Developing 3D Imaging Programmes--Workflow and Quality Control

Abstract

This paper reports on a successful project for 3D imaging research, digital applications and use of new technologies in the museum. The paper will focus on the development and implementation of a viable workflow for the production of high quality 3D models of museum objects, based on the 3D laser scanning and photogrammetry of selected ancient Egyptian artefacts. The development of a robust protocol for the complete process chain for imaging cultural heritage artefacts, from the acquisition of 2D and/or 3D images to the development of interactive applications for the public audience, was a specific objective of the project. The workflow devised by the university museum team combines reference photography and 3D imaging with a curatorial review of the actual object to its digital counterpart. It also integrates methodologies for managing the accompanying metadata sets to record these activities. As final stage deliverables from the process, the museum is making high quality 3D images of artefacts from its collection available through creation and dissemination of digital 3D multi-platform interactive applications in order to allow remote access and to enhance the Museum's public engagement. The short paper will conclude with practical considerations for a 3D imaging workflow such as time and skills needed, 3D model quality and expectation management.

Automated Low-Cost Photogrammetric Acquisition of 3D Models from Small Form-Factor Artefacts

“…This was anticipated given the improvement in image resolution (12.2 Megapixel DSLR vs. 8 Megapixel smartphone), the greater depth of field (see Section 2.3.1) and the superior optics of the 50 mm macro lens used by the DSLR compared with the built-in 5 mm lens of the smartphone camera. Nevertheless, both are comparable with the performance achieved by the structured light scanner and both compare favourably with the 100 µm errors reported in similar applications with much more expensive laser scanning equipment [47].…”

Extended reality for biomedicine

“…To keep up with emerging trends, research needs, application development, and to curate all types of information, it is imperative that libraries and other institutes create digital collections of 3D data in XR 159 . Various repository workflows and infrastructures have been proposed for metadata collection, access and reuse the raw files, and 3D model generation procedures [160][161][162][163][164][165][166] . However, standard repository solutions for the management of 3D datasets and online access to reuse original 3D data remain to be defined 159 .…”

3D modelling and measurements of historical violins

“…Different imaging technologies are available (laser scanner, photogrammetry, stereo-cameras and so on). The final choice depends on the characteristics of the object to acquire [10]. These different techniques may be merged to improve the quality of the reconstructed models.…”