MOBILE PHONE-BASED PHOTOGRAMMETRY FOR 3D MODELING OF SHIP HULLS

Authors : Engin KANUN, Murat YAKAR

Pages : 9-16

Doi:10.47512/meujmaf.926505

View : 18 | Download : 10

Publication Date : 2021-06-30

Article Type : Research Paper

Abstract :Currently, maritime transportation constitutes the biggest part of world trade. For this reason, ships have a great importance and are effectively used throughout the world. Shipbuilding and ship repair industries frequently utilize engineering processes such as design, manufacture, repair, research and development, quality and control etc. In all the mentioned processes, digital data and CAD drawings of the ships are regularly used by engineers. While all these documents are usually included in the inventory of most ships, there are cases where these documents are lost or unavailable. Reverse engineering studies allow the reconstruction of digital data and CAD drawings of already existing ships. Ships are structures that are difficult to measure due to their sizes, complex geometries and curvature natures. For this reason, measurements are mostly made by advanced technological devices, not by human hands. Photogrammetry and terrestrial laser scanning are two of the most utilized methods contributing to ship surveys. In this study, a mobile phone-based photogrammetric survey method was utilized with the aim of obtaining the digital CAD data of a boat’s hull. Data acquisition, post-processing, accuracy analysis, and results are presented in the study.
Keywords : 3D modeling, Photogrammetry, Hull modeling, Reverse engineering