ABSTRACT The combination of photogrammetry (PG) and multispectral imaging (MSI) techniques is today, more than ever, an important issue for the 3D visualization of colourful clay figurines in a digital environment for cultural heritage professionals. This paper presents a research methodology that integrates 2D photographs derived from visible (VIS) radiation, Ultraviolet-induced Visible Luminescence (UVL) and Visible-induced Luminescence (VIL), into 3D reconstructions that allow distinguishing information not visible to the naked eye. The process is carried out using affordable equipment and open-source software. This approach has been used in order to study three colourful clay figurines, that are currently located in the two archaeological museums of Chalkida. The study aims to investigate the original materials, focusing both on their inherent colour properties and on the materials introduced during previous conservation interventions. These findings bring us closer to the accurate management of the visual characteristics of archaeological artifacts, thereby facilitating novel approaches for the implementation of enhanced digital restoration techniques encompassing both chromatic and morphological aspects.
Karamouzas et al. (Mon,) studied this question.