GCH 2018 - Eurographics Workshop on Graphics and Cultural Heritage

Permanent URI for this collection

Vienna, Austria, November 12 -15, 2018
Scanning for Cultural Heritage
CultArc3D_mini: Fully Automatic Zero-Button 3D Replicator
Martin Ritz, Martin Knuth, Pedro Santos, and Dieter W. Fellner
Development of a High Resolution Topography and Color Scanner to Capture Crack Patterns of Paintings
Mathijs J. W. van Hengstum, Tessa T. W. Essers, Willemijn S. Elkhuizen, Dimitra Dodou, Yu Song, Jo M. P. Geraedts, and Joris Dik
Improving Marker-Based Tracking for Augmented Reality in Underwater Environments
Jan Cejka, Marek Zuzi, Panagiotis Agrafiotis, Dimitrios Skarlatos, Fabio Bruno, and Fotis Liarokapis
Atalaya3D: Making Universities' Cultural Heritage Accessible Through 3D Technologies
Francisco Javier Melero, Jorge Revelles, and Maria Luisa Bellido
VR in CH Applications
Virtual Reality (VR) Interactions With Multiple Interpretations of Archaeological Artefacts
Ronan Gaugne, Myrsini Samaroudi, Théophane Nicolas, Jean-Baptiste Barreau, Laurent Garnier, Karina Rodriguez Echavarria, and Valérie Gouranton
VR-assisted Architectural Design in a Heritage Site: the Sagrada Família Case Study
Carlos Andujar, Pere Brunet, Jerónimo Buxareu, Joan Fons, Narcís Laguarda, Jordi Pascual, and Nuria Pelechano
VR Video Storytelling for Intangible Cultural Heritage Preservation
Elmedin Selmanovic, Selma Rizvic, Carlo Harvey, Dusanka Boskovic, Vedad Hulusic, Malek Chahin, and Sanda Sljivo
3D Reconstruction for CH
Towards the Reconstruction of Wide Historical Sites: A Local Graph-based Representation to Resample Gigantic Acquisitions
Arnaud Bletterer, Frédéric Payan, Marc Antonini, and Anis Meftah
Digital Workflow for Creating 3D Puzzles to Engage Audiences in the Interpretation of Archaeological Artefacts
Karina Rodriguez Echavarria and Myrsini Samaroudi
Objective and Subjective Evaluation of Virtual Relighting from Reflectance Transformation Imaging Data
Ruggero Pintus, Tinsae Dulecha, Alberto Jaspe, Andrea Giachetti, Irina Ciortan, and Enrico Gobbetti
Visualization and Visual Analytics for CH
Proxy Painting
Vanessa Lange, Philipp Kurth, Benjamin Keinert, Martin Boss, Marc Stamminger, and Frank Bauer
Visualizing Networks of Maya Glyphs by Clustering Subglyphs
Bartosz Bogacz, Felix Feldmann, Christian Prager, and Hubert Mara
Data Visualization of Decoration Occurrence and Distribution. A Comparative Study of Late Egyptian Funerary Decoration in Thebes
Anja Wutte
Virtual Museums and Virtual Documentation
Evaluation of Multi-Platform Mobile AR Frameworks for Roman Mosaic Augmentation
Jorge C. S. Cardoso and André Belo
A Configurable Design Approach for Virtual Museums
Christina Tsita, Anastasis Sinanis, Nikolaos Dimitriou, Kostas Papachristou, Anastasia Karageorgopoulou, Anastasios Drosou, and Dimitrios Tzovaras
A Social Platform to Support Citizens Reuse of Open 3D Visualisations: a Citizen Science Approach
Renato De Donato, Massimo De Santo, Alberto Negro, Donato Pirozzi, Diletta Rizzolo, Gianluca Santangelo, and Vittorio Scarano
Earthquake Simulation for Ancient Building Destruction
Josep Lluis Fita, Gonzalo Besuievsky, and Gustavo Patow
Digital Documentation for Conservation
Aging Prediction of Cultural Heritage Samples Based on Surface Microgeometry
Irina Mihaela Ciortan, Giacomo Marchioro, Claudia Daffara, Ruggero Pintus, Enrico Gobbetti, and Andrea Giachetti
Multiple Material Layer Visualization for Cultural Heritage Artifacts
Anastasia Moutafidou, Georgios Adamopoulos, Anastasios Drosou, Dimitrios Tzovaras, and Ioannis Fudos
Gloss Calibration and Gloss Gamut Mapping for Material Appearance Reproduction of Paintings
Willemijn S. Elkhuizen, Tessa T. W. Essers, Yu Song, Sylvia C. Pont, Jo M. P. Geraedts, and Joris Dik
Elastic Flattening of Painted Pottery Surfaces
Reinhold Preiner, Stephan Karl, Paul Bayer, and Tobias Schreck
Tools for Multimedia or Museum Installations
Developing and Maintaining a Web 3D Viewer for the CH Community: an Evaluation of the 3DHOP Framework
Marco Potenziani, Marco Callieri, and Roberto Scopigno
Granitic Recumbent Statue Reproduction by a Seven Axes Robotic Milling Machine
Jean-Baptiste Barreau, Joëlle Jouneau, Johnny Mérelle, Loïc Maillard, Yann Bernard, and Laurent Quesnel
Browsing Spatial Photography for Dissemination of Cultural Heritage Research Results using Augmented Models
Florian Niebling, Jonas Bruschke, and Marc Erich Latoschik
Visualization of Orientations of Spatial Historical Photographs
Jonas Bruschke, Florian Niebling, and Markus Wacker
Visualising Dudsbury Hillfort: Using Immersive Virtual Reality to Engage the Public with Cultural Heritage
David John, David Hurst, Paul Cheetham, and Harry Manley
3D Scanning and Digitization
Multi-Light Energy Map
Florian Lardeux, Sylvain Marchand, and Petra Gomez-Krämer
An Investigation of Optimal Light Source Setups for Photometric Stereo Reconstruction of Historical Coins
Simon Brenner, Sebastian Zambanini, and Robert Sablatnig
3D Reconstruction and Transparent Visualization of Indonesian Cultural Heritage from a Single Image
Jiao Pan, Liang Li, Hiroshi Yamaguchi, Kyoko Hasegawa, Fadjar I. Thufail , Bra Mantara, and Satoshi Tanaka
Participatory Co-creation of a Public Sculpture Incorporating 3D Digital Technologies
Karina Rodriguez Echavarria, Karin Janzon, and Jonathan Wright
An Image-based Approach for Detecting Faces Carved in Heritage Monuments
Yu-Kun Lai, Karina Rodriguez Echavarria, Ran Song, and Paul L. Rosin
Virtual Archaeology
Deep Mapping Tarn Hows: Automated Generation of 3D Historic Landscapes
Alexander Reinhold, Ian Gregory, and Paul Rayson
On Combining Epigraphy, TLS, Photogrammetry, and Interactive Media for Heritage Documentation: The Case Study of Djehutihotep's Tomb in Dayr al-Barsha
Roberto de Lima, Toon Sykora, Marleen De Meyer, Harco Willems, and Maarten Vergauwen
Integrated Volume Visualisation of Archaeological Ground Penetrating Radar Data
Alexander Bornik, Mario Wallner, Alois Hinterleitner, Geert Verhoeven, and Wolfgang Neubauer
Integrated Spatio-temporal Documentation and Analysis of Archaeological Stratifications Using the Harris Matrix
Wolfgang Neubauer, Christoph Traxler, Andreas Lenzhofer, and Matthias Kucera
Virtual Restoration of Wooden Artifacts by Non-Rigid 3D Shape Assembly: A Case of the First Solar Boat of King Khufu
Takashi Nemoto, Tetsuya Kobayashi, Takeshi Oishi, Masataka Kagesawa, Hiromasa Kurokochi, Sakuji Yoshimura, Eissa Ziddan, and Mamdouh Taha
New Haven Building Archive: A Database for the Collection, Study, and Communication of Local Built Heritage
Elihu Rubin, Saima Akhtar, Benedict Brown, and Holly Rushmeier
Towards an Automatic 3D Patterns Classification: the GRAVITATE Use Case
Elia Moscoso Thompson, Silvia Biasotti, Giusi Sorrentino, Martina Polig, and Sorin Hermon
Shape Analysis Techniques for the Ayia Irini Case Study
Andreas Scalas, Valentina Vassallo, Michela Mortara, Michela Spagnuolo, and Sorin Hermon

BibTeX (GCH 2018 - Eurographics Workshop on Graphics and Cultural Heritage)
@inproceedings{
10.2312:gch.20181335,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
CultArc3D_mini: Fully Automatic Zero-Button 3D Replicator}},
author = {
Ritz, Martin
 and
Knuth, Martin
 and
Santos, Pedro
 and
Fellner, Dieter W.
