DH2015 - Digital Heritage International Congress 2015

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https://diglib7.eg.org/handle/10.2312/14457

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3D and Challenging Materials
(IEEE, 2015) Mathys, Aurore; Brecko, Jonathan; Spiegel, Didier Van den; Semal, Patrick; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
Museum collections are composed of many different materials with different optical properties. These properties are an important factor to consider when using 3D digitisation as museum artefacts cannot be sprayed with an opaque coating to avoid reflection and facilitate 3D scanning. In this paper we review a wide variety of materials and techniques in order to propose guidelines for the 3D digitisation of different materials.
A 3D Kinematic Model for Assessing the Seismic Capacity of the Frigidarium of the Baths of Diocletian
(IEEE, 2015) Sadholz, Aaron; Muir, Christopher; Perucchio, Renato; Gabriele Guidi and Roberto Scopigno and Juan Barceló
The Frigidarium of the Baths of Diocletian in Rome is one of the largest extant heritage structures built with unreinforced masonry material. The structural capacity of the Frigidarium to resist lateral accelerations generated by an earthquake is assessed by pushover analysis based on a limit kinematic approach. A 3D solid model of the Frigidarium modular section is subdivided into rigid blocks by cutting planes corresponding to the fracture surfaces determined by a preliminary nonlinear FE analysis. The blocks are then connected by rotational hinges to form a mechanism anchored to a base platform that translates horizontally with increasing acceleration. The mechanism, initially in static equilibrium, is eventually driven into dynamic conditions by the inertial forces generated by the moving platform. The intensity of the acceleration at the limit of the static condition (i.e., at the moment of impending motion) defines the structural capacity. A series of tests is conducted to evaluate the sensitivity of the model to changes in fracture orientation and hinge location, and to the introduction of friction between two blocks. Based on the current results, the capacity can be assessed at about 0.4g.
3D movie of the house of Caecilius Iucundus in Pompeii
(IEEE, 2015) Lindgren, Stefan; Ferdani, Daniele; Touati, Anne-Marie Leander; Demetrescu, Emanuel; Sofia Pescarin and Pedro Cano and Alfredo Grande
The computer graphic movie about the House of Caecilius Iucundus was produced for the exhibition Pompeji, held at the Millesgården, Stockholm, form sept. 2014 to may 2015. The exhibition invited to experience Pompeian domestic space by means of a scenography partly reconstructing the House of Cacilius Iucundus, by means of original objects, small finds and wall decorations, found in his house, and by means of the overall visualization offered by the movie.
3D Reconstruction for Museums and Scattered Collections (Applied Research for the Alexandre Lenoir's Museum of French Monuments)
(IEEE, 2015) Autran, Camille; Guéna, François; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
This research aims to develop cheap and quite easyto- use methods for 3D museology. We worked with specialists of various fields to pool everyone's knowledge at its very best: historians, curators, and computer scientists built digital tools for enhanced communication, teaching and research for museums. We will show one of our experiment to show what digital technologies and 3D development can bring to the cultural world.
3D Reconstruction with Fisheye Images: Strategies to Survey Complex Heritage Buildings
(IEEE, 2015) Covas, João; Ferreira, Victor; Mateus, Luís; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
Over the last few decades photogrammetry and laser scanning have been frequently considered valuable tools for creating three-dimensional models from which metric and radiometric information can be derived for the survey of cultural heritage buildings, reverse engineering, space exploration and other areas. However reconstructing old heritage buildings digitally may be a challenging task especially when the shape, geometry and volume of these buildings are intrinsically complex therefore requiring specific methods or ad-hoc solutions. Medieval castles are typical constructions that exhibit these kinds of features with inaccessible locations, bridges, wide areas followed by small and limited spaces, battlements, towers and walls occluded by vegetation. This variety of problems can prolong the time required to complete the tasks when using laser scanning or photogrammetry with conventional lenses. In this paper we present a research of use of fisheye lenses in photogrammetry, for capturing medieval castles' geometric and radiometric information of hard to reach places. We conclude that this reduces the total time needed to capture the same amount of information gathered with other instruments, it allows replacing the usage of Unmanned Aerial Vehicles (UAV) in low flight situations, makes the survey connection between areas of a building easier, reduces the total number of images and allows making a general fast survey. The castles illustrated in this paper are the Castle of Sesimbra and the Castle of The Convent of Christ, both in Portugal.
