GCH 2016 - Eurographics Workshop on Graphics and Cultural Heritage

Permanent URI for this collection

Acquisition and Reconstruction
Automatic Selection of Video Frames for Path Regularization and 3D Reconstruction
Gaia Pavoni, Matteo Dellepiane, Marco Callieri, and Roberto Scopigno
c-Space: Time-evolving 3D Models (4D) from Heterogeneous Distributed Video Sources
Martin Ritz, Martin Knuth, Matevz Domajnko, Oliver Posniak, Pedro Santos, and Dieter W. Fellner
Harvesting Dynamic 3D Worlds from Commodity Sensor Clouds
Tamy Boubekeur, Paolo Cignoni, Elmar Eisemann, Michael Goesele, Reinhard Klein, Stefan Roth, Michael Weinmann, and Michael Wimmer
Visualisation and 3D Printing
Multi-View Ambient Occlusion for Enhancing Visualization of Raw Scanning Data
Manuele Sabbadin, Gianpaolo Palma, Paolo Cignoni, and Roberto Scopigno
A Framework for Compact and Improved Panoramic VR Dissemination
Bruno Fanini and Enzo D'Annibale
A Soft Union based Method for Virtual Restoration and 3D Printing of Cultural Heritage Objects
Robert Gregor, Pavlos Mavridis, Albert Wiltsche, and Tobias Schreck
Scan4Reco: Towards the Digitized Conservation of Cultural Heritage Assets via Spatiotemporal (4D) Reconstruction and 3D Printing
Nikolaos Dimitriou, Anastasios Drosou, and Dimitrios Tzovaras
Heritage Communications
The Missing Scholarship Behind Virtual Heritage Infrastructures
Erik Malcolm Champion
Reflecting on European History with the Help of Technology: The CrossCult Project
Ioanna Lykourentzou, Yannick Naudet, and Luc Vandenabeele
Experience Etruria: a Cross-media Platform for E-culture and Tourism
Antonella Guidazzoli, Giovanni Bellavia, Daniele De Luca, Maria Chiara Liguori, Lorenzo Castiello, and Alessandro Pirotti
A Complete Workflow From the Data Collection on the Field to the Deployment of a Virtual Museum: the Case of Virtual Sarmizegetusa
Adriana Antal, Emilian Bota, Carmen Ciongradi, Enzo D'Annibale, Emanuel Demetrescu, Cristian Dima, Bruno Fanini, and Daniele Ferdani
4D Virtual Reconstruction of White Bastion Fortress
Selma Rizvic, Vensada Okanovic, Irfan Prazina, and Aida Sadzak
Analysis and Interpretation
Wall Painting Reconstruction Using a Genetic Algorithm
Elena Sizikova and Thomas Funkhouser
Feature Identification in Archaeological Fragments Using Families of Algebraic Curves
Maria-Laura Torrente, Silvia Biasotti, and Bianca Falcidieno
Web-based Exploration of Semantically Rich 3D Decorative Ornament
Karina Rodriguez Echavarria, Dean Few, and Ran Song
2D/3D Semantic Annotation of Spatialized Images for the Documentation and Analysis of Cultural Heritage
Adeline Manuel, Philippe Véron, and Livio De Luca
Color Restoration of Scanned Archaeological Artifacts with Repetitive Patterns
Danit Gilad-Glickman and Ilan Shimshoni
Interactive Environments and Applications I
Interactive 3D Exploration of a Virtual Sculpture Collection: an Analysis of User Behavior in Museum Settings
Marco Agus, Fabio Marton, Fabio Bettio, and Enrico Gobbetti
3D in-world Telepresence With Camera-Tracked Gestural Interaction
Erik Malcolm Champion, Li Qiang, Demetrius Lacet, and Andrew Dekker
3-D Digital Preservation of At-Risk Global Cultural Heritage
Nicola Lercari, Jurgen Shulze, Willeke Wendrich, Benjamin Porter, Margie Burton, and Thomas E. Levy
Acquisition and Visualisation
A Practical Reflectance Transformation Imaging Pipeline for Surface Characterization in Cultural Heritage
Irina Mihaela Ciortan, Ruggero Pintus, Giacomo Marchioro, Claudia Daffara, Andrea Giachetti, and Enrico Gobbetti
Using Flash Photography and Image-Based Rendering to Document Cultural Heritage Artifacts
Michael Tetzlaff and Gary Meyer
Semantic-aware Representations
3D Semantic Modelling of Scale Models from 2D Historical Plans
Christine Chevrier
Representation and Visualization of Urban Fabric through Historical Documents
John Samuel, Clémentine Périnaud, Sylvie Servigne, Georges Gay, and Gilles Gesquière
Semantic Structuring and 3D Modeling of Masonry Structure
Kévin Jacquot and Livio De Luca
Interactive Environments and Applications II
Vis-à-vis with Leonardo. Designing Digital Encounters
Mauro Ceconello and Davide Spallazzo
Digital Epigraphic Heritage Made Simple: an Android App for Exploring 3D Roman Inscriptions
Manuel Ramírez, Jose Pablo Suárez, Agustín Trujillo, Pablo Fernández, Jose Miguel Santana, and Sebastián Ortega
On-site AR Interface based on Web-based 3D Database for Cultural Heritage in Egypt
Yoshihiro Yasumuro, Ryosuke Matsushita, Tokihisa Higo, and Hiroshi Suita
Systems and Tools for Interpretation and Documentation
CHER-Ob: A Tool for Shared Analysis in Cultural Heritage
Weiqi Shi, Eleni Kotoula, Kiraz Akoglu, Ying Yang, and Holly Rushmeier
Conservation Digital Report: Standard Documentation in Cultural Heritage
Laura Baratin, Giovanna Scicolone, and Stefano Lonati
3D Documentation and Semantic Aware Representation of Cultural Heritage: the INCEPTION Project
Roberto Di Giulio, Federica Maietti, and Emanuele Piaia
GRAVITATE: Geometric and Semantic Matching for Cultural Heritage Artefacts
Stephen C. Phillips, Paul W. Walland, Stefano Modafferi, Leo Dorst, Michela Spagnuolo, Chiara Eva Catalano, Dominic Oldman, Ayellet Tal, Ilan Shimshoni, and Sorin Hermon
ArchAIDE - Archaeological Automatic Interpretation and Documentation of cEramics
Maria Letizia Gualandi, Roberto Scopigno, Lior Wolf, Julian Richards, Jaume Buxeda i Garrigos, Michael Heinzelmann, Miguel Angel Hervas, Llorenc Vila, and Massimo Zallocco
Acquisition and Processing
Toward a Multimodal Photogrammetric Acquisition and Processing Methodology for Monitoring Conservation and Restoration Studies
Anthony Pamart, Odile Guillon, Jean-Marc Vallet, and Livio De Luca
Accelerating Point Cloud Cleaning
Rickert L. Mulder and Patrick Marais
3D Object Spatial- consistent Texture Maps Appropriate for 2D Image Processing
George Ioannakis, Anestis Koutsoudis, and Christos Chamzas
Interdisciplinary Dialogue Towards an Enhanced Understanding of Optical Techniques for Recording Material Cultural Heritage - Results of a COST Action
Frank Boochs, Anna Bentkowska-Kafel, and Stefanie Wefers

BibTeX (GCH 2016 - Eurographics Workshop on Graphics and Cultural Heritage)
@inproceedings{
10.2312:gch.20161376,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Automatic Selection of Video Frames for Path Regularization and 3D Reconstruction}},
author = {
Pavoni, Gaia
and
Dellepiane, Matteo
and
Callieri, Marco
and
Scopigno, Roberto
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161376}
}
@inproceedings{
10.2312:gch.20161378,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Harvesting Dynamic 3D Worlds from Commodity Sensor Clouds}},
author = {
Boubekeur, Tamy
and
Cignoni, Paolo
and
Eisemann, Elmar
and
Goesele, Michael
and
Klein, Reinhard
and
Roth, Stefan
and
Weinmann, Michael
and
Wimmer, Michael
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161378}
}
@inproceedings{
10.2312:gch.20161377,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
c-Space: Time-evolving 3D Models (4D) from Heterogeneous Distributed Video Sources}},
author = {
Ritz, Martin
and
Knuth, Martin
and
Domajnko, Matevz
and
Posniak, Oliver
and
Santos, Pedro
and
Fellner, Dieter W.
