• Real-time temporal adaptation of dynamic movement primitives for moving targets 

      Østvik, Andreas; Grøtli, Esten Ingar; Vagia, Marialena; Gravdahl, Jan Tommy (Chapter; Peer reviewed, 2021)
      This work is aimed at extending the standard dynamic movement primitives (DMP) framework to adapt to real-time changes in the task execution time while preserving its style characteristics. We propose an alternative ...
    • ROV Navigation in a Fish Cage with Laser-Camera Triangulation 

      Bjerkeng, Magnus Christian; Kirkhus, Trine; Caharija, Walter; Thielemann, Jens T; Amundsen, Herman Biørn; Ohrem, Sveinung Johan; Grøtli, Esten Ingar (Peer reviewed; Journal article, 2021)
      Aquaculture net cage inspection and maintenance is a central issue in fish farming. Inspection using autonomous underwater vehicles is a promising solution. This paper proposes laser-camera triangulation for pose estimation ...
    • Safe navigation in a coastal environment of multiple surface vehicles under uncertainties: A combined use of potential field constructions and NMPC 

      Tran, Ngo-Quoc-Huy; Prodan, Ionela; Grøtli, Esten Ingar; Lefevre, Laurent (Peer reviewed; Journal article, 2020)
      This paper deals with the motion planning problem for surface vehicles in the presence of varying environmental disturbances. The goal is to steer the vehicles from an initial to a final destination while ensuring connectivity ...
    • Safety and security of drones in the oil and gas industry 

      Johnsen, Stig Ole; Bakken, Trond; Transeth, Aksel Andreas; Holmstrøm, Sture; Merz, Mariann; Grøtli, Esten Ingar; Jacobsen, Sigurd Robert; Storvold, Rune (Chapter, 2020)
      This paper describes safety and security challenges and best practices of the use of drones in the oil and gas industry, with consideration of the harsh weather conditions in the Northern Territories of Norway. We have ...
    • SEATONOMY Design, development and validation of marine autonomous systems and operations 

      Grøtli, Esten Ingar; Reinen, Tor Arne; Grythe, Knut; Transeth, Aksel Andreas; Vagia, Marialena; Bjerkeng, Magnus Christian; Rundtop, Per; Svendsen, Eirik; Rødseth, Ørnulf Jan; Eidnes, Grim (Journal article, 2015)
      The SEATONOMY methodology provides a structured approach for design, development and validation of mobile autonomous maritime operations and systems. The goal is to achieve this by providing system developers of autonomous ...
    • Semiglobal exponential stability of a counter-current and co-current guidance scheme 

      Caharija, Walter; Grøtli, Esten Ingar; Pettersen, Kristin Ytterstad (Journal article; Peer reviewed, 2018)
      A control technique for counter-current and co-current guidance of underactuated marine vehicles is revisited and stronger stability properties are shown. In particular, the stronger property of uniform semiglobal exponential ...
    • Status og potensiale for dronebasert teknologi for naturfare og infrastruktur. Oppsummering av bransjeseminar 13. januar 2015 

      Grøtli, Esten Ingar; Transeth, Aksel Andreas (SINTEF Rapport;, Research report, 2015)
      NIFS (Naturfare, Infrastruktur, Flom og Skred) er et felles satsingsområde mellom etatene Jernbaneverket, Norges vassdrags- og energidirektorat og Statens vegvesen. SINTEF har i samarbeid med NIFS avholdt et bransjeseminar ...
    • Trends in Smart Manufacturing: Role of Humans and Industrial Robots in Smart Factories 

      Evjemo, Linn Danielsen; Gjerstad, Tone Beate; Grøtli, Esten Ingar; Sziebig, Gabor (Peer reviewed; Journal article, 2020)
      Purpose of Review: This paper provides an overview of the role of humans and robots in smart factories, their connection to Industry 4.0, and which progress they make when it comes to related technologies. Recent Findings: ...
    • Vind: a robot self-localization framework 

      Azpiazu, Jon; Bjerkeng, Magnus Christian; Tjønnås, Johannes; Grøtli, Esten Ingar (Chapter, 2016)