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181335}
}
@inproceedings{
10.2312:gch.20181336,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Development of a High Resolution Topography and Color Scanner to Capture Crack Patterns of Paintings}},
author = {
Hengstum, Mathijs J. W. van
 and
Essers, Tessa T. W.
 and
Elkhuizen, Willemijn S.
 and
Dodou, Dimitra
 and
Song, Yu
 and
Geraedts, Jo M. P.
 and
Dik, Joris
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181336}
}
@inproceedings{
10.2312:gch.20181337,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Improving Marker-Based Tracking for Augmented Reality in Underwater Environments}},
author = {
Cejka, Jan
 and
Zuzi, Marek
 and
Agrafiotis, Panagiotis
 and
Skarlatos, Dimitrios
 and
Bruno, Fabio
 and
Liarokapis, Fotis
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181337}
}
@inproceedings{
10.2312:gch.20181338,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Atalaya3D: Making Universities' Cultural Heritage Accessible Through 3D Technologies}},
author = {
Melero, Francisco Javier
 and
Revelles, Jorge
 and
Bellido, Maria Luisa
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181338}
}
@inproceedings{
10.2312:gch.20181339,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Virtual Reality (VR) Interactions With Multiple Interpretations of Archaeological Artefacts}},
author = {
Gaugne, Ronan
 and
Samaroudi, Myrsini
 and
Nicolas, Théophane
 and
Barreau, Jean-Baptiste
 and
Garnier, Laurent
 and
Echavarria, Karina Rodriguez
 and
Gouranton, Valérie
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181339}
}
@inproceedings{
10.2312:gch.20181340,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
VR-assisted Architectural Design in a Heritage Site: the Sagrada Família Case Study}},
author = {
Andujar, Carlos
 and
Brunet, Pere
 and
Buxareu, Jerónimo
 and
Fons, Joan
 and
Laguarda, Narcís
 and
Pascual, Jordi
 and
Pelechano, Nuria
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181340}
}
@inproceedings{
10.2312:gch.20181341,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
VR Video Storytelling for Intangible Cultural Heritage Preservation}},
author = {
Selmanovic, Elmedin
 and
Rizvic, Selma
 and
Harvey, Carlo
 and
Boskovic, Dusanka
 and
Hulusic, Vedad
 and
Chahin, Malek
 and
Sljivo, Sanda
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181341}
}
@inproceedings{
10.2312:gch.20181342,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Towards the Reconstruction of Wide Historical Sites: A Local Graph-based Representation to Resample Gigantic Acquisitions}},
author = {
Bletterer, Arnaud
 and
Payan, Frédéric
 and
Antonini, Marc
 and
Meftah, Anis
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181342}
}
@inproceedings{
10.2312:gch.20181344,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Objective and Subjective Evaluation of Virtual Relighting from Reflectance Transformation Imaging Data}},
author = {
Pintus, Ruggero
 and
Dulecha, Tinsae
 and
Jaspe, Alberto
 and
Giachetti, Andrea
 and
Ciortan, Irina
 and
Gobbetti, Enrico
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181344}
}
@inproceedings{
10.2312:gch.20181343,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Digital Workflow for Creating 3D Puzzles to Engage Audiences in the Interpretation of Archaeological Artefacts}},
author = {
Echavarria, Karina Rodriguez
 and
Samaroudi, Myrsini
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181343}
}
@inproceedings{
10.2312:gch.20181345,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Proxy Painting}},
author = {
Lange, Vanessa
 and
Kurth, Philipp
 and
Keinert, Benjamin
 and
Boss, Martin
 and
Stamminger, Marc
 and
Bauer, Frank
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181345}
}
@inproceedings{
10.2312:gch.20181346,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Visualizing Networks of Maya Glyphs by Clustering Subglyphs}},
author = {
Bogacz, Bartosz
 and
Feldmann, Felix
 and
Prager, Christian
 and
Mara, Hubert
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181346}
}
@inproceedings{
10.2312:gch.20181347,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Data Visualization of Decoration Occurrence and Distribution. A Comparative Study of Late Egyptian Funerary Decoration in Thebes}},
author = {
Wutte, Anja
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181347}
}
@inproceedings{
10.2312:gch.20181348,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Evaluation of Multi-Platform Mobile AR Frameworks for Roman Mosaic Augmentation}},
author = {
Cardoso, Jorge C. S.
 and
Belo, André
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181348}
}
@inproceedings{
10.2312:gch.20181350,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
A Social Platform to Support Citizens Reuse of Open 3D Visualisations: a Citizen Science Approach}},
author = {
Donato, Renato De
 and
Santo, Massimo De
 and
Negro, Alberto
 and
Pirozzi, Donato
 and
Rizzolo, Diletta
 and
Santangelo, Gianluca
 and
Scarano, Vittorio
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181350}
}
@inproceedings{
10.2312:gch.20181351,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Earthquake Simulation for Ancient Building Destruction}},
author = {
Fita, Josep Lluis
 and
Besuievsky, Gonzalo
 and
Patow, Gustavo
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181351}
}
@inproceedings{
10.2312:gch.20181349,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
A Configurable Design Approach for Virtual Museums}},
author = {
Tsita, Christina
 and
Sinanis, Anastasis
 and
Dimitriou, Nikolaos
 and
Papachristou, Kostas
 and
Karageorgopoulou, Anastasia
 and
Drosou, Anastasios
 and
Tzovaras, Dimitrios
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181349}
}
@inproceedings{
10.2312:gch.20181352,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Aging Prediction of Cultural Heritage Samples Based on Surface Microgeometry}},
author = {
Ciortan, Irina Mihaela
 and
Marchioro, Giacomo
 and
Daffara, Claudia
 and
Pintus, Ruggero
 and
Gobbetti, Enrico
 and
Giachetti, Andrea
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181352}
}
@inproceedings{
10.2312:gch.20181353,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Multiple Material Layer Visualization for Cultural Heritage Artifacts}},
author = {
Moutafidou, Anastasia
 and
Adamopoulos, Georgios
 and
Drosou, Anastasios
 and
Tzovaras, Dimitrios
 and
Fudos, Ioannis
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181353}
}
@inproceedings{
10.2312:gch.20181354,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Gloss Calibration and Gloss Gamut Mapping for Material Appearance Reproduction of Paintings}},
author = {
Elkhuizen, Willemijn S.
 and
Essers, Tessa T. W.
 and
Song, Yu
 and
Pont, Sylvia C.
 and
Geraedts, Jo M. P.