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161377}
}
@inproceedings{
10.2312:gch.20161379,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Multi-View Ambient Occlusion for Enhancing Visualization of Raw Scanning Data}},
author = {
Sabbadin, Manuele
and
Palma, Gianpaolo
and
Cignoni, Paolo
and
Scopigno, Roberto
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161379}
}
@inproceedings{
10.2312:gch.20161380,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
A Framework for Compact and Improved Panoramic VR Dissemination}},
author = {
Fanini, Bruno
and
D'Annibale, Enzo
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161380}
}
@inproceedings{
10.2312:gch.20161383,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
The Missing Scholarship Behind Virtual Heritage Infrastructures}},
author = {
Champion, Erik Malcolm
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161383}
}
@inproceedings{
10.2312:gch.20161382,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Scan4Reco: Towards the Digitized Conservation of Cultural Heritage Assets via Spatiotemporal (4D) Reconstruction and 3D Printing}},
author = {
Dimitriou, Nikolaos
and
Drosou, Anastasios
and
Tzovaras, Dimitrios
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161382}
}
@inproceedings{
10.2312:gch.20161381,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
A Soft Union based Method for Virtual Restoration and 3D Printing of Cultural Heritage Objects}},
author = {
Gregor, Robert
and
Mavridis, Pavlos
and
Wiltsche, Albert
and
Schreck, Tobias
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161381}
}
@inproceedings{
10.2312:gch.20161387,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
4D Virtual Reconstruction of White Bastion Fortress}},
author = {
Rizvic, Selma
and
Okanovic, Vensada
and
Prazina, Irfan
and
Sadzak, Aida
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161387}
}
@inproceedings{
10.2312:gch.20161385,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Experience Etruria: a Cross-media Platform for E-culture and Tourism}},
author = {
Guidazzoli, Antonella
and
Bellavia, Giovanni
and
Luca, Daniele De
and
Liguori, Maria Chiara
and
Castiello, Lorenzo
and
Pirotti, Alessandro
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161385}
}
@inproceedings{
10.2312:gch.20161384,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Reflecting on European History with the Help of Technology: The CrossCult Project}},
author = {
Lykourentzou, Ioanna
and
Naudet, Yannick
and
Vandenabeele, Luc
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161384}
}
@inproceedings{
10.2312:gch.20161386,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
A Complete Workflow From the Data Collection on the Field to the Deployment of a Virtual Museum: the Case of Virtual Sarmizegetusa}},
author = {
Antal, Adriana
and
Bota, Emilian
and
Ciongradi, Carmen
and
D'Annibale, Enzo
and
Demetrescu, Emanuel
and
Dima, Cristian
and
Fanini, Bruno
and
Ferdani, Daniele
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161386}
}
@inproceedings{
10.2312:gch.20161389,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Feature Identification in Archaeological Fragments Using Families of Algebraic Curves}},
author = {
Torrente, Maria-Laura
and
Biasotti, Silvia
and
Falcidieno, Bianca
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161389}
}
@inproceedings{
10.2312:gch.20161388,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Wall Painting Reconstruction Using a Genetic Algorithm}},
author = {
Sizikova, Elena
and
Funkhouser, Thomas
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161388}
}
@inproceedings{
10.2312:gch.20161391,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
2D/3D Semantic Annotation of Spatialized Images for the Documentation and Analysis of Cultural Heritage}},
author = {
Manuel, Adeline
and
Véron, Philippe
and
Luca, Livio De
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161391}
}
@inproceedings{
10.2312:gch.20161390,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Web-based Exploration of Semantically Rich 3D Decorative Ornament}},
author = {
Echavarria, Karina Rodriguez
and
Few, Dean
and
Song, Ran
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161390}
}
@inproceedings{
10.2312:gch.20161392,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Color Restoration of Scanned Archaeological Artifacts with Repetitive Patterns}},
author = {
Gilad-Glickman, Danit
and
Shimshoni, Ilan
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161392}
}
@inproceedings{
10.2312:gch.20161395,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
3-D Digital Preservation of At-Risk Global Cultural Heritage}},
author = {
Lercari, Nicola
and
Shulze, Jurgen
and
Wendrich, Willeke
and
Porter, Benjamin
and
Burton, Margie
and
Levy, Thomas E.
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161395}
}
@inproceedings{
10.2312:gch.20161394,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
3D in-world Telepresence With Camera-Tracked Gestural Interaction}},
author = {
Champion, Erik Malcolm
and
Qiang, Li
and
Lacet, Demetrius
and
Dekker, Andrew
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161394}
}
@inproceedings{
10.2312:gch.20161393,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Interactive 3D Exploration of a Virtual Sculpture Collection: an Analysis of User Behavior in Museum Settings}},
author = {
Agus, Marco
and
Marton, Fabio
and
Bettio, Fabio
and
Gobbetti, Enrico
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161393}
}
@inproceedings{
10.2312:gch.20161396,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
A Practical Reflectance Transformation Imaging Pipeline for Surface Characterization in Cultural Heritage}},
author = {
Ciortan, Irina Mihaela
and
Pintus, Ruggero
and
Marchioro, Giacomo
and
Daffara, Claudia
and
Giachetti, Andrea
and
Gobbetti, Enrico
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161396}
}
@inproceedings{
10.2312:gch.20161397,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Using Flash Photography and Image-Based Rendering to Document Cultural Heritage Artifacts}},
author = {
Tetzlaff, Michael
and
Meyer, Gary
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161397}
}
@inproceedings{
10.2312:gch.20161400,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Semantic Structuring and 3D Modeling of Masonry Structure}},
author = {
Jacquot, Kévin
and
Luca, Livio De
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161400}
}
@inproceedings{
10.2312:gch.20161401,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Vis-à-vis with Leonardo. Designing Digital Encounters}},
author = {
Ceconello, Mauro
and
Spallazzo, Davide
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161401}
}
@inproceedings{
10.2312:gch.20161398,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
3D Semantic Modelling of Scale Models from 2D Historical Plans}},
author = {
Chevrier, Christine
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161398}
}
@inproceedings{
10.2312:gch.20161399,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Representation and Visualization of Urban Fabric through Historical Documents}},
author = {
Samuel, John
and
Périnaud, Clémentine
and
Servigne, Sylvie
and
Gay, Georges
and
Gesquière, Gilles
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161399}
}
@inproceedings{
10.2312:gch.20161403,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
On-site AR Interface based on Web-based 3D Database for Cultural Heritage in Egypt}},
author = {
Yasumuro, Yoshihiro
and
Matsushita, Ryosuke
and
Higo, Tokihisa
and
Suita, Hiroshi
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161403}
}
@inproceedings{
10.2312:gch.20161404,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
CHER-Ob: A Tool for Shared Analysis in Cultural Heritage}},
author = {
Shi, Weiqi
and
Kotoula, Eleni
and
Akoglu, Kiraz
and
Yang, Ying
and
Rushmeier, Holly
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161404}
}
@inproceedings{
10.2312:gch.20161402,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Digital Epigraphic Heritage Made Simple: an Android App for Exploring 3D Roman Inscriptions}},
author = {
Ramírez, Manuel
and
Suárez, Jose Pablo
and
Trujillo, Agustín
and
Fernández, Pablo
and
Santana, Jose Miguel
and
Ortega, Sebastián
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161402}
}
@inproceedings{
10.2312:gch.20161408,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
ArchAIDE - Archaeological Automatic Interpretation and Documentation of cEramics}},
author = {
Gualandi, Maria Letizia
and
Scopigno, Roberto
and
Wolf, Lior
and
Richards, Julian
and
Garrigos, Jaume Buxeda i
and
Heinzelmann, Michael
and
Hervas, Miguel Angel
and
Vila, Llorenc
and
Zallocco, Massimo
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161408}
}
@inproceedings{
10.2312:gch.20161405,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Conservation Digital Report: Standard Documentation in Cultural Heritage}},
author = {
Baratin, Laura
and
Scicolone, Giovanna
and
Lonati, Stefano
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161405}
}
@inproceedings{
10.2312:gch.20161406,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
3D Documentation and Semantic Aware Representation of Cultural Heritage: the INCEPTION Project}},
author = {
Giulio, Roberto Di
and
Maietti, Federica
and
Piaia, Emanuele
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161406}
}
@inproceedings{
10.2312:gch.20161407,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
GRAVITATE: Geometric and Semantic Matching for Cultural Heritage Artefacts}},
author = {
Phillips, Stephen C.
