DH2015 - Digital Heritage International Congress 2015

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The Mayan city of Calakmul - Interactive Showcases
(IEEE, 2015) Ruiz-Rodarte, Rocio; Sofia Pescarin and Pedro Cano and Alfredo Grande
The Interactive Kiosk is part of a large project of virtual recreation made from the findings of the archaeological site of Calakmul, a Mayan city which existed between 800 BC to 900 AD, in Mexico's Yucatan Peninsula.
Create Your Menu - Discovering Traditional Recipes
(IEEE, 2015) Gagliardi, Isabella; Artese, Maria Teresa; Gabriele Guidi and Roberto Scopigno and Juan Barceló
Expo2015 has focused attention on the culinary memories, healthy food and traditional methods, handed down over the years, to cultivate and use what nature has to offer, in a sustainable way. In this paper we present the application Create your menu (the work is still in progress) able to query the ECHI-ICH database, an inventory of Intangible Cultural Heritage, to find recipes/foods and compose the results in an healthy menu. The application is able to retrieve, within the cards of the ECHI-ICH inventory, those that are related to foods, then identify the main ingredients and extract the nutrients, using open data about food, to compose traditional and healthy meals.
Crowd-sourced Mobile Phone Images For Built Heritage Conservation Monitoring
(IEEE, 2015) Bearman, Greg; Ma, Wensen; Walton, Marc; Cossairt, Oiver; Doehne, Eric; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
We propose quantifying color in crowd- sourced images from mobile phones to monitor built heritage over time. Time-lapse color movies in CIE color space can provide information on a large range of deterioration mechanisms, including soiling, biofilm growth, weathering and vandalism. Citizen science can create large-scale geographical coverage of sites difficult to obtain any other way. We show that the color accuracy of current phones is sufficient for this purpose and demonstrate image registration, color calibration and change detection using mobile phone cameras. For accurate color, a calibration target of known, stable colors need to be in the image field of view.
Application of georeferenced Archaeological Information Systems for Archaeological Digital Heritage - The Auxiliary Fortress of Carnuntum (Lower Austria)
(IEEE, 2015) Wallner, Mario; Juan, Torrejón Valdelomar; Neubauer, Wolfgang; Kucera, Matthias; Brandtner, Joachim; Sandici, Vlad; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
Non-destructive prospection methods provide a powerful toolbox to explore Archaeological Heritage while it is still protected untouched below the actual surface. Due to recent technical developments in high resolution large scale non-invasive archaeological prospection by the Ludwig Boltzmann Institute for Archaeological Prospection and Virtual Archaeology (LBI ArchPro) like motorized multi-channel Ground Penetrating Radar (GPR), multi-sensor Magnetometry or Airborne Remote Sensing it became possible to efficently explore square kilometers of archaeological landscapes in high detail. Using a georeferenced Archaeological Information System (AIS) to compare, combine and interpret the archaeological information embedded within prospection and excavation data enable spatio-temporal analyses to derive the cultural development of an archaeological landscape.
Color and Hyperspectral Image Segmentation for Historical Documents
(IEEE, 2015) Ciortan, Irina Mihaela; Deborah, Hilda; George, Sony; Hardeberg, Jon Yngve; Gabriele Guidi and Roberto Scopigno and Pere Brunet
Several historical documents from the collection of the National Library of Oslo were acquired using a hyperspectral scanner. While each of the documents has its specific characteristics, requiring different image preprocessing steps, the common goal for all documents is to increase their legibility. The aim of this study is to show the advantage of hyperspectral imaging compared to traditional color imaging, in particular for the task of ink separation using distance-based classification method.
Etruscan Virtual Experience
(IEEE, 2015) Guidazzoli, Antonella; Liguori, Maria Chiara; Luca, Daniele De; Imboden, Silvano; Bellavia, Giovanni; Verri, Luigi; Rivalta, Alessandro; Caraceni, Simona; Sofia Pescarin and Pedro Cano and Alfredo Grande
Recently the Etruscans have gained increasing visibility thanks to various events and initiatives. Cineca Visual Information Techonology laboratory (VisitLab) is active in this effort by developing installations, CG movies and other ICT applications aimed at further raising public awareness of the Etruscan civilisation.
