MAPPING AT DEPTH: A CASE-STUDY OF DIGITAL VIDEO-FRAME PHOTOGRAMMETRY APPLIED TO UNDERWATER ARCHAEOLOGY

Abstract

This paper presents a case-study of applied digital photogrammetry to record and reconstruct a sunken anchor from a 17th century shipwreck site in Brazil. It describes a straightforward workflow using still frames automatically extracted from video footage, processed with off-the-shelf software, resulting in a highly accurate 1:1 scaled 3D model. The author assess the results in terms of time efficiency, accuracy of the technique, and its applications to underwater archaeology.