and
Walland, Paul W.
and
Modafferi, Stefano
and
Dorst, Leo
and
Spagnuolo, Michela
and
Catalano, Chiara Eva
and
Oldman, Dominic
and
Tal, Ayellet
and
Shimshoni, Ilan
and
Hermon, Sorin
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161407}
}
@inproceedings{
10.2312:gch.20161409,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Toward a Multimodal Photogrammetric Acquisition and Processing Methodology for Monitoring Conservation and Restoration Studies}},
author = {
Pamart, Anthony
and
Guillon, Odile
and
Vallet, Jean-Marc
and
Luca, Livio De
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161409}
}
@inproceedings{
10.2312:gch.20161410,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Accelerating Point Cloud Cleaning}},
author = {
Mulder, Rickert L.
and
Marais, Patrick
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161410}
}
@inproceedings{
10.2312:gch.20161412,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
Interdisciplinary Dialogue Towards an Enhanced Understanding of Optical Techniques for Recording Material Cultural Heritage - Results of a COST Action}},
author = {
Boochs, Frank
and
Bentkowska-Kafel, Anna
and
Wefers, Stefanie
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161412}
}
@inproceedings{
10.2312:gch.20161411,
booktitle = {
Eurographics Workshop on Graphics and Cultural Heritage},
editor = {
Chiara Eva Catalano and Livio De Luca
}, title = {{
3D Object Spatial- consistent Texture Maps Appropriate for 2D Image Processing}},
author = {
Ioannakis, George
and
Koutsoudis, Anestis
and
Chamzas, Christos
}, year = {
2016},
publisher = {
The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-011-6},
DOI = {
10.2312/gch.20161411}
}

Browse

Recent Submissions

Now showing 1 - 38 of 38
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    GCH 2016: Frontmatter
    (Eurographics Association, 2016) Chiara Eva Catalano; Livio De Luca;
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    Automatic Selection of Video Frames for Path Regularization and 3D Reconstruction
    (The Eurographics Association, 2016) Pavoni, Gaia; Dellepiane, Matteo; Callieri, Marco; Scopigno, Roberto; Chiara Eva Catalano and Livio De Luca
    Video sequences can be a valuable source to document the state of objects and sites. They are easy to acquire and they usually ensure a complete coverage of the object of interest. One of their possible uses is to recover the acquisition path, or the 3D shape of the scene. This can be done by applying structurefrom- motion techniques to a representative set of frames extracted from the video. This paper presents an automatic method for the extraction of a predefined number of representative frames that ensures an accurate reconstruction of the sequence path, and possibly enhances the 3D reconstruction of the scene. The automatic extraction is obtained by analyzing adjacent frames in a starting subset, and adding/removing frames so that the distance between them remains constant. This ensures the reconstruction of a regularized path and an optimized coverage of all the scene. Finally, more frames are added in the portions of the sequence when more detailed objects are framed. This ensures a better description of the sequence, and a more accurate dense reconstruction. The method is automatic, fast and independent from any assumption about the acquired object or the acquisition strategy. It was tested on a variety of different video sequences, showing that a satisfying result can be obtained regardless of the length and quality of the input.
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    Harvesting Dynamic 3D Worlds from Commodity Sensor Clouds
    (The Eurographics Association, 2016) Boubekeur, Tamy; Cignoni, Paolo; Eisemann, Elmar; Goesele, Michael; Klein, Reinhard; Roth, Stefan; Weinmann, Michael; Wimmer, Michael; Chiara Eva Catalano and Livio De Luca
    The EU FP7 FET-Open project ''Harvest4D: Harvesting Dynamic 3D Worlds from Commodity Sensor Clouds'' deals with the acquisition, processing, and display of dynamic 3D data. Technological progress is offering us a wide-spread availability of sensing devices that deliver different data streams, which can be easily deployed in the real world and produce streams of sampled data with increased density and easier iteration of the sampling process. These data need to be processed and displayed in a new way. The Harvest4D project proposes a radical change in acquisition and processing technology: instead of a goaldriven acquisition that determines the devices and sensors, its methods let the sensors and resulting available data determine the acquisition process. A variety of challenging problems need to be solved: huge data amounts, different modalities, varying scales, dynamic, noisy and colorful data. This short contribution presents a selection of the many scientific results produced by Harvest4D. We will focus on those results that could bring a major impact to the Cultural Heritage domain, namely facilitating the acquisition of the sampled data or providing advanced visual analysis capabilities.
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    c-Space: Time-evolving 3D Models (4D) from Heterogeneous Distributed Video Sources
    (The Eurographics Association, 2016) Ritz, Martin; Knuth, Martin; Domajnko, Matevz; Posniak, Oliver; Santos, Pedro; Fellner, Dieter W.; Chiara Eva Catalano and Livio De Luca
    We introduce c-Space, an approach to automated 4D reconstruction of dynamic real world scenes, represented as time-evolving 3D geometry streams, available to everyone. Our novel technique solves the problem of fusing all sources, asynchronously captured from multiple heterogeneous mobile devices around a dynamic scene at a real word location. To this end all captured input is broken down into a massive unordered frame set, sorting the frames along a common time axis, and finally discretizing the ordered frame set into a time-sequence of frame subsets, each subject to photogrammetric 3D reconstruction. The result is a time line of 3D models, each representing a snapshot of the scene evolution in 3D at a specific point in time. Just like a movie is a concatenation of time-discrete frames, representing the evolution of a scene in 2D, the 4D frames reconstructed by c-Space line up to form the captured and dynamically changing 3D geometry of an event over time, thus enabling the user to interact with it in the very same way as with a static 3D model. We do image analysis to automatically maximize the quality of results in the presence of challenging, heterogeneous and asynchronous input sources exhibiting a wide quality spectrum. In addition we show how this technique can be integrated as a 4D reconstruction web service module, available to mobile end-users.