A New Approach to Digitalization and Data Management of Cultural Heritage Sites
(IEEE, 2015) Ziparo, Vittorio Amos; Cottefoglie, Fabio; Calisi, Daniele; Giannone, Francesca; Grisetti, Giorgio; Leibe, Bastian; Proesmans, Marc; Salonia, Paolo; Gool, Luc Van; Ventura, Claudia; Stachniss, Cyrill; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
In this paper, we describe a novel approach for acquiring and managing digital models of archaeological sites. More in detail, we present an approach to digitization based on a robotic platform and a cloud-based information system. Our robot is the result of over two years of efforts by a group of cultural heritage experts, computer scientists and roboticists. Exploiting the large and heterogeneous amount data provided by the robotic platform requires this data to be managed, organized and analyzed. To this extent we developed ARIS (ARchaeological Information System), a software that exploits modern information retrieval and machine learning systems.
Digital Panorama
(IEEE, 2015) Borra, Davide; Gabriele Guidi and Roberto Scopigno and Pere Brunet
In 1787 it was Robert Barker to invent the term Panorama, still used to today all over the world to determine a large view, up until 360 degrees. His show has traveled European cities and the American new frontier, letting visitors enter into far painted cities or ancient history episodes. The Cinema Museum, in the movies archaeology section, digitally proposes the same experience. A small cylindrical cave houses the Digital Panorama, a semi-immersive environment, which creates visual and audio panoramas and back in time journeys into Turin cinema history. The visual-tactile interface design is of note because it has been designed to be equally available both by blind and seeing people, as for the Cinema Museum philosophy a museum for all. This paper illustrates the project critical points, the choices operated during the operating process and the interface reviews.
Nuragic Sacred Well of Santa Cristina in Sardinia - From the 3D Survey Analysis to Labour Investment
(IEEE, 2015) Vico, Lola; Hermon, Sorin; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
This paper relates an ongoing research carrying out at the Cyprus Institute -STARC, focusing on the mobilization of labour required for Santa Cristina sacred well construction, during the Bronze Age period of The Nuragic Bronze Age in Sardinia on the basis on the 3D survey analysis. It adopts a framework for systematically calculating the process and the labour cost of construction, using such cost to deduce relative differences in political control among groups and communities through labour control. The labour cost will be use also for suggest specific systems of recruitment that may have been in place for mobilizing workers, and to argue that sacred well construction would not have been particularly burdensome or demanding for local population.
Knowledge-based Approach for the 3D Modeling of Masonry Structures
(IEEE, 2015) Jacquot, Kevin; Messaoudi, Tommy; Luca, Livio De; Gabriele Guidi and Roberto Scopigno and Juan Barceló
In architectural heritage field, the control over metric data is fundamental. Indeed the interpretability of geometrical concepts, the criteria and methods to structure information are the first step for the analysis and simulation for the conservation of ancient buildings. The main barrier is to move from survey raw data to 3D models that are understandable. To overcome this issue a knowledge-based approach is developed to carry out a reverse engineering for digitised masonry structures.
Augmented Reality and Storytelling in Heritage - Application to Public Gardens
(IEEE, 2015) Guimaraes, Francisco; Figueiredo, Mauto; Rodrigues, Jose; Gabriele Guidi and Roberto Scopigno and Pere Brunet
Gardens, given its location, history, fauna, flora and environmental scenography, are places that are part of a natural heritage with its own cultural identity. These places are object of preservation, study and dissemination, such as cultural heritage, but in this case with a collection of natural artifacts exhibition alive and dynamic that allows user's natural immersion in the exhibition space. To create a personal user interaction with this natural heritage space is important to capture the story and aesthetics, and find other ways to immerse the user in the space. To that end, this article combines Augmented Reality technologies and concepts of Transmedia Storytelling applied to Gardens as a framework of media-art digital artifact applied to Caloust Gulbenkian Foundation Garden in Lisbon / Portugal.