3D Visualisation of Archaeological Structures from Geophysical Explorations in Alarcos site Sector III (Ciudad Real)
(IEEE, 2015) Sánchez, José Luis; Sánchez, Jesús; Merlo, Óscar; Gabriele Guidi and Roberto Scopigno and Juan Barceló
In this work, the results of the application of geophysics to the Alarcos' Sector III - one of the most important archaeological sites in La Mancha - are presented. The geophysical exploration was carried out with a two-fold objective: to obtain a stratigraphic characterisation of the Sector III subsoil, and to test the efficiency and limitations of the geophysical methods applied. These methods are Ground Penetrating Radar (GPR) and Electrical Resistivity Tomography (ERT). Our research confirmed the potential existence of buried structures in the subsoil, which shows the potential of the combined used of geophysical techniques in the search for archaeological structures in site's subsoil in a non-destructive manner. The results are shown in different 3D images which allow the characteristics and spatial distribution of the buried structures to be determined, optimising therefore the planning of future archaeological actions.
3DHOG for Geometric Similarity Measurement and Retrieval for Digital Cultural Heritage Archives
(IEEE, 2015) Eckeren, Katharina van; Tausch, Reimar; Santos, Pedro; Fellner, Dieter W.; Gabriele Guidi and Roberto Scopigno and Juan Barceló
With projects such as CultLab3D, 3D Digital preservation of cultural heritage will become more affordable and with this, the number of 3D-models representing scanned artefacts will dramatically increase. However, once mass digitization is possible, the subsequent bottleneck to overcome is the annotation of cultural heritage artefacts with provenance data. Current annotation tools are mostly based on textual input, eventually being able to link an artefact to documents, pictures, videos and only some tools already support 3D models. Therefore, we envisage the need to aid curators by allowing for fast, web-based, semi-automatic, 3D-centered annotation of artefacts with metadata. In this paper we give an overview of various technologies we are currently developing to address this issue. On one hand we want to store 3D models with similarity descriptors which are applicable independently of different 3D model quality levels of the same artefact. The goal is to retrieve and suggest to the curator metadata of already annotated similar artefacts for a new artefact to be annotated, so he can eventually reuse and adapt it to the current case. In addition we describe our web-based, 3D-centered annotation tool with meta- and object repositories supporting various databases and ontologies such as CIDOC-CRM.
4D Investigation of Digital Heritage - An Interactive Application for the Auxiliary Fortress of Carnuntum
(IEEE, 2015) Juan, Torrejón Valdelomar; Matthias, Kucera; Wallner, Mario; Brandtner, Joachim; Sandici, Vlad; Neubauer, Wolfgang; Gabriele Guidi and Roberto Scopigno and Juan Barceló
Innovative methods (e.g. geophysical prospection, remote sensing prospections, 3D modeling and visualization) adapted to Cultural Heritage and Archaeology open a wide field of research which needs appropriate techniques, skills and workflows. However, Virtual Archaeology (VA) must be understood not only as a passive instrument for visualizing the data and results but rather as a digital tool that provides an interactive four dimensional framework where the user is able to visualize, explore, analyze and evaluate both raw-data and 3D reconstructions. In this paper we would like to present a new developed interactive application called Arch4DInspector developed by the Ludwig Boltzmann Institute for Archaeological Prospection and Virtual Archaeology (LBI ArchPro).
A.I.M. - Advanced Interactive Map
(IEEE, 2015) Maiellaro, Nicola; Gabriele Guidi and Roberto Scopigno and Juan Barceló
This paper discusses the ongoing development of a tool to produce - through an authoring system - an interactive map with advanced functions. A first map has been produced in collaboration with the Municipality of Cetinje (Montenegro); a map of the Municipality of Gioia del Colle is still under construction with students of a secondary school. These activities concern the Mu.S.A. (Must See Advisor) Project, a cultural heritage booster aiming at giving visibility to less known sites - as potential tourism destinations - by valuing knowledge from selected communities.