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    Multi-View Ambient Occlusion for Enhancing Visualization of Raw Scanning Data
    (The Eurographics Association, 2016) Sabbadin, Manuele; Palma, Gianpaolo; Cignoni, Paolo; Scopigno, Roberto; Chiara Eva Catalano and Livio De Luca
    The correct understanding of the 3D shape is a crucial aspect to improve the 3D scanning process, especially in order to perform high quality and as complete as possible 3D acquisitions on the field. The paper proposes a new technique to enhance the visualization of raw scanning data based on the definition in device space of a Multi-View Ambient Occlusion (MVAO). The approach allows improving the comprehension of the 3D shape of the input geometry and, requiring almost no preprocessing, it can be directly applied to raw captured point clouds. The algorithm has been tested on different datasets: high resolution Time-of-Flight scans and streams of low quality range maps from a depth camera. The results enhance the details perception in the 3D geometry using the multi-view information to make more robust the ambient occlusion estimation.
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    A Framework for Compact and Improved Panoramic VR Dissemination
    (The Eurographics Association, 2016) Fanini, Bruno; D'Annibale, Enzo; Chiara Eva Catalano and Livio De Luca
    Panoramic capture devices in Cultural Heritage are becoming widely available to consumer market, also due to comfortable interactive online dissemination and to the growth of VR segment. VR fruition through an HMD although, requires a virtual 3D representation to provide consistency in terms of experience, scale and spatial perception, overcoming limitations of standard approaches in orientation+positional HMD tracking model. However, modeling of 3D scenes and especially optimization of acquired dataset, are often time-consuming tasks: these are further stressed when dealing with latency-free demands of latest HMDs. In this paper, we propose a novel framework for panoramic acquisition and an improved data model for VR dissemination: spherical panoramas, omnidirectional depth-maps and semantic annotations are encoded into a compact, coherent representation that suits modern HMD needs and low-cost VR devices. We describe advantages of our approach in terms of acquisition pipeline, presence and depth perception in HMDs fruition, discussing also visualization efficiency in online contexts. We present a few case studies where we applied the methodology and the workflow we adopted, comparing results. We discuss integration of existing desktop toolkits into the pipeline, dissemination capabilities through recent WebVR API and framework advantages for immersive VR panoramic video streaming.
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    The Missing Scholarship Behind Virtual Heritage Infrastructures
    (The Eurographics Association, 2016) Champion, Erik Malcolm; Chiara Eva Catalano and Livio De Luca
    This theoretical position paper outlines four key issues blocking the development of effective 3D models that would be suitable for the aims and objectives of virtual heritage infrastructures. It suggests that a real-time game environment which composes levels at runtime from streaming multimédia components would offer advantages in terms of editing, customisation and personalisation. The paper concludes with three recommendations for virtual heritage infrastructures.
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    Scan4Reco: Towards the Digitized Conservation of Cultural Heritage Assets via Spatiotemporal (4D) Reconstruction and 3D Printing
    (The Eurographics Association, 2016) Dimitriou, Nikolaos; Drosou, Anastasios; Tzovaras, Dimitrios; Chiara Eva Catalano and Livio De Luca
    The European Cultural Heritage includes a rich variety of cultural items and a significant amount of resources is devoted to their conservation and dissemination to the public. Living in the era of digitization, these efforts have been significantly facilitated by advances not only in traditional domains (e.g. material science, etc.), but also from more modern ones (i.e. 3D computer graphics & VR simulations). Within this context, the EU funded project Scan4Reco aims to offer low-cost and feasible solutions in the field, as well as to improve existing practices via the automatic digitization and documentation of a wide variety of cultural items. In particular, material identification and visualization will be addressed via multi-sensorial and multi-resolutional material segmentation and data-fusion algorithms, while the problem of the parallel deterioration of the composing materials, given certain environmental conditions will be dealt with via the introduction and fusion of statistical, material-specific ageing models. The conservation dedicated Decision Support System (DSS) of Scan4Reco will be built upon a simulation engine and will suggest optimal conservation methodologies according to different criteria. Last but not least, the Scan4Reco outcomes will be demonstrated through tactile multilayered 3D printed surrogates, while digital surrogates of the cultural items along with their travel in time will be exhibited in a dedicated VR museum. In order to familiarize the reader with Sca4Reco's research novelties and breakthrough innovations, the current paper describes its modules, elaborating on their connection to the project's objectives and to identified user requirements. In addition, we present the overall architecture of the platform commenting on the interdependencies between components and their functionality.
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    A Soft Union based Method for Virtual Restoration and 3D Printing of Cultural Heritage Objects
    (The Eurographics Association, 2016) Gregor, Robert; Mavridis, Pavlos; Wiltsche, Albert; Schreck, Tobias; Chiara Eva Catalano and Livio De Luca
    Recent improvements in 3D acquisition and shape processing methods lead to increased digitization of 3D Cultural Heritage (CH) objects. Beyond the mere digital archival of CH artifacts, there is an emerging research area dedicated to digital restoration of 3D Cultural Heritage artifacts. In particular several methods have been published recently that, from a digitized set of fragments, enable their reassembly or even the synthesis of missing or eroded parts. Usually the result of such methods is a set of aligned but disconnected parts. However, it is often desirable to produce a single, watertight mesh that can be easily 3D printed. We propose a method based on a volumetric soft union operation that can be used to combine such sets of aligned fragments to a single manifold mesh while producing smooth and plausible geometry at the seams. We assess its visual quality and efficiency in comparison to an adaption of the well-known Poisson Reconstruction method. Finally, we provide practical insights on printing the results produced by our method on digitized fragments of real CH objects.
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    4D Virtual Reconstruction of White Bastion Fortress
    (The Eurographics Association, 2016) Rizvic, Selma; Okanovic, Vensada; Prazina, Irfan; Sadzak, Aida; Chiara Eva Catalano and Livio De Luca
    White bastion fortress has been standing in defense of Sarajevo since medieval period. In time it was changing together with various dominations upon the city. 4D virtual presentation aims to display the historical development of this cultural heritage object through digital storytelling combined with interactive 3D models of the Bastion in various time periods. These models contain digitized findings from the site and their 3D reconstructions. In this paper we present a new method of interactive digital storytelling for cultural heritage and its initial user evaluation.
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    Experience Etruria: a Cross-media Platform for E-culture and Tourism
    (The Eurographics Association, 2016) Guidazzoli, Antonella; Bellavia, Giovanni; Luca, Daniele De; Liguori, Maria Chiara; Castiello, Lorenzo; Pirotti, Alessandro; Chiara Eva Catalano and Livio De Luca
    Experience Etruria aims at promoting the Italian Latium, Tuscany and Umbria regions starting from their common Etruscan roots, their landscape and food and wine wonders. The project includes a web portal, a downloadable and printable map with 4 sensory routes, related to local food and Etruscan sites and museums, and an emotional video. The video merges Computer Graphics and real-life shootings, joining a trend that is spreading among the educational productions.
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    Reflecting on European History with the Help of Technology: The CrossCult Project
    (The Eurographics Association, 2016) Lykourentzou, Ioanna; Naudet, Yannick; Vandenabeele, Luc; Chiara Eva Catalano and Livio De Luca
    History, and in particular European history, is not merely a collection of unconnected events, but rather a complex mesh of interrelated facts, events and concepts, taking place within a wider context of previous and contemporary situations. Unfortunately when addressing the wider public, like in schools, museums and cultural spaces, history is often presented in a simplistic, siloed and localistic manner that promotes memorizing rather than understanding, does not account for cross-border cultural aspects and prevents historical events from being viewed as a shared, global experience. The goal of the CrossCult H2020 project, comprising 11 partners from 7 European countries, is to spur a change in the way European citizens appraise, interpret and access history, by enabling new and highlighting existing cross-border connections among pieces of cultural heritage, other citizens' viewpoints and physical venues. Facilitated by technology and mobile applications, with a strong background in social sciences, the project focuses on developing pilot experiences that build narratives of cross-border connections and crosscutting topics, to help visitors gain insight into how the same facts may be interpreted differently from different social realities and by different individuals. In this paper we introduce the CrossCult project and its goals, provide an overview of its four project pilots and discuss the technologies it employs to connect cultural heritage venues, repositories and people's viewpoints.