High-Quality Point Based Rendering Using Fast Single Pass Interpolation
(IEEE, 2015) Schütz, Markus; Wimmer, Michael; Gabriele Guidi and Roberto Scopigno and Pere Brunet
We present a method to improve the visual quality of point cloud renderings through a nearest-neighbor-like interpolation of points. This allows applications to render points at larger sizes in order to reduce holes, without reducing the readability of fine details due to occluding points. The implementation requires only few modifications to existing shaders, making it eligible to be integrated in software applications without major design changes.
Remote Sensing Applied to the Study of the Cultural and Natural Heritage in the Mesoamerican Corridor
(IEEE, 2015) Rejas, Juan Gregorio; Bonatti, Javier; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
The aim of this work is an approach using multisource remote sensing techniques to study and to evaluate the natural and cultural heritage within the framework of a global research in the Mesoamerican Corridor. Remote sensing, as a non-destructive technique, enable the measurement of spectral anomalies and biophysical parameters which may be indicative of the state of preservation of the big manmade structures, natural ecosystems or diseases that affect them. We investigate the spectral characteristics of the reflectance and emissivity in several multispectral scenes of the pre-Hispanic archaeological sites of the Guayabo (Costa Rica) and Fonseca Gulf (Nicaragua, Honduras and Salvador) what supposed an ancestral migration route. Spectral ranges of the visible-near infrared (VNIR), shortwave infrared (SWIR) and thermal infrared (TIR) from hyperspectral data cubes of HyMAP and MASTER have been used. Spectral patterns and thermal anomalies have been analyzed, as well as the capabilities of DInSAR as evidences of buried remains or pathologies in the natural environment. First results, land cover changes and their consequences in the cultural heritage study and protection are discussed.
Procedural Modeling for Ancient Maya Cityscapes - Initial Methodological Challenges and Solutions
(IEEE, 2015) Richards-Rissetto, Heather; Plessing, Rachel; Gabriele Guidi and Roberto Scopigno and Juan Barceló
Digital reconstruction of 3D cityscapes is expensive, time-consuming, and requires significant expertise. We need a 3D modeling approach that streamlines the integration of multiple data types in a time-efficient and low-cost manner. Procedural modeling-rapid proto-typing of 3D models from a set of rules- offers a potential solution to this problem because it allows scholars to create digital reconstructions that can be quickly updated and used to test and formulate alternative hypotheses that are derived from and linked to underlying archaeological data. While procedural modeling is being used to visualize ancient Roman, Etruscan, and Greek cities, in the Maya region the approach has only been applied to reconstructions of individual buildings and not an entire city. In this paper, we present initial methodological challenges and solutions to procedural modeling of ancient Maya cityscapes using the UNESCO World Heritage Site of Copan, Honduras as a case study.
Bridging Monuments Through Digital Repository and Graphic Reconstruction Methodologies, The Digital Enhancement Project of Argolid, Arcadia and Corinthia Castles, Greece
(IEEE, 2015) Athanasoulis, Demetrios; Simou, Xeni; Georgiou, Antonios; Sfika, Anna; Klotsa, Vasiliki; Zirogianni, Theodora; Theodoropoulos, Chrysostomos; Deligianni, Eleni-Olga; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
The former 25th Ephorate of Byzantine Antiquities in Greece has long been engaged in the research of medieval fortified architecture and in tailoring of restoration and promotion projects for particular monuments. Digital Enhancement of Argolid, Arcadia and Corinthia castles is an ongoing project, currently carried out under the jurisdiction of the newly established Argolid Ephorate of Antiquities. It concerns the creation of an archaeological-centered webplatform and smart-phone application for researchers and public, containing 105 sites of castles, fortified locations and individual towers, scattered within the geographical borders of the aforementioned prefectures. The current essay examines how the documentation methodology leads the visitor to extract comparative scientific data concerning the archaeological sites and fortified architecture in general by presenting what is the platform's contribution to visualizing archaeological space.