AiRome
(IEEE, 2015) Fanini, Bruno; D'Annibale, Enzo; Sofia Pescarin and Pedro Cano and Alfredo Grande
The AiRome installation is composed by two connected gesture-based applications that aim to create a shared experience and a collaborative gameplay among visitors.
Alchemy in 3D - A Digitization for a Journey Through Matter
(IEEE, 2015) Callieri, Marco; Pingi, Paolo; Potenziani, Marco; Dellepiane, Matteo; Pavoni, Gaia; Lureau, Aurelia; Scopigno, Roberto; Gabriele Guidi and Roberto Scopigno and Pere Brunet
In this work, we will present the outcomes of the 3D diagnostic investigations carried out on the painting Alchemy by Jackson Pollock. Thanks to an accurate digitization and a careful processing, we were able to generate a very precise high-resolution 3D model that proved to be useful in different stages of the diagnostic and conservation campaign. The 3D model was integrated in the conservation process, along with the other diagnostic investigations; the geometric data was also used to produce images and video sequences for dissemination purposes. The most interesting aspect of the work, however, was the idea of going beyond photo-realism and the use of the scanner-measured geometry to try to interpret and understand the traces and signs on the surface of the painting, in relation with the gestures and techniques used by Pollock while painting this masterpiece. Combining the knowledge of the curators and the metric data gathered in the digitization, we were able to discover and validate several interesting aspects of the painting, in the direction of trying to better understanding the painting process which was, in the idea of the artist, an essential part of the artwork. The 3D model of the artwork played a central role also in the temporary exhibition created for the dissemination of the conservation and the diagnostic campaign to the museum visitors. This was also done following the idea of using the geometry to explain the gestures, actions and techniques of Jackson Pollock at work. The 3D model was used to create an interactive kiosk, to have the visitors navigate the model and access explanations of relevant geometrical details and to produce a 1:1 physical reproduction to give the public the possibility to physically interact with the artwork.
AMICA - Virtual Reality as a Tool for Learning and Communicating the Craftsmanship of Engraving
(IEEE, 2015) Carrozzino, Marcello; Lorenzini, Cristian; Evangelista, Chiara; Tecchia, Franco; Bergamasco, Massimo; Gabriele Guidi and Roberto Scopigno and Juan Barceló
We hereby present the progress of the work ongoing on AMICA, a project aiming at disseminating to the public at large the activities related to the craft of engraving and printmaking by means of an Immersive Virtual Reality (VR) system. The final platform will constitute not only a means for communicating and promoting such activities, but also an interactive learning tool to be used in vocational courses.
Analyzing the Evolution of Deterioration Patterns - A First Step of an Image-based Approach for Comparing Multitemporal Data Sets
(IEEE, 2015) Peteler, Friederike; Gattet, Eloi; Bromblet, Philippe; Guillon, Odile; Vallet, Jean-Marc; Luca, Livio De; Gabriele Guidi and Roberto Scopigno and Juan Barceló
When documenting and analyzing cultural heritage, the monument states can be described by multitemporal data sets, which however present a complication for the elaboration and examination process. This difficulty leads to the necessity to improve the analyze process in order to expand the documentation process and help experts to enrich and share information about the historical buildings. Therefore an approach of change measurement, which supports the chronical comprehension of a building by visualizing and quantifying the dimensional temporal effects was elaborated, where the analyze process of a multitemporal data set was based on the interpretation of depth map images. These maps were obtained by generating ortho images of an object that was created on purpose by setting up an experimentation to acquire a multitemporal data set. This approach is the first step of a wider ongoing research about change detection processes on multitemporal data sets.
Animating History - Animation Styles and Techniques of the Audiovisuals for the National Archeological Museum
(IEEE, 2015) Ranchito, El; Sobre, Sopa de; National, Museo Arqueologico; Sofia Pescarin and Pedro Cano and Alfredo Grande
Digital techniques are very versatile and, going beyond hyper-realism, allow the creation of all types of very expressive solutions. The 19 audiovisual pieces made for the National Archeological Museum deal with various themes using different approaches but share the use of mixed animation techniques in which drawing, illustration and animation are integrated with 3D and digital composition in search of appropriate and innovative languages.