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    A Complete Workflow From the Data Collection on the Field to the Deployment of a Virtual Museum: the Case of Virtual Sarmizegetusa
    (The Eurographics Association, 2016) Antal, Adriana; Bota, Emilian; Ciongradi, Carmen; D'Annibale, Enzo; Demetrescu, Emanuel; Dima, Cristian; Fanini, Bruno; Ferdani, Daniele; Chiara Eva Catalano and Livio De Luca
    This paper presents the first installation produced with the data collected on the ancient roman city of Colonia Dacica Sarmizegetusa: it can be considered a concrete example of a full workflow, from photogrammetric 3D acquisition to gaming experience, able to contribute to the community of experts in the domain of virtual museum. The visualization of enormous archaeological contexts like a whole ancient city has been a test bed to develop tools and methodologies in order to create and maintain accurate and fully real-time enabled 3D models. In the temporary exhibition, open until 30 September 2016, a multimedia installation based on "natural interaction" solutions was set up: thanks to Kinect and Leap-Motion sensors visitors can interact with virtual environments and objects, using gestures to experience a more engaging and intuitive experience.
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    Feature Identification in Archaeological Fragments Using Families of Algebraic Curves
    (The Eurographics Association, 2016) Torrente, Maria-Laura; Biasotti, Silvia; Falcidieno, Bianca; Chiara Eva Catalano and Livio De Luca
    A method is proposed to identify and localize semantic features like anatomical characteristics or decorations on digital artefacts or fragments, even if the features are partially damaged or incomplete. This technique is based on a novel generalization of the Hough transform. Its major advantages are the relative robustness to noise and the recognition power also in the case of partial features. Our experiments on digital models of real artefacts show the potential of the method, which can work on both 3D meshes and point clouds.
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    Wall Painting Reconstruction Using a Genetic Algorithm
    (The Eurographics Association, 2016) Sizikova, Elena; Funkhouser, Thomas; Chiara Eva Catalano and Livio De Luca
    Global reconstruction of two-dimensional wall paintings (frescoes) from fragments is an important problem for many archaeological sites. The goal is to find the global position and rotation for each fragment so that all fragments jointly "reconstruct" the original surface (i.e., solve the puzzle). Manual fragment placement is difficult and time-consuming, especially when fragments are irregularly shaped and uncolored. Systems have been proposed to first acquire 3D surface scans of the fragments and then use computer algorithms to solve the reconstruction problem. These systems work well for small test cases and for puzzles with distinctive features, but fail for larger reconstructions of real wall paintings with eroded and missing fragments due to the complexity of the reconstruction search space. We address the search problem with an unsupervised genetic algorithm (GA): we evolve a pool of partial reconstructions that grow through recombination and selection over the course of generations. We introduce a novel algorithm for combining partial reconstructions that is robust to noise and outliers, and we provide a new selection procedure that balances fitness and diversity in the population. In experiments with a benchmark dataset our algorithm is able to achieve larger and more accurate global reconstructions than previous automatic algorithms.
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    2D/3D Semantic Annotation of Spatialized Images for the Documentation and Analysis of Cultural Heritage
    (The Eurographics Association, 2016) Manuel, Adeline; Véron, Philippe; Luca, Livio De; Chiara Eva Catalano and Livio De Luca
    The introduction of digital technologies in the documentation methods for cultural heritage has helped to design new tools for the acquisition and management of information collected for multidisciplinary studies. These tools are beginning to emerge as the preferred media for describing, analyzing and understanding the objects of study. Existing solutions for semantic annotation on images, on 3D models or with 2D/3D hybrid methods still reveal themselves today insufficient to tackle the complex problem of annotating heritage artifacts. In this field, the semantic description of the studied objects must be able to rely on a rich and structured representation by on one hand making explicit the morphological complexity of the object and on the other hand by reflecting all aspects conveyed by the acquisitions of scientific imaging. This paper introduces an approach for conducting semantic annotations on 2D images (photography, scientific imaging ...) while facilitating the annotation work with an automatic propagation of these annotations between other correlated representations (2D or 3D) of the object. It is based on a spatial referencing method aiming at the establishment of a continuous 2D/3D projective relationship. The goal of the approach is to define an informative continuum between all phases of observation and description processes ranging from the acquisition of images and spatial data up to the building of semantically-enriched 3D representations. The idea is to insert semantics at all phases of 2D/3D data processing while ensuring a continuous correlation of annotations from a spatial, temporal and morphological point of view.
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    Web-based Exploration of Semantically Rich 3D Decorative Ornament
    (The Eurographics Association, 2016) Echavarria, Karina Rodriguez; Few, Dean; Song, Ran; Chiara Eva Catalano and Livio De Luca
    The aim of this research is to document and provide easy access and exploration to 3D decorative ornament, in order to support its preservation and reuse in future products. The research focuses on the Regency style of ornamentation used to decorate different type of objects such as furniture, and, for example, in architecture. The ambition of the project is to bring this decorative art into the 21st Century by conducting research using the latest 3D access technologies as well as applying additive manufacturing technologies to its reproduction. Therefore, this paper will contribute information about the development of an accessible, web based, digital repository with semantically rich 3D ornamental shapes. This repository has the potential to make the content available to a variety of users, including art historians and designers.
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    Color Restoration of Scanned Archaeological Artifacts with Repetitive Patterns
    (The Eurographics Association, 2016) Gilad-Glickman, Danit; Shimshoni, Ilan; Chiara Eva Catalano and Livio De Luca
    Our work addresses the problem of virtually restoring archaeological artifacts. Virtual restoration is the process of creating a noise-free model of a degraded object, to visualize its original appearance. Our work focuses on restoring the coloring of the object. We considered both 2D and 3D objects, including scans of ancient texts and 3D models of decorated pottery. Our denoising method exploits typical characteristics of archaeological artifacts, such as repetitive decoration motifs and a limited palette of colors. Our classification method is based on minimization of an energy function, which includes a correspondence term, to encourage consistent labeling of similar regions. The energy function is minimized using the Graph-Cuts algorithm.
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    3-D Digital Preservation of At-Risk Global Cultural Heritage
    (The Eurographics Association, 2016) Lercari, Nicola; Shulze, Jurgen; Wendrich, Willeke; Porter, Benjamin; Burton, Margie; Levy, Thomas E.; Chiara Eva Catalano and Livio De Luca
    Recent current events have dramatically highlighted the vulnerability of the world's material cultural heritage. The 3-D Digital Preservation of At-Risk Global Cultural Heritage project, led by Thomas Levy at UC San Diego, catalyzes a collaborative research effort by four University of California campuses (San Diego, Berkeley, Los Angeles and Merced) to use cyberarchaeology and computer graphics for cultural heritage to document and safeguard virtually some of the most at-risk heritage objects and places. Faculty and students involved in this project are conducting path-breaking archaeological research - covering more than 10,000 years of culture and architecture - in Cyprus, Greece, Egypt, Ethiopia, Israel, Jordan, Morocco, Turkey, and the United States. This project uses the 3-D archaeological data collected in numerous at-risk heritage places to study, forecast, and model the effects of human conflict, climate change, natural disasters and technological and cultural changes on these sites and landscapes. The greater challenge undertaken by this project is to integrate archaeological heritage data and digital heritage data using the recently-announced Pacific Research Platform (PRP) and its 10-100Gb/s network as well as virtual reality kiosks installed in each participating UC campus. Our aim is to link UC San Diego and the San Diego Supercomputer Center to other labs, libraries and museums at the other UC campuses to form a highly-networked collaborative platform for curation, analysis, and visualization of 3D archaeological heritage data.
