Comparison of 3D acquisition techniques for the digital reconstruction of bowed instruments

Details

Supervisors

Glineur, François ; Ceulemans, Anne-Emmanuelle

Faculty

Ecole polytechnique de Louvain

Degree label

Master [120] : ingénieur civil en mathématiques appliquées, à finalité spécialisée

Abstract

In the end of the 16th century, size standards were set on bowed instruments by conservatories and to fit these new dimensions, some of the ancient instruments were reduced. It is now a hard task to quantify the impact of such a reduction on the morphology of the instruments. Having an accurate 3D numerical representation for this purpose is crucial. Nowadays multiple technologies and their implementations are available to achieve this 3D reconstruction but they differ in price and time needed. More recent and less time consuming technologies such as the optic scan and photogrammetry were compared in this work to industrial and medical computed tomography (CT) scans with a known good accuracy and reached a sub-millimetre distance with them. The iPad pro True depth and LiDAR features for mesh acquisition were also tested.