| 09:00-10:30 |
2D and 3D Data Capture Methodologies and Data Processing in Cultural Heritage |
DEMETRA Room |
| 32 |
Automated Generation of an Historic 4D City Model of Hamburg and its Visualisation with the GE Engine |
Thomas P. Kersten1, Friedrich Keller2, Jerome Saenger4 and Jochen Schiewe3 |
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| 1Hafen City University Hamburg, Photogrammetry & Laser Scanning Lab,2HafenCity University Hamburg, Geodetic Lab,3Hafen City University Hamburg, Lab for Geoinformatics and Geovisualization,Hebebrandstr. 1, 22297 Hamburg, Germany4Hospitalstraße 8, 06536 Bennungen, Germany{Thomas.Kersten, Friedrich.Keller, Jochen.Schiewe}@hcu-hamburg.deJerome.Saenger@t-online.de
Current 3D city models are already available for many cities world-wide. However, the production of historical city models is still in its infancy. In this paper a procedure is presented that combines different data sources in order to derive individual 3D city models of different time periods using the example of the Free and Hanseatic City of Hamburg. A wooden model of the city from the year 1644 and an official map from 1859 have been used as a basis for the generation of the 4D city model. The physical model (~1:1000) was scanned by a fringe projection system for 3D modelling, while the digitized data from the map were combined with height information from different data sources. These two geo-referenced 3D city models were used to derive further epochs (1200, 1400, 1589 and 1700) using different historical bird's-eye views (isometric views) of the city. For interactive navigation and visualization of the 4D city model a program was developed using the Google Earth Application Programming Interface. |
| 41 |
ALBERTI’S BOX. THE ARCHITECTURES OF LEON BATTISTA ALBERTI IN A CULTURAL AND MULTI-MEDIA PROJECT |
Marcello Balzani1, Carlo Bughi2, Federico Ferrari3,Luca Rossato2 and Alessandra Tursi2 |
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| 1TekneHub and Department of Architecture, University of Ferrara, Ferrara, Italymarcello.balzani@unife.it2Department of Architecture, University of Ferrara, Ferrara, Italy{carlo.bughi, luca.rossato, alessandra.tursi}@unife.it3Tekne Hub, University of Ferrara, Ferrara, Italyfederico.ferrari@unife.it
Far from their physical locations, buildings can be visualized, perceived and understood only thanks to a digital action of dematerialization and re-materialization., The Alberti’s Box was developed starting from this awareness. The intense collaboration between the DIAPReM Centre (Development of Integrated Automatic Procedures for Restoration of Monuments) of the Ferrara University, the Consorzio Ferrara Ricerche and the Leon Battista Alberti Study Centre Foundation of Mantua realized a cultural project allowing everyone the gathering of all the data and documentation related to the Alberti’s architecture: the flow of multimedia suggestions and digital reconstruction tries to describe the dynamics of his thought and tries also to explain which are the design, the technology and the interpretation queries the Alberti’s architecture still place. Alberti’s Box is an ideal magical box containing the philosophy of a humanist who has generated both architectural forms as well as thoughts.The idea is very simple: the aim is to stimulate the direct vision of the building, not its replacement. The digital interpretation of the buildings inside the Alberti’s Box has an analytical, documentary and explanatory function and the integration of various languages is the key to understand the architectures of Leon Battista Alberti, even if absent. |
| 75 |
Automatic Fusion of Digital Images and Laser Scanner Data for Heritage Preservation |
Wassim Moussa, Mohammed Abdel-Wahab, Dieter Fritsch |
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| Institute for Photogrammetry (ifp), University of Stuttgart,Geschwister-Scholl-Str. 24D 70174 Stuttgart, Germany{wassim.moussa, mohammed.othman, dieter.fritsch}@ifp.uni-stuttgart.de
This paper presents an automatic procedure for combining digital images and laser scanner data in order to have a full representation of a scene. In particular, this procedure will serve photogrammetric close range applications such as 3D digital preservation and documentation of cultural heritages by generating comprehensive virtual reality models. Our method is based on a bundle block adjustment for the orientation estimation of generated images from laser data and camera images by means of an optimized Structure from Motion reconstruction method. This results in having target-free registration of multiple laser scans and absolute image orientations. The proposed pipeline was tested on a real case study and experimental results are shown to demonstrate the effectiveness of the presented approach. |