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    3D in-world Telepresence With Camera-Tracked Gestural Interaction
    (The Eurographics Association, 2016) Champion, Erik Malcolm; Qiang, Li; Lacet, Demetrius; Dekker, Andrew; Chiara Eva Catalano and Livio De Luca
    While many education institutes use Skype, Google Chat or other commercial video-conferencing applications, these applications are not suitable for presenting architectural or urban design or archaeological information, as they don't integrate the presenter with interactive 3D media. Nor do they allow spatial or component-based interaction controlled by the presenter in a natural and intuitive manner, without needing to sit or stoop over a mouse or keyboard. A third feature that would be very useful is to mirror the presenter's gestures and actions so that the presenter does not have to try to face both audience and screen. To meet these demands we developed a prototype camera-tracking application using a Kinect camera sensor and multi-camera Unity windows for teleconferencing that required the presentation of interactive 3D content along with the speaker (or an avatar that mirrored the gestures of the speaker). Cheaply available commercial software and hardware but coupled with a large display screen (in this case an 8 meter wide curved screen) allows participants to have their gestures, movements and group behavior fed into the virtual environment either directly or indirectly. Allowing speakers to present 3D virtual worlds remotely located audiences while appearing to be inside virtual worlds has immediate practical uses for teaching and long-distance collaboration.
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    Interactive 3D Exploration of a Virtual Sculpture Collection: an Analysis of User Behavior in Museum Settings
    (The Eurographics Association, 2016) Agus, Marco; Marton, Fabio; Bettio, Fabio; Gobbetti, Enrico; Chiara Eva Catalano and Livio De Luca
    We present a usage analysis of an interactive system for the exploration of highly detailed 3D models of a collection of protostoric mediterranean sculptures. In this system, after selecting the object of interest inside the collection, its detailed 3D model and associated information are presented at high resolution on a large vertical display controlled by a touch-enabled horizontal surface placed at a suitable distance in front of it. The indirect user interface combines an object-aware interactive camera controller with an interactive point-of-interest selector and is implemented within a scalable implementation based on multiresolution structures shared between the rendering and user interaction subsystems. The system has been installed in several temporary and permanent exhibitions, and has been extensively used by tens of thousands of visitors. We provide here a data-driven analysis of usage experience based on logs gathered during a 24 months period in four exhibitions in Archeological museums, for a total of over 75K exploration sessions. The results highlight the main trends in visitor behavior during the interactive sessions, which can provide useful insights for the design of 3D exploration user interfaces in future digital installations.
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    A Practical Reflectance Transformation Imaging Pipeline for Surface Characterization in Cultural Heritage
    (The Eurographics Association, 2016) Ciortan, Irina Mihaela; Pintus, Ruggero; Marchioro, Giacomo; Daffara, Claudia; Giachetti, Andrea; Gobbetti, Enrico; Chiara Eva Catalano and Livio De Luca
    We present a practical acquisition and processing pipeline to characterize the surface structure of cultural heritage objects. Using a free-form Reflectance Transformation Imaging (RTI) approach, we acquire multiple digital photographs of the studied object shot from a stationary camera. In each photograph, a light is freely positioned around the object in order to cover a wide variety of illumination directions. Multiple reflective spheres and white Lambertian surfaces are added to the scene to automatically recover light positions and to compensate for non-uniform illumination. An estimation of geometry and reflectance parameters (e.g., albedo, normals, polynomial texture maps coefficients) is then performed to locally characterize surface properties. The resulting object description is stable and representative enough of surface features to reliably provide a characterization of measured surfaces. We validate our approach by comparing RTI-acquired data with data acquired with a high-resolution microprofilometer.
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    Using Flash Photography and Image-Based Rendering to Document Cultural Heritage Artifacts
    (The Eurographics Association, 2016) Tetzlaff, Michael; Meyer, Gary; Chiara Eva Catalano and Livio De Luca
    A novel image-based rendering system is proposed for documenting cultural heritage artifacts. The system utilizes backscattering photography to acquire the initial pictures and derives estimates for the object's diffuse albedo, surface normals, and the specular reflectivity from the images. A projective texture mapping technique is used to create a novel view of the artifact by blending the original photographs and projecting them onto a mesh that is also derived from the photos. By weighting the images according to how they best depict the manner in which a virtual light source illuminates the artifact's surface, object relighting is also achieved.
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    Semantic Structuring and 3D Modeling of Masonry Structure
    (The Eurographics Association, 2016) Jacquot, Kévin; Luca, Livio De; Chiara Eva Catalano and Livio De Luca
    Studies of architectural heritage require tight control over spatial data. It is an prerequisite for the representation, analysis, conservation and structural restoration of architectural heritage. As regards the morphology of architectural works, the challenge is to move from 3D survey raw data to semantic 3D models. The objective of our project is to develop and experiment a process for the treatment of point clouds in order to create a computational model dedicated to mechanic behavior analysis. Thus, the modeling and semantic structuring is achieved through a knowledge-based approach. Semantic dimension and topological constraints are identified and explicated through the creation of a knowledge model of masonry works. This knowledge is used to implement a set of tools for the reverse engineering of digitized masonry structures.
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    Vis-à-vis with Leonardo. Designing Digital Encounters
    (The Eurographics Association, 2016) Ceconello, Mauro; Spallazzo, Davide; Chiara Eva Catalano and Livio De Luca
    The paper describes, frames and analyses the exhibit Leonardo Plays Leonardo. Milan. Life. Nature. at Fondazione Stelline in Milan. This gesture-based interactive installation, located in the cloister of Palazzo delle Stelline, showcases Leonardo da Vinci and his Milanese years. The project is based on the idea of digital encounter and allows visitors to meet a real size simulated hologram of the Renaissance Master who tells several short stories about his life, his years in Milan and his relationship with nature. The article frames the projects in the context of digital encounters in CH field and embodied interaction systems, describes how the system was realized and presents preliminary data about the usage.
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    3D Semantic Modelling of Scale Models from 2D Historical Plans
    (The Eurographics Association, 2016) Chevrier, Christine; Chiara Eva Catalano and Livio De Luca
    The French collection of Plans-Reliefs, scale models of fortified towns, are an exceptional architectural heritage. Many cities, represented on these plans-reliefs, would like to expose, develop and exploit this historical knowledge. However, the fragility, the dimension of the supports and the exposure conditions make this acquisition difficult. Thus, the creation and the exploitation of a virtual model is an interesting alternative. This paper presents a new method exploiting historical documentary for the 3D semantic modelling of Plans-Reliefs as more than the half physical Plans-Reliefs are currently enclosed in containers in Paris. From 2D plans, ground outlines and facades of buildings are partially-automatically extracted to create automatically the 3D textured model of each building and ground elements (streets, rivers and courtyards). Another specificity of the method is the use of graphical schemes for the description of parametric objects.