Application of 3D Technology For The Documentation of Late Medieval Wall Paintings in the Church of St. George in Lovran, Croatia
(IEEE, 2015) Krulić, Kristina; Novak, Zlatan; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
In recent years there has been a lot of interest in the application of 3D spatial data acquisition techniques such as 3D laser scanning and photogrammetry. Among the most demanding and challenging tasks in the protection of cultural heritage is the drawing up of detailed 3D documentation of wall paintings. The application of new technologies in conservation research and the documentation of late medieval wall paintings in the sanctuary of the church of St. George in Lovran is a process conducted periodically, depending on the financial and technical abilities at a given moment, and represents the first example of a comprehensive documentation of a national cultural heritage monument. This project shows how a combination of cutting-edge technologies in 3D spatial data acquisition was applied to document this remarkable historical piece of art.
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.
The Application of Service Orientation on a Mobile AR Platform - A Museum Scenario
(IEEE, 2015) Rattanarungrot, Sasithorn; White, Martin; Jackson, Ben; Gabriele Guidi and Roberto Scopigno and Pere Brunet
Mobile augmented reality has become an influential tool for digital content representation in terms of enhancing users' experience and improving the adaptability and usability of augmented reality applications. In our research, we have developed a service oriented mobile AR architecture for multiple applications, such as a museum interactive or web app. Our solution enhances closed platform mobile AR applications to create more flexible mobile AR clients that efficiently support content acquisition and utilization of third party digital media contents on a real scene. Our example web service framework on a mobile AR client exploits specific museum (e.g. Victoria and Albert Museum) or third party APIs (e.g. Google Maps) to aggregate data from participating web service providers. A typical media API content request is sent to a content provider to obtain a targeted cultural object's associated media contents such as 3D models, images, text, videos and metadata. Acquired contents are then visualized in both VR and AR environments and consumed by mobile users. Other examples of supporting modules include photogrammetry based 3D reconstructions based on available commercial or open source web services and personalization that allow a user to request rich media, e.g. 3D models, and associated metadata, of a targeted cultural object for exploiting in a 'saved museum exhibition'.
Archive To Repertoire - Motion Capture and Motion Sensing Data for Digital Intangible Heritage (DIH)
(IEEE, 2015) Khan, Muqeem; Gabriele Guidi and Roberto Scopigno and Juan Barceló
This study investigates the transformation of digital documentation of Kung Fu into an interactive performative space for public engagement. The study creates an interface for learning the repertoire of forms from significant lineages from the south Chinese traditions-contributing to the perpetuation of this art form. The investigation will contribute to the theoretical understandings of the relationships between archive and repertoire, specifically in relation to performance and intangible heritage. The intricate user interaction in this study enforces the visitor's perception that the Kung Fu instructor is present behind the screen, which simulates physical intimacy.
ARIS - A Robotic Approach to Digitization of Indoor and Underground Cultural Heritage Sites
(IEEE, 2015) Calisi, Daniele; Giannone, Francesca; Ventura, Claudia; Salonia, Paolo; Cottefoglie, Fabio; Ziparo, Vittorio Amos; Sofia Pescarin and Pedro Cano and Alfredo Grande
A robot to digitize indoor and underground cultural heritage sites: a novel approach for acquiring and managing digital models of archaeological sites. Three technologies will be presented for this occasion: a robotic system for digitization of archaeological sites (DigiRo), a cloud-based archaeological information system (ARIS), and an immersive virtual reality apps for virtually visiting the digitized sites.
Assistive Visual Framing in 3D Dense Points Cloud
(IEEE, 2015) Habibi, Zaynab; Caron, Guillaume; Mouaddib, El Mustapha; Gabriele Guidi and Roberto Scopigno and Juan Barceló
Recent progress in digital technology and its popularity in the context of cultural heritage are contributing to the emergence of several applications using a very large and dense digitization of archaeological sites or historical monuments. Navigation in such virtual environment is difficult especially for novice users. In this paper, we propose a new approach in order to make easier the navigation process by performing an assistive visual framing. This approach exploits a new visual feature: the image saliency-based Gaussian mixture. We applied our method on many different environments and we present the example of the Saint S´ebastien chapel of the cathedral Notre Dame of Amiens. In order to evaluate our method, we present user evaluation and comparison between manual, assistive and automatic framing.

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