 and
Dik, Joris
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181354}
}
@inproceedings{
10.2312:gch.20181355,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Elastic Flattening of Painted Pottery Surfaces}},
author = {
Preiner, Reinhold
 and
Karl, Stephan
 and
Bayer, Paul
 and
Schreck, Tobias
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181355}
}
@inproceedings{
10.2312:gch.20181356,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Developing and Maintaining a Web 3D Viewer for the CH Community: an Evaluation of the 3DHOP Framework}},
author = {
Potenziani, Marco
 and
Callieri, Marco
 and
Scopigno, Roberto
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181356}
}
@inproceedings{
10.2312:gch.20181358,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Browsing Spatial Photography for Dissemination of Cultural Heritage Research Results using Augmented Models}},
author = {
Niebling, Florian
 and
Bruschke, Jonas
 and
Latoschik, Marc Erich
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181358}
}
@inproceedings{
10.2312:gch.20181357,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Granitic Recumbent Statue Reproduction by a Seven Axes Robotic Milling Machine}},
author = {
Barreau, Jean-Baptiste
 and
Jouneau, Joëlle
 and
Mérelle, Johnny
 and
Maillard, Loïc
 and
Bernard, Yann
 and
Quesnel, Laurent
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181357}
}
@inproceedings{
10.2312:gch.20181359,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Visualization of Orientations of Spatial Historical Photographs}},
author = {
Bruschke, Jonas
 and
Niebling, Florian
 and
Wacker, Markus
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181359}
}
@inproceedings{
10.2312:gch.20181360,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Visualising Dudsbury Hillfort: Using Immersive Virtual Reality to Engage the Public with Cultural Heritage}},
author = {
John, David
 and
Hurst, David
 and
Cheetham, Paul
 and
Manley, Harry
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181360}
}
@inproceedings{
10.2312:gch.20181361,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Multi-Light Energy Map}},
author = {
Lardeux, Florian
 and
Marchand, Sylvain
 and
Gomez-Krämer, Petra
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181361}
}
@inproceedings{
10.2312:gch.20181362,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
An Investigation of Optimal Light Source Setups for Photometric Stereo Reconstruction of Historical Coins}},
author = {
Brenner, Simon
 and
Zambanini, Sebastian
 and
Sablatnig, Robert
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181362}
}
@inproceedings{
10.2312:gch.20181363,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
3D Reconstruction and Transparent Visualization of Indonesian Cultural Heritage from a Single Image}},
author = {
Pan, Jiao
 and
Li, Liang
 and
Yamaguchi, Hiroshi
 and
Hasegawa, Kyoko
 and
Thufail, Fadjar I.
 and
Mantara, Bra
 and
Tanaka, Satoshi
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181363}
}
@inproceedings{
10.2312:gch.20181365,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
An Image-based Approach for Detecting Faces Carved in Heritage Monuments}},
author = {
Lai, Yu-Kun
 and
Echavarria, Karina Rodriguez
 and
Song, Ran
 and
Rosin, Paul L.
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181365}
}
@inproceedings{
10.2312:gch.20181364,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Participatory Co-creation of a Public Sculpture Incorporating 3D Digital Technologies}},
author = {
Echavarria, Karina Rodriguez
 and
Janzon, Karin
 and
Wright, Jonathan
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181364}
}
@inproceedings{
10.2312:gch.20181366,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Deep Mapping Tarn Hows: Automated Generation of 3D Historic Landscapes}},
author = {
Reinhold, Alexander
 and
Gregory, Ian
 and
Rayson, Paul
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181366}
}
@inproceedings{
10.2312:gch.20181367,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
On Combining Epigraphy, TLS, Photogrammetry, and Interactive Media for Heritage Documentation: The Case Study of Djehutihotep's Tomb in Dayr al-Barsha}},
author = {
Lima, Roberto de
 and
Sykora, Toon
 and
Meyer, Marleen De
 and
Willems, Harco
 and
Vergauwen, Maarten
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181367}
}
@inproceedings{
10.2312:gch.20181368,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Integrated Volume Visualisation of Archaeological Ground Penetrating Radar Data}},
author = {
Bornik, Alexander
 and
Wallner, Mario
 and
Hinterleitner, Alois
 and
Verhoeven, Geert
 and
Neubauer, Wolfgang
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181368}
}
@inproceedings{
10.2312:gch.20181369,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Integrated Spatio-temporal Documentation and Analysis of Archaeological Stratifications Using the Harris Matrix}},
author = {
Neubauer, Wolfgang
 and
Traxler, Christoph
 and
Lenzhofer, Andreas
 and
Kucera, Matthias
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181369}
}
@inproceedings{
10.2312:gch.20181370,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Virtual Restoration of Wooden Artifacts by Non-Rigid 3D Shape Assembly: A Case of the First Solar Boat of King Khufu}},
author = {
Nemoto, Takashi
 and
Kobayashi, Tetsuya
 and
Oishi, Takeshi
 and
Kagesawa, Masataka
 and
Kurokochi, Hiromasa
 and
Yoshimura, Sakuji
 and
Ziddan, Eissa
 and
Taha, Mamdouh
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181370}
}
@inproceedings{
10.2312:gch.20181371,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
New Haven Building Archive: A Database for the Collection, Study, and Communication of Local Built Heritage}},
author = {
Rubin, Elihu
 and
Akhtar, Saima
 and
Brown, Benedict
 and
Rushmeier, Holly
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181371}
}
@inproceedings{
10.2312:gch.20181372,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Towards an Automatic 3D Patterns Classification: the GRAVITATE Use Case}},
author = {
Thompson, Elia Moscoso
 and
Biasotti, Silvia
 and
Sorrentino, Giusi
 and
Polig, Martina
 and
Hermon, Sorin
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181372}
}
@inproceedings{
10.2312:gch.20181373,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Sablatnig, Robert and Wimmer, Michael
}, title = {{
Shape Analysis Techniques for the Ayia Irini Case Study}},
author = {
Scalas, Andreas
 and
Vassallo, Valentina
 and
Mortara, Michela
 and
Spagnuolo, Michela
 and
Hermon, Sorin
}, year = {
2018},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {
10.2312/gch.20181373}
}

Browse

Recent Submissions

Now showing 1 - 40 of 40
  • Item
    Frontmatter: Eurographics Workshop on Graphics and Cultural Heritage
    (The Eurographics Association, 2018) Sablatnig, Robert; Wimmer, Michael; Sablatnig, Robert and Wimmer, Michael
  • Item
    CultArc3D_mini: Fully Automatic Zero-Button 3D Replicator
    (The Eurographics Association, 2018) Ritz, Martin; Knuth, Martin; Santos, Pedro; Fellner, Dieter W.; Sablatnig, Robert and Wimmer, Michael
    3D scanning and 3D printing are two rapidly evolving domains, both generating results with a huge and growing spectrum of applications. Especially in Cultural Heritage, a massive and increasing amount of objects awaits digitization for various purposes, one of them being replication. Yet, current approaches to optical 3D digitization are semi-automatic at best and require great user effort whenever high quality is desired. With our solution we provide the missing link between both domains, and present a fully automatic 3D object replicator which does not require user interaction. The system consists of our photogrammetric 3D scanner CultArc3D_mini that captures an optimal image set for 3D geometry and texture reconstruction and even optical material properties of objects in only minutes, a conveyor system for automatic object feed-in and -out, a 3D printer, and our sensor-based process flow software that handles every single process step of the complex sequence from image acquisition, sensor-based object transportation, 3D reconstruction involving different kinds of calibrations, to 3D printing of the resulting virtual replica immediately after 3D reconstruction. Typically, one-button machines require the user to start the process by interacting over a user interface. Since positioning and pickup of objects is automatically registered, the only thing left for the user to do is placing an object at the entry and retrieving it from the exit after scanning. Shortly after, the 3D replica can be picked up from the 3D printer. Technically, we created a zero-button 3D replicator that provides high throughput digitization in 3D, requiring only minutes per object, and it is publicly showcased in action at 3IT Berlin.
  • Item
    Development of a High Resolution Topography and Color Scanner to Capture Crack Patterns of Paintings
    (The Eurographics Association, 2018) Hengstum, Mathijs J. W. van; Essers, Tessa T. W.; Elkhuizen, Willemijn S.; Dodou, Dimitra; Song, Yu; Geraedts, Jo M. P.; Dik, Joris; Sablatnig, Robert and Wimmer, Michael
    The aging of paintings is inevitable and over the years degradation occurs due to exposure to a variety of environmental influences. One of these degradations is craquelure, fracture patterns in the paint. 3D imaging techniques offer opportunities to capture the surface of a painting and these patterns at high resolution. In this paper we present a 3D scanner that is able to capture surface topography and color of oil paintings at high resolution utilizing fringe-encoded stereo imaging scanning system. The scanner is capable of automated capture of an area of 1x1m2, capturing a painting at a spatial resolution of 7 micron and a depth accuracy of 34 microns. Scanning at this resolution creates potential research opportunities for documentation and monitoring oil paintings under its environmental influences. A scan was made of 'Girl with a Pearl Earring' (c.1665), painted by Johannes Vermeer, which exhibits fine craquelure patterns. The scanner is able to capture the painting of 39x44.5 cm within 2 hours with a tile overlap of 25%. The results showed that the craquelure has more often a ridge-shaped profile instead of the expected inward valleys. The documentation of these variations in crack profiles create interesting paths for future research.