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    Representation and Visualization of Urban Fabric through Historical Documents
    (The Eurographics Association, 2016) Samuel, John; Périnaud, Clémentine; Servigne, Sylvie; Gay, Georges; Gesquière, Gilles; Chiara Eva Catalano and Livio De Luca
    Documents serve an important role in understanding change in urban fabric. The available multidimensional (spatial, temporal and thematic) information in these documents narrate not only the various features of the elements of the urban fabric but also notifies their changes during time. CityGML standard is used to spatially and temporally represent the city objects. But it misses features to represent city lifecycle and its linked documents. The first part has been addressed recently. In this article, we propose an extension to CityGML standard to integrate city objects and relevant associated documents. Proposing a solution based on standards permits data interoperability. We also briefly describe how these documents are visualized in our current 3D urban environment prototype built over CityGML.
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    On-site AR Interface based on Web-based 3D Database for Cultural Heritage in Egypt
    (The Eurographics Association, 2016) Yasumuro, Yoshihiro; Matsushita, Ryosuke; Higo, Tokihisa; Suita, Hiroshi; Chiara Eva Catalano and Livio De Luca
    We have been developing a web-based 3D archiving system for supporting the diverse specialties and nationalities needed for carrying out the survey and restoration work of the archaeological project at the Mastaba of Idout in Saqqara, Egypt. Our 3D archiving system is designed for the spontaneous updating, accumulating, and sharing of information on findings in order to better enable frequent discussions, through a 3D virtual copy of the field site that a user can visit, explore, and embed information into, over the Internet. This paper proposes an AR (augmented reality) interface for on-site use to enhance access from mobile devices at the actual site to the archiving system. We utilize SFM (structure from motion) to organize the photos and their shooting viewpoints in 3D space. Then solving the Perspective-n-Point (PnP) problem, a photo taken at the site can be stably matched to the pre-registered photo sets in the archiving system and the archived information is automatically overlaid on the photo with precise perspective, just in the same manner as exploring the virtual version of the site on desktop PCs. This paper shows effective AR representation performance with millimeters precisions of the AR representation at the on-going project site, as well as the implementation details.
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    CHER-Ob: A Tool for Shared Analysis in Cultural Heritage
    (The Eurographics Association, 2016) Shi, Weiqi; Kotoula, Eleni; Akoglu, Kiraz; Yang, Ying; Rushmeier, Holly; Chiara Eva Catalano and Livio De Luca
    The study of cultural heritage involves many different activities, including digital data visualization, information analysis and sharing results. Current technologies focus on providing better tools for data representation and processing, neglecting the importance of analysis and sharing. In this paper, we present a software system, CHER-Ob, which offers powerful tools for evaluation and publication of the results of cultural heritage research, and at the same time supports visualization of various data formats. CHER-Ob also introduces the concept of Cultural Heritage Entity, which serves as a template for cultural heritage research and a model to manage projects. We use typical case studies of cultural heritage research to evaluate the system and demonstrate how it works.
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    Digital Epigraphic Heritage Made Simple: an Android App for Exploring 3D Roman Inscriptions
    (The Eurographics Association, 2016) Ramírez, Manuel; Suárez, Jose Pablo; Trujillo, Agustín; Fernández, Pablo; Santana, Jose Miguel; Ortega, Sebastián; Chiara Eva Catalano and Livio De Luca
    Spain keeps an exceptional epigraphic heritage, dated from the Roman civilization, that integrates thousands of Latin inscriptions nowadays disseminated along the Iberian peninsula. For many purposes such as education, innovation, cataloging, study and dissemination of this type of historical documentation, a clear demand of placing all this epigraphic heritage into modern 3D graphics, internet and mobile devices is increasing. We present the novel 'Epigraphia 3D' for handheld devices, a native Android app for exploring a total of 60 Roman inscriptions from the National Museum of Roman Art (Mérida, Badajoz). The work emphasizes the 3D nature feature for navigating through the inscriptions, by using Glob3 Mobile, an open source GIS framework for visualizing the 3D inscriptions. Besides, an error analysis of the simplified models is tackled.
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    ArchAIDE - Archaeological Automatic Interpretation and Documentation of cEramics
    (The Eurographics Association, 2016) Gualandi, Maria Letizia; Scopigno, Roberto; Wolf, Lior; Richards, Julian; Garrigos, Jaume Buxeda i; Heinzelmann, Michael; Hervas, Miguel Angel; Vila, Llorenc; Zallocco, Massimo; Chiara Eva Catalano and Livio De Luca
    The goals of H2020 project "ArchAIDE: are to support the classification and interpretation work of archaeologists with innovative computer-based tools, able to provide the user with features for the semi-automatic description and matching of potsherds over the huge existing ceramic catalogues. Pottery classification is of fundamental importance for the comprehension and dating of the archaeological contexts, and for understanding production, trade flows and social interactions, but it requires complex skills and it is a very time consuming activity, both for researchers and professionals. The aim of ArchAIDE is to support the work of archaeologists, in order to meet real user needs and generate economic benefits, reducing time and costs. This would create societal benefits from cultural heritage, improving access, re-use and exploitation of the digital cultural heritage in a sustainable way. These objectives will be achieved through the development of: - an as-automatic-as-possible procedure to transform the paper catalogues in a digital description, to be used as a data pool for search and retrieval process; - a tool (mainly designed for mobile devices) that will support archaeologists in recognizing and classifying potsherds during excavation and post-excavation analysis, through an easy-to-use interface and efficient algorithms for characterisation, search and retrieval of the visual/geometrical correspondences; - an automatic procedure to derive a complete potsherds identity card by transforming the data collected into a formatted electronic document, printable or visual; - a web-based real-time data visualisation to improve access to archaeological heritage and generate new understanding; - an open archive to allow the archival and re-use of archaeological data, transforming them into common heritage and permitting economic sustainability. Those tools will be tested and assessed on real-cases scenarios, paving the way to future exploitation.
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    Conservation Digital Report: Standard Documentation in Cultural Heritage
    (The Eurographics Association, 2016) Baratin, Laura; Scicolone, Giovanna; Lonati, Stefano; Chiara Eva Catalano and Livio De Luca
    The 'documentation', in general terms, is the need to gather informations collected for a specific topic so they can be available now and in the future. Obtaining the information is a process that involves many steps: the study, the analysis and the elaboration of the information; all these processes expand and transform the common conception of the term, as not only a mere recording of a phenomenon. In this sense, the documentation becomes an operation 'dynamic, as the basis for further considerations on the object analysed. The documentation of an artwork before restoration can be summarized in three sequential steps: - preliminary documentation to identify the problem and guide the next steps; - systematic and comprehensive documentation, to provide both global and detail vision on the artwork; - additional documentation, with further investigation and checks to be developed over time. The documentation needs, therefore, the correct setup of a systematic structure of informations into a system of classification to store the acquired data, and this process depends on the correct understanding of the theme. In order to standardize the acquisition and disclosure of information, it is therefore necessary to standardize the process of documentation as a whole, from the earliest steps of collection to the presentation of results. 'ConditionReport.it' software system allows the drafting and completion online of an actual 'condition report' for many different kind of artworks, thanks to a flexible and interactive software that can be adjusted according to the different public or private requirements, creating personalized documents. Some examples will illustrate the potential of the system as a standardization of the documentation process for conservation and restoration of different types of cultural heritage, and also as management system for data from different sources.