| 66 |
Mapping of defect structural micro-morphology in the documentation of conservation approaches |
Eirini Bernikola1, Elsa Tsiranidou1, Vivi Tornari1, Vincent Detalle2, Jean Luc Bodnar3 |
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| 1Foundation for Reseearch and Technology HellasVassilika Vouton, Heraklion, Greece, 711102Laboratoire de Recherche des Monuments Historiques29, rue de Paris 77420 Champs-sur-Marne, France3Laboratoire d’ Energétique et d’ Optique, UFR Sciences Exactes et NaturellesBP 1039, 51687 Reims cedex 02
In this paper a study of fresco wall paintings with the use of Digital Holographic Speckle Pattern Interferometry and Infrared Thermography is being presented. Fresco technical samples as well as mural paintings in the Abbey of St. Savin have beeing examined. The information provided by both techniques leads to valuable results concerning the state of the mural paintings and provides information for their restoration and further conservation. |
| 69 |
EXPLOITATION OF THERMAL IMAGERY IN THE DETECTION OF PATHOLOGIES IN MONUMENTS |
Dafni Sidiropoulou-Velidou1, Andreas Georgopoulos1, José Luis Lerma2 |
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| 1Laboratory of Photogrammetry, National Technical University of Athens, Greece{rs06002, drag}@central.ntua.gr2Department of Cartographic Engineering, Geodesy and Photogrammetry,Universitat Politècnica de València46022 Valencia, Spainjllerma@cgf.upv.es
Documentation of monuments includes not only geometric analysis but also the detection of alterations and pathologies to define proper actions for protection and preservation. Several pathologies can be found on façades such as moisture, detachments, leaks and replacements. Multispectral techniques can help users to detect and determine these phenomena. Thermography is a non-intrusive imaging technique that allows the inspection of different materials and related issues based on their temperature. It has the advantage of reaching unapproachable areas onto and below the surface. However, there are still many issues in thermography when applied to cultural heritage surveys. Depending on the application, multitemporal images can be captured and combined with conventional images to analyze its state of conservation. This paper presents an approach based on multitemporal thermal imagery to detect alterations on building façades. Methods and tools of multispectral analysis targeting the detection of alterations and pathologies are presented and evaluated. |
| 17:45-19:30 |
Data Management, Archiving and Presentation of Cultural Heritage content |
DEMETRA Room |
| 49 |
An expert system for quality assurance of document image collections |
Roman Graf1, Reinhold Huber-Mörk2, Alexander Schindler2,3, and Sven Schlarb4,1 |
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| 1Research Area Future Networks and ServicesDepartment Safety & Security, Austrian Institute of Technologyroman.graf@ait.ac.at22Research Area Intelligent Vision SystemsDepartment Safety & Security, Austrian Institute of Technologyreinhold.huber-moerk@ait.ac.at33Department of Software Technology and Interactive SystemsVienna University of Technologyschindler@ifs.tuwien.ac.at44Austrian National Librarysven.schlarb@onb.ac.at
Digital preservation workflows for automatic acquisition of image collections are susceptible to errors and require quality assurance. This paper presents an expert system that supports decision making for page duplicate detectionin document image collections. Our goal is to create a reliable inference engine and a solid knowledge base from the output of an image processing tool that detects duplicates based on methods of computer vision. We employ artificial intelligence technologies (i.e. knowledge base, expert rules) to emulate reasoning about the knowledge base similar to a human expert. A statistical analysis of the automatically extracted information from the image comparison tool and the qualitative analysis of aggregated knowledge are presented. |
| 15 |
Tactile Representation of Paintings: an Early Assessment of Possible Computer Based Strategies |
Monica Carfagni1, Rocco Furferi1, Lapo Governi1, Yary Volpe1, Giovanna Tennirelli2 |
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| 1Dipartimento di Meccanica e Tecnologie Industriali, Università degli Studi di Firenze,Via S. Marta, 3 50141, Firenze, Italy{monica.carfagni, rocco.furferi, lapo.governi, yary.volpe}@unifi.it2Facoltà di Lettere e Filosofia, Università degli Studi di Firenze,Piazza Brunelleschi, 3-4 50121, Firenze, Italygiovanna.tennirelli@unifi.it