  • Item
    Improving Marker-Based Tracking for Augmented Reality in Underwater Environments
    (The Eurographics Association, 2018) Cejka, Jan; Zuzi, Marek; Agrafiotis, Panagiotis; Skarlatos, Dimitrios; Bruno, Fabio; Liarokapis, Fotis; Sablatnig, Robert and Wimmer, Michael
    Underwater sites are a challenging environment for augmented reality. Images taken under water are degraded in several ways, most importantly they are affected by unbalanced colors due to uneven absorption of light in each color channel, blurring and desaturation caused by turbidity, or noise due to the presence of larger organisms, plants, or bubbles. In this paper, we introduce a new method based on white balancing that enhances underwater images to improve the results of detection of markers. We compare this method with several image enhancement methods, and evaluate their performance when applied to the problem of detecting markers under water. Our results show that our method improves the detection in underwater environments while keeping the computation time low.
  • Item
    Atalaya3D: Making Universities' Cultural Heritage Accessible Through 3D Technologies
    (The Eurographics Association, 2018) Melero, Francisco Javier; Revelles, Jorge; Bellido, Maria Luisa; Sablatnig, Robert and Wimmer, Michael
    This work was carried out over the past eight years through the Atalaya3D project, which aims to make the cultural heritage of the ten public Andalusian universities accessible. Since 2010, the project has been a pioneer in the field of 3D scanning of sculptures and historical sites, opening up restricted areas virtually through 3D web displays. Moreover, in addition to the website, a mobile app allows visitors to browse these institutions' vast heritage and examine it before visiting the campus in a 3D environment. More than 70 artworks and historical buildings have been accurately scanned using the latest 3D scanning technologies, so that we now have the geometry and colour of the pieces documented in detail. QR codes make it easier to reach the relevant information about our universities' heritage via any mobile device (phone or tablet).
  • Item
    Virtual Reality (VR) Interactions With Multiple Interpretations of Archaeological Artefacts
    (The Eurographics Association, 2018) Gaugne, Ronan; Samaroudi, Myrsini; Nicolas, Théophane; Barreau, Jean-Baptiste; Garnier, Laurent; Echavarria, Karina Rodriguez; Gouranton, Valérie; Sablatnig, Robert and Wimmer, Michael
    Increasingly, the incorporation of 3D printed artefacts into Virtual Reality (VR) and Augmented Reality (AR) experiences is of interest to Cultural Heritage professionals. This is because virtual environments, by themselves, cannot convey information such as the physical properties of artefacts within the environments. This paper presents a methodology for the development of VR experiences which incorporate 3D replicas of artefacts as user interfaces. The methodology is applied on the development of an experience to present various interpretations of an urn which was found at the edge of a cliff on the south east coastal area of the United Kingdom in 1910. In order to support the understanding of the multiple interpretations of this artefact, the system deploys a virtual environment and a physical replica to allow users to interact with the artefacts and the environment. Feedback from heritage users suggests VR technologies along with digitally fabricated replicas can meaningfully engage audiences with multiple interpretations of cultural heritage artefacts.
  • Item
    VR-assisted Architectural Design in a Heritage Site: the Sagrada Família Case Study
    (The Eurographics Association, 2018) Andujar, Carlos; Brunet, Pere; Buxareu, Jerónimo; Fons, Joan; Laguarda, Narcís; Pascual, Jordi; Pelechano, Nuria; Sablatnig, Robert and Wimmer, Michael
    Virtual Reality (VR) simulations have long been proposed to allow users to explore both yet-to-built buildings in architectural design, and ancient, remote or disappeared buildings in cultural heritage. In this paper we describe an on-going VR project on an UNESCO World Heritage Site that simultaneously addresses both scenarios: supporting architects in the task of designing the remaining parts of a large unfinished building, and simulating existing parts that define the environment that new designs must conform to. The main challenge for the team of architects is to advance towards the project completion being faithful to the original Gaudí's project, since many plans, drawings and plaster models were lost. We analyze the main requirements for collaborative architectural design in such a unique scenario, describe the main technical challenges, and discuss the lessons learned after one year of use of the system.
  • Item
    VR Video Storytelling for Intangible Cultural Heritage Preservation
    (The Eurographics Association, 2018) Selmanovic, Elmedin; Rizvic, Selma; Harvey, Carlo; Boskovic, Dusanka; Hulusic, Vedad; Chahin, Malek; Sljivo, Sanda; Sablatnig, Robert and Wimmer, Michael
    Interactive digital storytelling has become a popular method for virtual cultural heritage presentations. Combinations of stories and 3D virtual reconstructions are attractive for the audience and have high edutainment values. In this paper we investigate if 360 degrees VR videos further contribute to user immersion in the preservation of intangible cultural heritage. It describes a case study of the Mostar bridge diving project, aimed to present and preserve the bridge diving tradition from the Old Bridge in Mostar, Bosnia and Herzegovina. It is a virtual reality application which enables the user to virtually jump off the bridge after watching 360 degrees video stories about its history and the bridge diving tradition and upon successfully completing the quiz evaluation of the knowledge gained from the stories. The user experience evaluation study shows that our method was successful in preserving a form of intangible heritage and posits suggestions that can be used in developing an intangible heritage preservation framework.
  • Item
    Towards the Reconstruction of Wide Historical Sites: A Local Graph-based Representation to Resample Gigantic Acquisitions
    (The Eurographics Association, 2018) Bletterer, Arnaud; Payan, Frédéric; Antonini, Marc; Meftah, Anis; Sablatnig, Robert and Wimmer, Michael
    Nowadays, LiDAR scanners are able to digitize very wide historical sites, leading to point clouds composed of billions of points. These point clouds are able to describe very small objects or elements disseminated in these sites, but also exhibit numerous defects in terms of sampling quality. Moreover, they sometimes contain too many samples to be processed as they are. In this paper, we propose a local graph-based structure to deal with the set of LiDAR acquisitions of a digitization campaign. Each acquisition is considered as a graph representing the local behavior of the captured surface. Those local graphs are then connected together to obtain a single and global representation of the original scene. This structure is particularly suitable for resampling gigantic points clouds. We show how we can reduce the number of points drastically while preserving the visual quality of large and complex sites, whatever the number of acquisitions.
  • Item
    Objective and Subjective Evaluation of Virtual Relighting from Reflectance Transformation Imaging Data
    (The Eurographics Association, 2018) Pintus, Ruggero; Dulecha, Tinsae; Jaspe, Alberto; Giachetti, Andrea; Ciortan, Irina; Gobbetti, Enrico; Sablatnig, Robert and Wimmer, Michael
    Reflectance Transformation Imaging (RTI) is widely used to produce relightable models from multi-light image collections. These models are used for a variety of tasks in the Cultural Heritage field. In this work, we carry out an objective and subjective evaluation of RTI data visualization. We start from the acquisition of a series of objects with different geometry and appearance characteristics using a common dome-based configuration. We then transform the acquired data into relightable representations using different approaches: PTM, HSH, and RBF. We then perform an objective error estimation by comparing ground truth images with relighted ones in a leave-one-out framework using PSNR and SSIM error metrics. Moreover, we carry out a subjective investigation through perceptual experiments involving end users with a variety of backgrounds. Objective and subjective tests are shown to behave consistently, and significant differences are found between the various methods. While the proposed analysis has been performed on three common and state-of-the-art RTI visualization methods, our approach is general enough to be extended and applied in the future to new developed multi-light processing pipelines and rendering solutions, to assess their numerical precision and accuracy, and their perceptual visual quality.
