Browsing by Author "Geilhufe, Marc"

Now showing items 1-4 of 4

    • 3D Rendering of Shipwrecks from Synthetic Aperture Sonar 

      Lorentzen, Ole Jacob; Hansen, Roy Edgar; Sæbø, Torstein Olsmo; Synnes, Stig Asle Vaksvik; Geilhufe, Marc (2021-10-25)
      Synthetic aperture sonar (SAS) bathymetric mapping provides centimeter-scale horizontal resolution of the seafloor. Typically, SAS data has been visualized as 2D images or gridded 2.5D surfaces, but it can also be plotted ...

    • Comparison of synthetic aperture sonar images and optical images of UXOs from the Skagerrak chemical munitions dumpsite 

      Hansen, Roy Edgar; Geilhufe, Marc; Bakken, Erik Makino; Sæbø, Torstein Olsmo (2019-11-28)
      After World War II chemical munitions were loaded onto large ships and sunk in the Skagerrak Strait in the Norwegian trench, in deep waters between Norway and Denmark. In collaboration with the Norwegian Coastal Administration, ...

    • Multi-phase performance evaluation for modern minehunting systems 

      Midtgaard, Øivind; Warakagoda, Narada Dilp; Davies, Gary; Connors, Warren A.; Geilhufe, Marc (2019-05-10)
      Many NATO navies are in the process of replacing their dedicated minehunting vessels with systems of heterogeneous, unmanned modules. While traditional ship-based assets prosecute sonar contacts in sequence through to ...

    • A Multiscale Wavelet-Based Test for Isotropy of Random Fields on a Regular Lattice 

      Thon, Kevin Otto; Geilhufe, Marc; Percival, Donald B. (2015)
      A test for isotropy of images modeled as stationary or intrinsically stationary random fields on a lattice is developed. The test is based on the wavelet theory, and can operate on the horizontal and vertical scale of ...