  • AIS1003 - Object-oriented programming for cyber-physical systems
  • AIS2901 - Bachelor thesis in engineering
  • AIS4002 - Intelligent Machines

Outreach

2023

  • Conference lecture
    Bjelland, Øystein; Hatledal, Lars Ivar; Steinert, Martin; Bye, Robin Trulssen. (2023) IMPLEMENTATION AND EVALUATION OF AN ARTHROSCOPIC TRACKER SYSTEM FOR INTRAOPERATIVE MOTION TRACKING AND FORCE REGISTRATION. 37th ECMS European Conference on Modelling and Simulation

2015

  • Conference poster
    Sanfilippo, Filippo; Hatledal, Lars Ivar; Pettersen, Kristin Ytterstad. (2015) A Fully-Immersive Hapto-Audio-Visual Framework for Remote Touch. Innovations in Information Technology (IIT), 2015 11th International Conference on

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