  • Item
    Digital Workflow for Creating 3D Puzzles to Engage Audiences in the Interpretation of Archaeological Artefacts
    (The Eurographics Association, 2018) Echavarria, Karina Rodriguez; Samaroudi, Myrsini; Sablatnig, Robert and Wimmer, Michael
    3D physical puzzles are typically used to engage audiences in the interpretation of archaeological artefacts in a museum exhibition. The reason for this is that a puzzle can be seen as a game but also as a complex activity that archaeologists undertake to re-assemble fragments. The contribution of this paper is a novel digital worfklow for the design and fabrication of 3D heritage puzzles. The input to the workflow is an authentic artefact from a heritage collection, which is then digitised using technologies such as 3D scanning and 3D modelling. Thereafter, a puzzle generator produces the 3D puzzle pieces using a cell fracture algorithm and generates a set of puzzle pieces (female) and a single core piece (male) for fabrication. Finally, the pieces are fabricated using 3D printing technology and post-processed to facilitate the puzzle assembly. To demonstrate the workflow, we deploy the proposed method to create a 3D puzzle of an artefact, the Saltdean urn, for the Archaeological Gallery of the Brighton Museum and Art Gallery. The significance of this research is that it eases the task of creating puzzle-like activities and maintaining them within a busy museum gallery.
  • Item
    Proxy Painting
    (The Eurographics Association, 2018) Lange, Vanessa; Kurth, Philipp; Keinert, Benjamin; Boss, Martin; Stamminger, Marc; Bauer, Frank; Sablatnig, Robert and Wimmer, Michael
    For archaeologists it is often desireable to present statues in their original coloration. With projection mapping real-world surfaces are augmented by digital content to create compelling alterations of the scene's visual appearance without actually altering or even damaging the object. While there are frequent advances in projection quality, content creation is still a chal- lenging and often unintuitive task, especially for non-experts. In our presented system we combine the advantages of digital content creation such as rapid prototyping with the convenience of an analog workflow. Users paint on smaller versions of the projection mapping target, employing real-world brushes and pencils, while the results are presented live on its large counter- part. We further demonstrate the integration of our system into a state-of-art game engine. By leveraging a powerful rendering and material workflow we make creating compelling materials and lighting situations an intuitive experience.
  • Item
    Visualizing Networks of Maya Glyphs by Clustering Subglyphs
    (The Eurographics Association, 2018) Bogacz, Bartosz; Feldmann, Felix; Prager, Christian; Mara, Hubert; Sablatnig, Robert and Wimmer, Michael
    Deciphering the Maya writing is an ongoing process that has already started in the early 19th century. Among the reasons why Maya hieroglyphic script and language are still undeciphered are inexpertly-created drawings of Maya writing systems resulting in a large number of misinterpretations concerning the contents of these glyphs. As a consequence, the decipherment of Maya writing systems has experienced several setbacks. Modern research in the domain of cultural heritage requires a maximum amount of precision in capturing and analyzing artifacts so that scholars can work on - preferably - unmodified data as much as possible. This work presents an approach to visualize similar Maya glyphs and parts thereof and enable discovering novel connections between glyphs based on a machine learning pipeline. The algorithm is demonstrated on 3D scans from sculptured monuments, which have been filtered using a Multiscale Integral Invariant Filter (MSII) and then projected as a 2D image. Maya glyphs are segmented from 2D images using projection profiles to generate a grid of columns and rows. Then, the glyphs themselves are segmented using the random walker approach, where background and foreground is separated based on the surface curvature of the original 3D surface. The retrieved subglyphs are first clustered by their sizes into a set of common sizes. For each glyph a feature vector based on Histogram of Gradients (HOG) is computed and used for a subsequent hierarchical clustering. The resultant clusters of glyph parts are used to discover and visualize connections between glyphs using a force directed network layout.
  • Item
    Data Visualization of Decoration Occurrence and Distribution. A Comparative Study of Late Egyptian Funerary Decoration in Thebes
    (The Eurographics Association, 2018) Wutte, Anja; Sablatnig, Robert and Wimmer, Michael
    Decoration in Ancient Egyptian funerary monuments represents an important part of the monuments layout. Beside scenes displaying the owner, scenes of daily life, fabrication, offerings and hieroglyphic texts are found. Not only topics of self-presentation but also decoration for the translation to the afterlife were predominant. Therefore, this paper suggests approaches to analyze distribution and occurrence of decorations of several ancient monuments of the same style, with data visualization and quantitative methods. As a case study ancient Egyptian funerary monuments of High Officials from the Late Period, twenty-fifth to twenty-sixth dynasty, were studied. The decorative scenes were categorized and tagged in terms of their content. The positions in the monument were highlighted and included in abstracted 3-dimensional models. This computational implementation offers users to search for decoration categories, highlight, locate and finally compare the position of a scene between the monuments. The visualized data include the position and orientation of a categorized scene in the monument, their occurrence and distribution among the analyzed monuments. In a further step the analysis data was studied statistically in order to be able to query detailed results of the prevalence, distribution and preservation of decorations and specific scenes. Both introduced solutions provide a user friendly information interface to visualize, compare and request quantitative data.
  • Item
    Evaluation of Multi-Platform Mobile AR Frameworks for Roman Mosaic Augmentation
    (The Eurographics Association, 2018) Cardoso, Jorge C. S.; Belo, André; Sablatnig, Robert and Wimmer, Michael
    Augmented Reality (AR) development frameworks have different recognition performance on different kinds of target images. In this work, we studied AR frameworks applied in the context of outdoor Roman mosaic ruins with the final aim of developing a multi-platform mobile AR application. We started by analysing the documented features of existing frameworks to determine the feasible ones. This resulted in the selection of three frameworks: CraftAR, PixLive, and Wikitude. We then experimentally evaluated the performance of the target recognition features against real mosaics by measuring the recognition delay, minimum required target area, visual alignment and visual stability. Results indicate a good recognition rate for CraftAR and a poor recognition rate for Wikitude. CraftAR showed better recognition delay and visual stability, while PixLive showed better minimum required target area and visual alignment.
  • Item
    A Social Platform to Support Citizens Reuse of Open 3D Visualisations: a Citizen Science Approach
    (The Eurographics Association, 2018) Donato, Renato De; Santo, Massimo De; Negro, Alberto; Pirozzi, Donato; Rizzolo, Diletta; Santangelo, Gianluca; Scarano, Vittorio; Sablatnig, Robert and Wimmer, Michael
    There is a growing interest in the world of Open Data, with many initiatives in the Cultural Heritage field. Platforms like Europeana, archive.org, Open Heritage by Google are only few examples of on-line catalogues full of open artefacts published with various formats. It is a new and promising way to engage public, such as, students, citizens, non-profit organisations. This paper faces the question of how to help audience in reusing Open 3D models and other artefacts available on Open Cultural Heritage repositories. The idea is to provide a Social Platform named SPOD where citizens can visualise artefacts, share and comment with others in a social way to increase understanding, awareness and engagement in cultural heritage. The foundation is the Datalet-Ecosystem Provider (DEEP), an open source, extensible, scalable, and Edge-centric visualisation architecture to support reuse of visualisations of Open Data in Cultural Heritage. It consists of reusable, dynamic and interactive visualizations named datalets. It includes a variety of visualisations, charts, geographical maps and 3D visualisations. Datalets can be generated and embedded in any web-page as well. SPOD exploits the DEEP architecture to support users within the platform in generating visualisations of Open artefacts, reuse and share them within discussions.