GIS-Based Mapping of Archaeological Sites with Low-Altitude Aerial Photography and Structure from Motion - a Case Study from Southern Jordan
(IEEE, 2015) Howland, Matthew; Liss, Brady; Najjar, Mohammad; Levy, Thomas; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
Structure from Motion (SfM) is one of the trendiest techniques in archaeology today. Archaeologists across the world are increasingly applying techniques of digital photogrammetry to record archaeological sites in three-dimensions, often for the sake of documenting active excavations or for acquiring a new perspective on sites. This paper describes one such recording campaign, conducted as part of the Edom Lowlands Regional Archaeology Project (ELRAP) in southern Jordan, under the direction of T.E. Levy and M. Najjar. ELRAP team members recorded the Iron Age copper production site of Khirbat al-Jariya with low-altitude balloon photography for the purpose of SfM modeling and production of 2D GIS data. This data served as an excellent basis for comprehensive site mapping, substantially improving on the results of previous, traditionally-conducted mapping efforts. We suggest that aerial SfM-based mapping approaches are the best method currently available for exhaustive site mapping.
Engaging Community Members with Digitally Curated Social Media Content at an Arts Festival
(IEEE, 2015) Shih, Patrick C.; Han, Kyungsik; Carroll, John; Gabriele Guidi and Roberto Scopigno and Pere Brunet
Capturing, uploading, and presenting social media content online have become the standard way for people to share their experiences with friends, family members, and others. In this paper, we describe our effort to extract, aggregate, and visualize, in a smartphone app, real-time and historical hyperlocal social media discussions and photos created at a regional arts festival that attracted over 100,000 visitors over a period of 5 days. Participants reported that the resulting content enriched their festival experience, and that it helped to create a social scaffold encouraging them to further engage and interact with others both physically and virtually through sharing even more user-contributed content.
A Proposal for A Digital and Physical Installation of Techno-Scientific-Art Research: Open Access Antiquarianism at the Digital Heritage Expo 2015
(IEEE, 2015) Richter, Ashley; Hess, Mike; Petrovic, Vid; Sofia Pescarin and Pedro Cano and Alfredo Grande
Open Access Antiquarianism is a collaboration between archaeologists, artists, computer scientists, and structural engineers to creatively push the boundaries at the intersection of art and technology to evaluate, engage, and preserve the Past, while simultaneously building and refining the technology of the future so that it can be used to make the Past accessible to the Present, and therefore part of the future social sphere.
Bringing Collections to the Digital Era - 3 Examples of Integrated High Resolution Digitisations Projects
(IEEE, 2015) Mathys, Aurore; Brecko, Jonathan; Spiegel, Didier Van den; Cammaert, Laurence; Semal, Patrick; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
One of the primary concerns of museums nowadays is the digitisation of the collection to enhance conservation, accessibility and dissemination. We present in this paper 3 examples of collection digitisations carried out by 2 Belgian federal museums in the framework of the DIGIT-03 program. The first part details the creation of a 3D virtual museum, the second concerns focus stacking of type specimens and the last is the digitisation in 2D and 3D of a complete collection.
Interactive 3D Application for the multimedia valorization of the restoration process of the Fountain of the Lions of the Alhambra based on 3D laser scanner registration
(IEEE, 2015) Cano, Pedro; Garcìa, Manuel; Torres, Juan Carlos; Lamolda, Francisco; Perez, Silvia; Sofia Pescarin and Pedro Cano and Alfredo Grande
In the intervention for the restoration of the Fountain of the Lions, the Council of the Alhambra and Generalife developed an application using all available techniques for its graphic documentation, employing a multiplicity of processes that complement each other and allow to obtain a full registration of all works performed.

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