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    3D Documentation and Semantic Aware Representation of Cultural Heritage: the INCEPTION Project
    (The Eurographics Association, 2016) Giulio, Roberto Di; Maietti, Federica; Piaia, Emanuele; Chiara Eva Catalano and Livio De Luca
    As part of 3D integrated survey applied to Cultural Heritage, digital documentation is gradually emerging as effective support of many different information in addition to the shape, morphology and dimensional data. The implementation of data collection processes and the development of semantically enriched 3D models is an effective way to enhance the dialogue between ICT technologies, different Cultural Heritage experts, users and different disciplines, both social and technical. The possibility to achieve interoperable models able to enrich the interdisciplinary knowledge of European cultural identity is one of the main outcome of the European Project "INCEPTION - Inclusive Cultural Heritage in Europe through 3D semantic modelling", funded by EC within the Programme Horizon 2020. The project ranges from the documentation and diagnostic strategies for heritage protection, management and enhancement, to the 3D acquisition technologies. The development of hardware, software and digital platforms is aimed at representation and dissemination of cultural heritage through ICT processes and BIM addresses to Cultural Heritage assets, up to the implementation of semantic information to a wider and more extensive use of 3D digital models.
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    GRAVITATE: Geometric and Semantic Matching for Cultural Heritage Artefacts
    (The Eurographics Association, 2016) Phillips, Stephen C.; Walland, Paul W.; Modafferi, Stefano; Dorst, Leo; Spagnuolo, Michela; Catalano, Chiara Eva; Oldman, Dominic; Tal, Ayellet; Shimshoni, Ilan; Hermon, Sorin; Chiara Eva Catalano and Livio De Luca
    The GRAVITATE project is developing techniques that bring together geometric and semantic data analysis to provide a new and more effective method of re-associating, reassembling or reunifying cultural objects that have been broken or dispersed over time. The project is driven by the needs of archaeological institutes, and the techniques are exemplified by their application to a collection of several hundred 3D-scanned fragments of large-scale terracotta statues from Salamis, Cyprus. The integration of geometrical feature extraction and matching with semantic annotation and matching into a single decision support platform will lead to more accurate reconstructions of artefacts and greater insights into history. In this paper we describe the project and its objectives, then we describe the progress made to date towards achieving those objectives: describing the datasets, requirements and analysing the state of the art. We follow this with an overview of the architecture of the integrated decision support platform and the first realisation of the user dashboard. The paper concludes with a description of the continuing work being undertaken to deliver a workable system to cultural heritage curators and researchers.
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    Toward a Multimodal Photogrammetric Acquisition and Processing Methodology for Monitoring Conservation and Restoration Studies
    (The Eurographics Association, 2016) Pamart, Anthony; Guillon, Odile; Vallet, Jean-Marc; Luca, Livio De; Chiara Eva Catalano and Livio De Luca
    Close-range photogrammetry is nowadays a common technique applied to acquire 3D data on Cultural Heritage (CH) artifacts. Image-based modeling are indeed providing useful resources for the documentation and the conservation but it is also set more recently as a monitoring tool that could help the decision making in term of restoration. The 3D footprint restitutes as a point cloud, the appearance according to a definite spatial resolution and at a given time, the visible surface of an artifact. Nevertheless, different techniques of scientific imaging are also used to obtain complementary information. This paper explores a multimodal approach of the photogrammetric survey and data processing to reach a multidimensional data integration (i.e. spatial, temporal and, or spectral).
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    Accelerating Point Cloud Cleaning
    (The Eurographics Association, 2016) Mulder, Rickert L.; Marais, Patrick; Chiara Eva Catalano and Livio De Luca
    A laser scanning campaign to capture the geometry of a large heritage site can produce thousands of high resolution range scans. These must be cleaned to remove noise and artefacts. To accelerate the cleaning task, we can i) reduce the time required for batch-processing tasks, ii) reduce user interaction time, or iii) replace interactive tasks with more efficient automated algorithms. We present a point cloud cleaning framework that attempts to improve each of these aspects. First, we present a novel system architecture targeted point cloud segmentation. This architecture represents 'layers' of related points in a way that greatly reduces memory consumption and provides efficient set operations between layers. These set operations (union, difference, intersection) allow the creation of new layers which aid in the segmentation task. Next, we introduce roll-corrected 3D camera navigation that allows a user to look around freely while reducing disorientation. A user study showed that this camera mode significantly reduces a user´s navigation time between locations in a large point cloud thus accelerating point selection operations. Finally, we show how boosted random forests can be trained interactively, per scan, to assist users in a point cleaning task. To achieve interactivity, we sub-sample the training data on the fly and use efficient features adapted to the properties of range scans. Training and classification required 8-9s for point clouds up to 11 million points. Tests showed that a simple user-selected seed allowed walls to be recovered from tree and bush overgrowth with up to 92% accuracy (f-score). A preliminary user study showed that overall task time performance was improved. The study could however not confirm this result as statistically significant with 19 users. These results are, however, promising and suggest that even larger performance improvements are likely with more sophisticated features or the use of colour range images, which are now commonplace.
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    Interdisciplinary Dialogue Towards an Enhanced Understanding of Optical Techniques for Recording Material Cultural Heritage - Results of a COST Action
    (The Eurographics Association, 2016) Boochs, Frank; Bentkowska-Kafel, Anna; Wefers, Stefanie; Chiara Eva Catalano and Livio De Luca
    The COST Transdomain Action TD1201, Colour and Space in Cultural Heritage [COSb], 2012-2016, contributes to the conservation and preservation of cultural heritage (CH) by enhancing shared understanding, between experts from various disciplines, of the spectral and spatial recording of physical CH objects. Optimal recording, adapted to the requirements of a CH application, should involve experts from multiple disciplines and industries. Such an interdisciplinary approach is necessary "in order to protect, preserve, analyze, understand, model, virtually reproduce, document and publish important CH in Europe and beyond" [COSa]. In order to fulfil this goal, experts from 28 European countries entered into a multidisciplinary dialogue trying to establish a common understanding of spatial and spectral recording techniques best suited for particular CH applications. Several COSCH groups worked on the characterisation of spatial and spectral recording techniques; the use of algorithms and processing chains; and requirements of analysis, restoration and visualisation of CH surfaces and objects. A range of possible applications of optical techniques, now available to recording and examination of CH objects, have been tested through six COSCH case studies [BKM17]. These projects have exposed the challenges of common understanding of the processes involved, and differences in disciplinary research needs and methods. A number of issues have been identified, sometimes as basic as lack of common specialist terminology and relevant technical standards. The complexity of the field became apparent in the course of designing COSCHKR, ontological knowledge representation, which employs semantic technologies. After four years of interdisciplinary dialogue, COSCH leaves a legacy that will help the dialogue to continue, technology to develop, and specialist training to better respond to the actual needs of the interdisciplinary CH research communities.
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    3D Object Spatial- consistent Texture Maps Appropriate for 2D Image Processing
    (The Eurographics Association, 2016) Ioannakis, George; Koutsoudis, Anestis; Chamzas, Christos; Chiara Eva Catalano and Livio De Luca
    The aim of this work is to generate a spatial-consistent UV maps of a 3D object's texture suitable for 2D image processing algorithms. An approach to produce such a fully spatially consistent UV mapping suitable for image processing based on the planar parameterisation of the mesh is presented. The mesh of a 3D model is parametrised onto a unit square 2D plane using computational conformal geometry techniques. The proposed method is genus independent, due to an iterative 3D mesh cutting procedure. The selection of the initial seed vertex for the mesh-cut is not essential for the parameterisation of the geometry, however it affects heavily the appearance of the obtained texture map. In this work we attempt to determine such a seed vertex, in order the UV map to be suitable for image processing. Having the texture of a 3D model depicted on a spatially continuous two dimensional structure enables us to efficiently apply well known image processing based techniques and algorithms. Our method is applied on a 3D digital replica of an ancient Greek Lekythos vessel.