  • Item
    Earthquake Simulation for Ancient Building Destruction
    (The Eurographics Association, 2018) Fita, Josep Lluis; Besuievsky, Gonzalo; Patow, Gustavo; Sablatnig, Robert and Wimmer, Michael
    Research on seismic simulations has been focused mainly on methodologies specially tailored for civil engineering. On the other hand, we have detected a certain lack of this kind of tools for interactive cultural heritage applications, where speed and plausibility are the main requirements to satisfy. We have designed a tool that allows to parameterize and recreate real earthquakes in an accurate, but simple way. Furthermore, we have focused our efforts on those users without much technical experience in geology or seismic simulation, such as historians, art historians, museum curators and other similar stakeholders. We have performed a series of tests over a set of ancient masonry buildings such as walls with their respective battlements, houses and a Romanesque church with structural simulation enabled, thus, allowing the coupling between the earthquake being simulated and the objects of interest. We show the feasibility of including earthquake simulations and structural stability into historical studies for helping the professionals to understand better those events of the past where an earthquake took place.
  • Item
    A Configurable Design Approach for Virtual Museums
    (The Eurographics Association, 2018) Tsita, Christina; Sinanis, Anastasis; Dimitriou, Nikolaos; Papachristou, Kostas; Karageorgopoulou, Anastasia; Drosou, Anastasios; Tzovaras, Dimitrios; Sablatnig, Robert and Wimmer, Michael
    Virtual Museums (VM) are widely used to preserve and to disseminate cultural heritage to the audience, due to the existing evidence that they can enhance the interest on cultural heritage content, while reinforcing motivation for a real museum visit. A variety of technologies are being used including Virtual Reality (VR), to display cultural heritage objects (CHOs) and related information, in order to offer enjoyable and immersive experiences to the visitors. Additionally, educational aspects of VMs are being explored, due to their inheritance from physical museums, which are educational institutions, among their other roles. Innovative approaches such as authoring tools for the creation of VMs have been introduced in order to fulfil the variant needs of field specialist, audience and educators. The diversity of contexts where a VM can be used, require the creation of open access tools to form customizable VMs for every need. This study aims to present a configurable design approach for the creation of VR museums. The goal is to disseminate the virtual artefacts and introduce them in an appealing way to the audience, the field experts and conservators, through VR experiences. The current version of the VM, allows the curators to dynamically insert objects in the virtual space along with their metadata and measurements derived from various scanning processes. The proposed design approach can support the structure of an open access platform for the creation of immersive VM exhibitions.
  • Item
    Aging Prediction of Cultural Heritage Samples Based on Surface Microgeometry
    (The Eurographics Association, 2018) Ciortan, Irina Mihaela; Marchioro, Giacomo; Daffara, Claudia; Pintus, Ruggero; Gobbetti, Enrico; Giachetti, Andrea; Sablatnig, Robert and Wimmer, Michael
    A critical and challenging aspect for the study of Cultural Heritage (CH) assets is related to the characterization of the materials that compose them and to the variation of these materials with time. In this paper, we exploit a realistic dataset of artificially aged metallic samples treated with different coatings commonly used for artworks' protection in order to evaluate different approaches to extract material features from high-resolution depth maps. In particular, we estimated, on microprofilometric surface acquisitions of the samples, performed at different aging steps, standard roughness descriptors used in materials science as well as classical and recent image texture descriptors. We analyzed the ability of the features to discriminate different aging steps and performed supervised classification tests showing the feasibility of a texture-based aging analysis and the effectiveness of coatings in reducing the surfaces' change with time.
  • Item
    Multiple Material Layer Visualization for Cultural Heritage Artifacts
    (The Eurographics Association, 2018) Moutafidou, Anastasia; Adamopoulos, Georgios; Drosou, Anastasios; Tzovaras, Dimitrios; Fudos, Ioannis; Sablatnig, Robert and Wimmer, Michael
    Material aging has a significant effect on the appearance of cultural heritage objects. These aging effects depend on material composition, object usage and weathering conditions but also on physical and chemical substance parameters. Some types of changes in the materials underneath the visible layers can also be detected and subsequently simulated. Furthermore, recent 3D printing technology enables exporting 3D objects with transparency information. We report on the development of software tools for visualization of material aging for artwork objects that can be used by curators and archaeologists to understand the nature of aging and prevent it with minimal preservation work.
  • Item
    Gloss Calibration and Gloss Gamut Mapping for Material Appearance Reproduction of Paintings
    (The Eurographics Association, 2018) Elkhuizen, Willemijn S.; Essers, Tessa T. W.; Song, Yu; Pont, Sylvia C.; Geraedts, Jo M. P.; Dik, Joris; Sablatnig, Robert and Wimmer, Michael
    Being able to link captured material characteristics and fabricable material appearance attributes is important for creating life-like reproductions. In this paper we propose a method for gloss calibration, and an approach for gloss gamut mapping, as part of an integrated approach for color, topography and gloss reproduction. For gloss calibration, gloss calibration targets were printed in the primary printing colors (CMYK and White), with uniform gloss in equal distant gloss levels. These targets were scanned using the proposed gloss scanner. To create the gloss gamut map, a monotonic curve was fitted to the mean gloss scan values at different gloss levels. Analysis of fitted curves indicated that the gloss mapping is independent of the diffuse colors. As a case study, the painting 'Fruit Still Life' by Cornelis de Heem was scanned, and the measured gloss was mapped to printable gloss levels using the relation described by the fitted curve. The printed result shows good correspondence to the painting's appearance, with clearly distinguishable gloss features for the in-gamut glass values.
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    Elastic Flattening of Painted Pottery Surfaces
    (The Eurographics Association, 2018) Preiner, Reinhold; Karl, Stephan; Bayer, Paul; Schreck, Tobias; Sablatnig, Robert and Wimmer, Michael
    Generating flat images from paintings on curved surfaces is an important task in Archaeological analysis of ancient pottery. It allows comparing styles and painting techniques, e.g, for style and workshop attribution, and serves as basis for domain publications which typically use 2d images. To obtain such flat images from scanned textured 3d models of the pottery objects, current practice is to perform so-called rollouts using approximating shape primitives like cones or spheres, onto which the mesh surfaces are projected. While this process provides in intuitive deformation metaphor for the users, it naturally introduces unwanted distortions in the mapping of the surface, especially for vessels with high-curvature profiles. In this work, we perform an elastic flattening of these projected meshes, where stretch energy is minimized by simulating a physical relaxation process on a damped elastic spring model. We propose an intuitive contraction-directed physical setup which allows for an efficient relaxation while ensuring a controlled convergence. Our work has shown to produce images of significantly improved suitability for domain experts' tasks like interpretation, documentation and attribution of ancient pottery.
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    Developing and Maintaining a Web 3D Viewer for the CH Community: an Evaluation of the 3DHOP Framework
    (The Eurographics Association, 2018) Potenziani, Marco; Callieri, Marco; Scopigno, Roberto; Sablatnig, Robert and Wimmer, Michael
    3DHOP (3D Heritage On-line Presenter) has been released 4 years ago, as an open-source framework for the creation of interactive visualization of 3D content on the web, aimed at the CH field. Transforming a research tool into a software ''product'' usable by the heterogeneous CH community is not a simple task and requires a significant amount of resources plus a specific design. This work presents the evolution of the 3DHOP system, and the complex relationship with its community of users, made of content creators, CH experts and general public. We will discuss the new features introduced, as well as the design and implementation strategy employed to maintain the software and make it usable by developers. We will evaluate the effectiveness of the platform by illustrating some of the applications built with 3DHOP either internally or by external users, as well as by presenting the results of a survey aimed at gathering the opinions and suggestions of the user community.
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    Browsing Spatial Photography for Dissemination of Cultural Heritage Research Results using Augmented Models
    (The Eurographics Association, 2018) Niebling, Florian; Bruschke, Jonas; Latoschik, Marc Erich; Sablatnig, Robert and Wimmer, Michael
    Both digital and physical 3D models of buildings as well as historical photographs of architecture are used for a wide range of needs, from research in humanities and information technologies, museum contexts and library studies, to touristic applications. Spatially oriented photographs play an important role in visualizing and browsing contemporary as well as historical architecture, starting with the ground-breaking Photo Tourism project [SSS06]. We present a technique to combine physical, 3D-printed models of buildings with spatially registered historical photographic documents in a hand-held Augmented Reality (AR) environment. Users are enabled to spatially explore historical views of architecture by selecting photos from a collection of images, which are then utilized as textures for the physical model rendered on their respective mobile device. We compare different methods to spatially select photos registered to a physical model in hand-held AR.
