Modelling of Marine Icing with Close Range Photogrammetry

Abstract

Installations and vessels operating in the high North in the winter season are likely to be subjected to marine Icing. To date there are no sensor technology available to accurately measure the total weight or volume of the ice. Photogrammetry is a universal 3-D measuring technique applied in a wide range of interdisciplinary fields. Agisoft PhotoScan is a photogrammetry software utilizing Structure From Motion(SFM) algorithm to create accurate 3-D mesh models. Scenes involving objects that are not textured, shiny, or transparent are to be avoided. The surface of marine ice has all of these properties. This thesis will investigate if, despite all recommendations not to, and show that the PhotoScan software is capable of creating an accurate 3-D model of a block of salt water ice. The volume of the ice model was calculated to be within less than 1% of the actual volume of the ice, using PhotoScan software.