Automating Photogrammetry for the 3d Digitisation of Small Artefact Collections

Abstract

<p><strong>Abstract.</strong> The 3D digitisation of precious or delicate cultural heritage artefacts via photogrammetry is highly important for historical preservation purposes. Doing so can help mitigate against events such as natural disasters, war, and tourism damage, whilst enabling access to 3D data for researchers around the globe. While the digitisation of such artefacts offer many significant societal and academic benefits, the process in which data is captured is resource intensive and often results in inaccurate outcomes. This paper presents a novel small object scanner which automates the photogrammetry image acquisition process for the highly detailed and efficient 3D digitisation of cultural heritage artefacts across large museum collections.</p>

Digitization of Physical Models of Rural Architecture

“…Today, the Internet is the primary medium for sharing digital content, where a high-quality user experience depends on fast loading and smooth operation. This depends on the speed of data transfer and the volume of data transferred [3]. Therefore, part of the project involved generalizing the detailed triangular model into a form that kept the resulting file size around 10 MB while not significantly reducing the quality of the geometry and textures.…”

“…This applies both to the planned form of future objects and products (plans in construction or robotic production in industry) and to existing objects. One of the frequent applications of digital copies of existing objects is heritage conservation, that is, the management of historical buildings and smaller items [1], [2], [3]. For such objects, detailed spatial documentation is used for possible reconstruction or restoration [4].…”

Plane Fitting in 3D Reconstruction to Preserve Smooth Homogeneous Surfaces

“…In addition to the manual processing of image properties such as contrast before feeding to the pipeline [ 7 ], the question of how to realize the most automated reconstruction process with the most convenient installations is analysed by numerous surface reconstruction studies [ 21 , 22 , 23 , 24 , 25 ]. Projecting artificial patterns onto the object surface is a common method for homogeneous surface reconstruction, but is susceptible to projector luminosity [ 23 , 24 ], so high-quality scanners and lighting equipment are often required [ 25 ]. Furthermore, accurate projection on complex surfaces must be cumbersome.…”

Ge-conservación Nº19

“…El escaneo 3D mediante luz estructurada y la fotogrametría son dos técnicas empleadas con frecuencia en el registro y la documentación del patrimonio. Ofrecen una excelente precisión geométrica y permiten generar modelos 3D de alta calidad de piezas de pequeña y mediana escala (Bruno et al 2013;Gil-Melitón y Lerma 2018;Morita y Bilmes 2018;Marshall et al 2019).…”