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    Granitic Recumbent Statue Reproduction by a Seven Axes Robotic Milling Machine
    (The Eurographics Association, 2018) Barreau, Jean-Baptiste; Jouneau, Joëlle; Mérelle, Johnny; Maillard, Loïc; Bernard, Yann; Quesnel, Laurent; Sablatnig, Robert and Wimmer, Michael
    Facing the sea, the rocks sculpted by the "Abbé Fouré" at the "Pointe du Christ" and the "Pointe de la Haie" in Rothéneuf (Brittany, France) attract many visitors. Winds, rains and sea spray erode each day a little more the sculptures carved in granite more than a century ago. In order to preserve the heritage, the "Association des Amis de l'Oeuvre de l'Abbé Fouré" tried to start an innovative project: recreate a statue sculpted by the "Ermite of Rothéneuf" at the end of the 19th century thanks to 3D technologies and robotics. With a first 3D scanning of the sculpture of the "Pointe du Christ", a stonecutters' company was approached to reproduce identically this recumbent statue, identified as John IV, Duke of Brittany. Thanks to a robotic milling machine working on seven axes, by cutting layers in the granite at each passage, the company realized 60% of the work in less than a month. Then, a sculptor of the company was responsible, from documents collected by the association, to give the granite block the features of the original recumbent statue. This replica is currently the centerpiece of several French exhibitions dedicated to the general public.
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    Visualization of Orientations of Spatial Historical Photographs
    (The Eurographics Association, 2018) Bruschke, Jonas; Niebling, Florian; Wacker, Markus; Sablatnig, Robert and Wimmer, Michael
    Historical imagery are an important basis for research in Digital Humanities (DH). Especially art and architectural historians rely on historical photographs that are provided by online media repositories. In general, querying those image repositories is based on metadata. Unfortunately, these are often incomplete, imprecise, or wrong, impeding the search process. Using photogrammetric methods to spatialize the historical imagery, keyword-based search is enhanced by time- and location-dependent browsing methods within a four-dimensional model. The interactive, spatial presentation and exploration of these images opens up new potentials to answer research questions related to art and architectural historical science. One important aspect of the work presented here is to provide visualization methods that present statistical information about image positions, and in particular camera orientations. In addition to heat maps, we present adaptations of methods from flow field visualization to enable the exploration of camera orientations in large numbers of photographic images.
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    Visualising Dudsbury Hillfort: Using Immersive Virtual Reality to Engage the Public with Cultural Heritage
    (The Eurographics Association, 2018) John, David; Hurst, David; Cheetham, Paul; Manley, Harry; Sablatnig, Robert and Wimmer, Michael
    Whilst computer visualisation is an established method of presenting cultural heritage, the use of game engines to provide a full immersive virtual reality experience is less well developed. This research documents the development of a visualisation of an Iron Age hillfort using Unreal Engine together with LiDAR terrain data to create a fully immersive experience for the virtual visitor. The visualisation was evaluated by 36 members of the public. The results show a high degree of satisfaction with the visualisation and agreement with the results of other studies demonstrating significant differences between those new to and those familiar with virtual reality applications. The conclusion is that in combination, game engines and LiDAR are effective tools for creating engaging virtual heritage visualisations.
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    Multi-Light Energy Map
    (The Eurographics Association, 2018) Lardeux, Florian; Marchand, Sylvain; Gomez-Krämer, Petra; Sablatnig, Robert and Wimmer, Michael
    We propose a model to represent quasi-flat objects, such as coins or amphora stamps. These objects are flat surfaces, meaning their length and their width largely exceed their height, and feature a distinctive relief. This relief characterizes the object and its perception is directly influenced by the position of the object, the light direction and the viewer's direction. Our model is a single image representation containing the underlying structural variations of the object. This model, that we call 'Multi-Light Energy Map', is constructed out of several classic images taken with several illumination directions without computing the object's surface normals. We found a way to extract useful information out of this sequence of images and compile it into our map. We eventually explain how we can use this model in the case of image registration of ancient coins.
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    An Investigation of Optimal Light Source Setups for Photometric Stereo Reconstruction of Historical Coins
    (The Eurographics Association, 2018) Brenner, Simon; Zambanini, Sebastian; Sablatnig, Robert; Sablatnig, Robert and Wimmer, Michael
    In this paper, we address the 3D reconstruction of historical coins by means of Photometric Stereo. We investigate the influence of the number and arrangement of lights to the reconstruction quality by comparing mean angular errors on 22 historical coin models. Our results demonstrate that 6 lights circularly placed at an optimal elevation angle do not show a significant loss of reconstruction quality compared to a full semispherical dome setup with 54 lights. This represents a considerable saving of acquisition time and system complexity when it comes to the mass digitization of historical coins.
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    3D Reconstruction and Transparent Visualization of Indonesian Cultural Heritage from a Single Image
    (The Eurographics Association, 2018) Pan, Jiao; Li, Liang; Yamaguchi, Hiroshi; Hasegawa, Kyoko; Thufail, Fadjar I.; Mantara, Bra; Tanaka, Satoshi; Sablatnig, Robert and Wimmer, Michael
    Herein, we propose a method for three-dimensional (3D) reconstruction of cultural heritage based on deep learning, which we apply to the reliefs of the Buddhist temple heritage of Borobudur Temple, in Indonesia. Some parts of the Borobudur reliefs have been hidden by stone walls and are not visible following the reinforcements during the Dutch rule. Today, only gray-scale photos of those hidden parts are displayed in the Borobudur Museum. First, we reconstruct 3D point clouds of the hidden reliefs from these photos and predict the pixel-wise depth information for each of them using a deep neural network model. We then apply our stochastic point-based rendering mechanism to produce a high-quality visualization of the reconstructed point clouds. We have achieved promising visualization results that provide us with an intuitive understanding of the valuable relief heritage that is no longer visible to ordinary visitors.
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    An Image-based Approach for Detecting Faces Carved in Heritage Monuments
    (The Eurographics Association, 2018) Lai, Yu-Kun; Echavarria, Karina Rodriguez; Song, Ran; Rosin, Paul L.; Sablatnig, Robert and Wimmer, Michael
    Heritage monuments such as columns, memorials and buildings are typically carved with a variety of visual features, including figural content, illustrating scenes from battles or historical narratives. Understanding such visual features is of interest to heritage professionals as it can facilitate the study of such monuments and their conservation. However, this visual analysis can be challenging due to the large-scale size, the amount of carvings and difficulty of access to monuments across the world. This paper makes a contribution towards this goal by presenting work-in-progress for developing image-based approaches for detecting visual features in 3D models, in particular of human faces. The motivation for focusing on faces is the prominence of human figures throughout monuments in the world. The methods are tested on a 3D model of a section of the Trajan Column cast at the Victoria and Albert (V&A) Museum in London, UK. The initial results suggest that methods based on machine learning can provide useful tools for heritage professionals to deal with the large-scale challenges presented by such large monuments.
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    Participatory Co-creation of a Public Sculpture Incorporating 3D Digital Technologies
    (The Eurographics Association, 2018) Echavarria, Karina Rodriguez; Janzon, Karin; Wright, Jonathan; Sablatnig, Robert and Wimmer, Michael
    This paper presents a interdisciplinary project between artists, civic groups, heritage organisations, technical experts and communities to co-create a piece of artwork for the community. Constellation is the name of the sculpture, and Jonathan Wright, its creator, used a co-creation approach to develop both the design and fabrication of the artwork. To be installed in the Hove Plinth in Brighton & Hove (UK) and commissioned by the Hove Civic Society, this sculpture was envisaged as a celebration of the community's heritage. As such, the mechanical model was designed as a solar system and instead of planets, the most iconic heritage objects in the city were selected to orbit the system. In collaboration with communities, the artist selected these icons which were later 3D scanned in collaboration with technical experts and local heritage organisations. The icons were then manufactured using digital fabrication technologies, and installed in the sculpture. The inauguration of Constellation took place in April 2018 with very good reception from the public. Hence, this paper illustrates the advantages of co-creative approaches which incorporate digital technologies into their workflow.
