A Photogrammetry-Based Workflow for the Accurate 3D Construction and Visualization of Museums Assets

Abstract

Nowadays digital replicas of artefacts belonging to the Cultural Heritage (CH) are one of the most promising innovations for museums exhibitions, since they foster new forms of interaction with collections, at different scales. However, practical digitization is still a complex task dedicated to specialized operators. Due to these premises, this paper introduces a novel approach to support non-experts working in museums with robust, easy-to-use workflows based on low-cost widespread devices, aimed at the study, classification, preservation, communication and restoration of CH artefacts. The proposed methodology introduces an automated combination of acquisition, based on mobile equipment and visualization, based on Real-Time Rendering. After the description of devices used along the workflow, the paper focuses on image pre-processing and geometry processing techniques adopted to generate accurate 3D models from photographs. Assessment criteria for the developed process evaluation are illustrated. Tests of the methodology on some effective museum case studies are presented and discussed.

Combining Integrated Informative System and Historical Digital Twin for Maintenance and Preservation of Artistic Assets

“…The final model is 734.5 mm wide, 439.5 mm deep, and 991.5 mm high. In order to obtain a reliable documentation of the current state of the asset [6,52], 120 photos were taken all around the statue, discarding blurred or low-quality photos. Only 98 photos were processed by Metashape Professional (Agisoft) software, reconstructing a model characterized by about 127 k triangles and 63 k vertices (Error!…”

“…It is worth noting that software tools providing an automatic procedure to clean the whole model exist, but it is suggested to check all the features of interest manually so that alterations of the local characteristics of the model are prevented. In order to obtain a reliable documentation of the current state of the asset [6,52], 120 photos were taken all around the statue, discarding blurred or low-quality photos. Only 98 photos were processed by Metashape Professional (Agisoft) software, reconstructing a model characterized by about 127 k triangles and 63 k vertices (Figure 8).…”

Digital Modelling and Accuracy Verification of a Complex Architectural Object Based on Photogrammetric Reconstruction

“…Over the past few years, these new technologies have become essential tools for cultural heritage professionals to analyse, reconstruct, and interpret data. The application of photogrammetric reconstruction ranges from the reconstruction of museum collections [16,17], the documentation of buildings and complexes of buildings [2,18] to the reconstruction of fragments of the historical landscape [19]. Photogrammetric reconstructions are also used in a wide range of architectural modelling work.…”

Histogram Adjustment of Images for Improving Photogrammetric Reconstruction

“…Until recently, photogrammetric reconstruction was available to a narrow community of remote sensing specialists [ 1 , 2 ]. It has become widely available thanks to the development of mobile applications using cameras installed in smartphones [ 3 ].…”