Seven case studies implementing 3D spatial and spectral documentation of material cultural heritage were realised in 2015 and 2016. The aim of these case studies is to offer in-depth investigation, enabling a good understanding of selected techniques and processes in 3D spatial and spectral documentation, applied to a particular cultural heritage object or site.
KANTHAROS - FROM A BURIED FRAGMENT TO THE VIRTUAL ARTEFACT
Object of the case study (CS) is a fragmentary clay vessel, a Kantharos (drinking cup), which was unearthed during the excavations at the ancient settlement of Karabournaki (ancient Therme) in the area of Thessaloniki (Greece). The CS regards the visualization of the vase while at the same time it is a typical case of a fragmentary clay vase that offers challenges in terms of its visualisation and reconstruction.
The vase dates in the Archaic period (7th-6th c. B.C.) and although the shape of Kantharos is widespread in ancient Greece, the specific example is unique in terms of its decoration and for not fitting sufficiently into any of the known workshops so far. Regarding the decoration, it has four (4) added snakes (made by separate piece of clay) on the upper part body of the vase. Kantharos is the vase of Dionysos and a typical drinking vase for symposion (social gatherings with food and drink). The decoration points to a ritual vessel that contributes to the knowledge of the life in this area. Its fragmentary condition is challenging also in its completion.
The visualisation of the Kantharos in the form of a 3D model will contribute to the better study and presentation of the vase. It will be based on certain research questions. For the 3D digitisation of the artefact will be employed image based 3D reconstruction methodologies (Structure-From-Motion (SFM) and Dense Multi-View 3D Reconstruction (DMVR) methods). An evaluation will follow the creation of the 3D model in order to check the results for benefit of both cultural heritage and technological sector.
Objective of the case study is to benefit scholars and general public. It will contribute to certain COSCH aims and the final product it may serve as a guide for similar archaeological issues. The visualisation of the Kantharos aims to a better understanding and communication of the cultural heritage.
Recommendation for solution providers as well as end users (PT6): PDF
The project was led by
Dr Despoina Tsiafaki, Director of Research, "Athena": Research & Innovation Center in Information, Communication & Knowledge Technologies (Archaeologist & co-Director of the Karabournaki excavation), Xanthi, Greece
Dr George Pavlidis, Director of Research, "Athena": Research & Innovation Center in Information, Communication & Knowledge Technologies (2D/3D imaging), Xanthi, Greece
Dr Anestis Koutsoudis, Associate Research Fellow, "Athena": Research & Innovation Center in Information, Communication & Knowledge Technologies (3D expert), Xanthi, Greece
Fotis Arnaoutoglou, Scientific Associate, "Athena": Research & Innovation Center in Information, Communication & Knowledge Technologies (3D expert), Xanthi, Greece
Anastasia Michailidou MA, Museologist, Scientific Associate, "Athena": Research & Innovation Center in Information, Communication & Knowledge Technologies (Museologist), Xanthi, Greece
J. Ignacio Murillo, Urbe pro Orbe Patrimonio Cultural (Archaeology, Cult Heritage graphical documentation), Madrid, Spain
Members of the COSCH community coming from different disciplines & institutes will contribute to the evaluation of the 3D model in order to get a global input (Conservation, Cultural Heritage, 3D, Technology).
Digital Techniques for Documenting and Preserving Cultural Heritage
"The essays in this collection are transformative, moving beyond basic collaboration and skilfully contextualizing both scientic knowledge in the humanities and humanities knowledge in the sciences. Doing so not only heightens the quality of the research, but heightens understanding, redrawing traditional lines between disciplines and redening what it means to truly collaborate and to be a scholar in the digital age."-Bill Endres, University of Oklahoma In this unique collection the authors present a wide range of interdisciplinary methods to study, document, and conserve material cultural heritage. The methods used serve as exemplars of best practice with a wide variety of cultural heritage objects having been recorded, examined, and visualised. The objects range in date, scale, materials, and state of preservation and so pose dierent research questions and challenges for digitization, conservation, and ontological representation of knowledge. Heritage science and specialist digital technologies are presented in a way approachable by non-scientists, while a separate technical section provides details of methods and techniques, alongside examples of notable applications of spatial and spectral documentation of material cultural heritage, with selected literature and identication of future research. This book is an outcome of interdisciplinary research and debates conducted by the participants of the COST Action TD1201, Colour and Space in Cultural Heritage, 2012–16, and is an Open Access publication available under a CC BY-NC-ND licence.