3D Multispectral Imaging for Cultural Heritage Preservation: The Case Study of a Wooden Sculpture of the Museo Egizio di Torino

Heritage

article

Leila Es Sebar¹  Luca Lombardo²  Paola Buscaglia¹  Tiziana Cavaleri³  Alessandro Lo Giudice⁵  Alessandro Re⁵  Matilde Borla⁷  Sara Aicardi⁸  Sabrina Grassini¹ 

[1] Department of Applied Science and Technology;Department of Electronics and Telecommunications;Centro Conservazione e Restauro “La Venaria Reale”;Dipartimento di Economia, Ingegneria, Società e Impresa, Università degli Studi della Tuscia;Dipartimento di Fisica, Università degli Studi di Torino;Istituto Nazionale di Fisica Nucleare ,(INFN);Soprintendenza Archeologia;Museo Egizio di Torino

关键词: photogrammetry;    multispectral imaging;    data fusion;    3D multispectral model;    digitalization;    cultural heritage;    digital twin;    digital methods;   

DOI  :  10.3390/heritage6030148

学科分类：医学（综合）

来源: mdpi

【 摘 要 】

Digitalization techniques, such as photogrammetry (PG), are attracting the interest of experts in the cultural heritage field, as they enable the creation of three-dimensional virtual replicas of historical artifacts with 2D digital images. Indeed, PG allows for acquiring data regarding the overall appearance of an artifact, its geometry, and its texture. Furthermore, among several image-based techniques exploited for the conservation of works of art, multispectral imaging (MSI) finds great application in the study of the materials of historical items, taking advantage of the different responses of materials when exposed to specific wavelengths. Despite their great usefulness, PG and MSI are often used as separate tools. Integrating radiometric and geometrical data can notably expand the information carried by a 3D model. Therefore, this paper presents a novel research methodology that enables the acquisition of multispectral 3D models, combining the outcomes of PG and MSI (Visible (VIS), Ultraviolet-induced Visible Luminescence (UVL), Ultraviolet-Reflected (UVR), and Ultraviolet-Reflected False Color (UVR-FC) imaging) in a single coordinate system, using an affordable tunable set-up and open-source software. The approach has been employed for the study of two wooden artifacts from the Museo Egizio di Torino to investigate the materials present on the surface and provide information that could support the design of suitable conservation treatments.

【 授权许可】

CC BY