In recent years, a number of works meant to define the criteria for translating two-dimensional art into tactile representation, to be benefit of blind and visually impaired people. Due to technology-related limitations, however, these studies mainly investigated only some kinds of possible representations (e.g. tactile diagrams). This work deals with the analysis of 4 alternative translation strategies, implemented using computer-based tools, to determine the most effective one in delivering blind people a correct perception of pictorial artworks. The outcomes of the study contribute new information to the field of tactile paintings for blind and visually impaired individuals by testing the response of a panel of potential users. |
| 56 |
Model-based User Interface Design for The Encyclopedia of Islamic Architecture |
Osama Mohammad Alrawi |
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| Associate Professor of Architecture, Department of Architectural Engineering, Faculty of Engineering and Technology,Future University, Cairo EgyptPLEXIMOTIF@yahoo.com
The Encyclopedia of Islamic Architecture (EIA) provides the architectural design information that is empirically believed to best represent the content of this kind of architecture, besides being a platform for achieving all accumulated information elements. It is also containing a design information framework to operate as a mechanism for representation of design knowledge through an integrated software/hardware solution. The electronic Encyclopedia of Islamic Architecture is designed to meet the unique needs of specific professions working in true collaborative research operations across the multi-disciplinary extended enterprise including style and form design, historical background and the definition of detailed characteristics of Islamic Architecture. It is a useful research, prototyping and information seeking tool which comprise a number of activities from topic formulation to database search and browsing through accessed document providing a mechanism for user’s information need that is useful in every phases of the information seeking process. |
| 46 |
Mobile devices for the visit of “Anfiteatro Campano” in Santa Maria Capua Vetere |
Giuseppina Renda1, Stefania Gigli1, Alba Amato2,Salvatore Venticinque2, Beniamino Di Martino2, Francesca Romana Cappa1 |
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| 1Dipartimento di studio delle componenti culturali del territorioSecond University of NaplesSanta Maria Capua Vetere (Caserta), Italy2Department of Information EngineeringSecond University of NaplesAversa (Caserta), Italy{giuseppina.renda, stefania.gigli, alba.amato, salvatore.venticinque}@unina2.it,beniamino.dimartino@unina.it, francesca.cappa@gmail.com
Archaeological sites become pervasive environments because of personal devices like tablets and smart-phones, which are able to detect and explain ruins, artifact and points of cultural interest by their on-board peripherals. In this context pervasiveness offers to software applications the possibility to interact with the reality by the device, in order to perceive the information surrounding the users, and to adapt their own behavior and the environment itself. By modeling an archaeological site as a pervasive environment we are able to improve its exploitation by the visitors. Here we present, by a relevant case study, a framework that supports experts in the domain of the Cultural Heritage to augment the archaeological site with a set of multimedia contents, which are delivered by innovative services to the visitors in order to guide their tour and to enhance their perception of the reality. |
| 74 |
Evolution of the e-Museum Concept through Exploitation of Cryptographic Algorithms |
George S. Athanasiou1, Harris E. Michail2, Andreas Gregoriades3 and Marinos Ioannides2 |
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| 1Electrical and Computer Engineering Dept., University of Patras, 26500 Patras, Greece2Electrical Engineering and Information Technology Dept., Cyprus University of Technology, 3036 Lemesos, Cyprus3Computer Science and Engineering Dept., European University of Cyprus, Nicosia, Cyprus gathanas@ece.upatras.gr, {harris.michail, marinos.ioannides}@cut.ac.cy, A.gregoriades@euc.ac.cy
Nowadays more and more modern museums have digitized their collections and created e-museums. In this paper, a novel framework for enhancing the concept of e-Museum is proposed. The framework is based on cryptographic algorithms, specifically hash functions and block ciphers. The first are used for continuous hashing and digest matching of the database’s contents for quality assurance. The block ciphers are used so as to enable on-line selling, through encryption of the digital object and offering the resulted cipher text. The system’s infrastructure that implements the above framework is also described. It has to be stressed that it is the first time that cryptographic principles are exploited this way in the Cultural Heritage domain. |