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    Deep Mapping Tarn Hows: Automated Generation of 3D Historic Landscapes
    (The Eurographics Association, 2018) Reinhold, Alexander; Gregory, Ian; Rayson, Paul; Sablatnig, Robert and Wimmer, Michael
    Changing landscape presents a problem for both conservation and education at heritage sites. We consider the site of Tarn Hows in the English Lake District National Park, a site which has had significant landscape change over the past 200 years, from developing tree coverage, to the merging of three lakes into one. We created an automated process that combines an elevation map and a vegetation map to build a 3D representation of the landscape. We used this tool to create a 3D Deep Map of Tarn Hows, representing the site's landscape at multiple periods over time, allowing them to be viewed side by side and explored in an interactive environment. This 3D Deep Map provides an exploratory resource for site authorities to educate the public about the historic environment, with embedded multimedia in the application to provide additional information to users that might be disruptive or impractical to display on site. The 3D Deep Map also provides a tool for conservators to plan site maintenance to best maintain the integrity of the historic landscape without negatively impacting visitors' experience of the iconic site.
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    On Combining Epigraphy, TLS, Photogrammetry, and Interactive Media for Heritage Documentation: The Case Study of Djehutihotep's Tomb in Dayr al-Barsha
    (The Eurographics Association, 2018) Lima, Roberto de; Sykora, Toon; Meyer, Marleen De; Willems, Harco; Vergauwen, Maarten; Sablatnig, Robert and Wimmer, Michael
    The governors' tombs located at Dayr al-Barsha are considered among the most important monuments of the Egyptian Middle Kingdom. Unfortunately, due to quarrying activities, looting, and natural catastrophes, the archaeological remains are now in a dilapidated state. Their documentation therefore becomes a necessary task towards the preservation and research of this provincial elite cemetery. Traditional geomatics-based heritage recording methods and sensors are, however, not sufficient to yield a full and comprehensive documentation. Inspired by emergent technologies, this paper proposes a symbiosis of digital epigraphy, Terrestrial Laser Scanning (TLS), image-based digitalization techniques, and 3D visualization platforms, to provide experts with a digital tool able to yield high-level information in terms of accurate digital drawings of decorated sections and dense 3D mesh models. Results show that the proposed approach provides a reliable alternative to answer research questions, especially in the context of ancient Egyptian heritage, as the level of detail captured enables the academic community to further explore decoration techniques, damage recognition, and digital reconstruction.
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    Integrated Volume Visualisation of Archaeological Ground Penetrating Radar Data
    (The Eurographics Association, 2018) Bornik, Alexander; Wallner, Mario; Hinterleitner, Alois; Verhoeven, Geert; Neubauer, Wolfgang; Sablatnig, Robert and Wimmer, Michael
    The non-invasive prospection of our archaeological heritage is one of the main tasks of modern archaeology and often provides the necessary bases for further activities, such as special protection or intensified research. Geophysical prospections using ground-penetrating radar (GPR) are an invaluable tool for the non-destructive exploration of archaeological monuments still buried in the ground. However, the analysis and interpretation of the data sets generated in this way is a time-consuming and complex process and requires not only three-dimensional imagination but also a broad understanding of the archaeological remains. Therefore, understandable 3D visualisations are in great demand. This paper presents a novel integrated visualisation approach, which supports conjoint visualisation of scenes composed of heterogeneous data including GPR volumes and 3D models of interpretations and reconstructions. Visual depiction of relevant dataset areas and archaeological structures is facilitated based on flexible and localised visualisation techniques. Furthermore, the rendering system supports the computation of dynamic label layouts for scenes annotations.
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    Integrated Spatio-temporal Documentation and Analysis of Archaeological Stratifications Using the Harris Matrix
    (The Eurographics Association, 2018) Neubauer, Wolfgang; Traxler, Christoph; Lenzhofer, Andreas; Kucera, Matthias; Sablatnig, Robert and Wimmer, Michael
    The Harris Matrix (HM) is the fundamental diagrammatic representation of relative time for an archaeological site and the de facto standard for the representation of a stratigraphic sequence - the backbone for archaeological stratigraphy. It displays all uniquely identified units of stratification in a sequential diagram representing their relative temporal succession. The Harris Matrix Composer is a widely used application in the archaeological community to efficiently create and analyse HMs. However, it does not support explicit dating of HM units, which is an important information for post-excavation investigations of an archaeological site. In this paper we describe an integrated approach for a combination of stratigraphic and chronologic relations. The implicit, chronologic sequence given by the HM becomes explicit as scientists are enabled to define a hierarchical time model and assign units of the HM to temporal intervals or provide exact dating. The system maintains a consistent visual representation, which means that a correct stratigraphic layout is preserved while units are aligned to intervals of the time model. Evaluation of a real-world use case showed that this combined visualisation makes the scientific analysis and interpretation more efficient and reliable.
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    Virtual Restoration of Wooden Artifacts by Non-Rigid 3D Shape Assembly: A Case of the First Solar Boat of King Khufu
    (The Eurographics Association, 2018) Nemoto, Takashi; Kobayashi, Tetsuya; Oishi, Takeshi; Kagesawa, Masataka; Kurokochi, Hiromasa; Yoshimura, Sakuji; Ziddan, Eissa; Taha, Mamdouh; Sablatnig, Robert and Wimmer, Michael
    In this paper, we present a method to digitally reassemble an object to its original form given the 3D data of its component which are assumed to be non-rigidly deformed. Targeting wooden artifacts, we developed an algorithm to deform the components parametrically, and constraints based on the physical properties of wood are imposed on the deformation. We apply our method to a deformed cultural asset, specifically the first solar boat of King Khufu which is made of wood.
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    New Haven Building Archive: A Database for the Collection, Study, and Communication of Local Built Heritage
    (The Eurographics Association, 2018) Rubin, Elihu; Akhtar, Saima; Brown, Benedict; Rushmeier, Holly; Sablatnig, Robert and Wimmer, Michael
    The New Haven Building Archive (NHBA) is a digital, mobile, and interactive field guide to New Haven, Connecticut's built heritage. As an interactive digital guide and database for local buildings, the NHBA harnesses digital mapping technologies, place-based storytelling and community-based research. Ultimately, the development of the NHBA will aid in the co-production of knowledge about the city by students, academic researchers and local citizens in a way that will facilitate conversations about the historical patterns and future development of New Haven while suggesting a model for engaged teaching and research for urban studies more broadly.
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    Towards an Automatic 3D Patterns Classification: the GRAVITATE Use Case
    (The Eurographics Association, 2018) Thompson, Elia Moscoso; Biasotti, Silvia; Sorrentino, Giusi; Polig, Martina; Hermon, Sorin; Sablatnig, Robert and Wimmer, Michael
    When cataloging archaeological fragments, decorative patterns are an indicator of the stylistic canon an object belongs to. In this paper we address a quantitative classification of the decorative pattern elements that characterize the models in the GRAVITATE use case, discussing the performance of a recent algorithm for pattern recognition over triangle meshes.
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    Shape Analysis Techniques for the Ayia Irini Case Study
    (The Eurographics Association, 2018) Scalas, Andreas; Vassallo, Valentina; Mortara, Michela; Spagnuolo, Michela; Hermon, Sorin; Sablatnig, Robert and Wimmer, Michael
    The typical approach for archaeological analysis is mainly qualitative and, as such, subjective. Even when some measures are reported in the documentation of artefacts, they are often approximate or ambiguous. Conversely, the quantitative approach is based on objective metrics to produce replicable results and, coupled with digital tools, can assist the qualitative analysis in archaological research with no risk of damage. In this paper, we present a geometric-quantitative approach for the analysis of archaeological finds and the preliminary results of an ongoing joint research project of two doctoral students within the frame of the EU GRAVITATE project.