DH2015 - Track 1

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https://diglib.eg.org/handle/10.2312/14458

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The Virtual Reconstruction of the Minaret of Mansourah Mosque (Algeria)
(IEEE, 2015) Morena, Sara; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
This contribution synthetically addresses some of the photogrammetric solutions available today in the field of architectural-archaeological survey and the related applications outcome, evaluated during both the acquisition phase of metric data than in those of effective yield of refunds infographics. Therefore, we have focused on the virtual reconstruction of one of the most emblematic and symbolic building of the Algerian culture, the mosque of Mansourah, returning the minaret as it appeared before its partial collapse, namely correspondent in geometry, textures and colours. The work is part of a larger research project to promote knowledge and dissemination of Algeria cultural heritage, with 'original' approach about the validation of an integrated methodology. In particular, the analysis has led to the application of the theory of errors on the survey of the elevations obtained by the two different methods of photogrammetric survey, multi-image and stereoscopic. The documented example shows how it is possible to achieve reliable reconstructions of each structure, although presently destroyed, bringing to light traces of a story now lost.
Fusion of 3D Data from Different Image-based and Range-based Sources for Efficient Heritage Recording
(IEEE, 2015) Muñumer, Estibaliz; Lerma, José Luis; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
The rapid proliferation of three-dimensional (3D) data acquisition techniques based either on image-based approaches or on range-based approaches is changing the way cultural heritage is recorded. Independently of the technique selected, low-cost structure-from-motion (SfM) photogrammetric computer vision, stereo-plotting, surveying either with measuring tape, total station or global navigation satellite system (GNSS), up to laser scanning/LiDAR/RADAR, among others, there is a need to fuse efficiently different datasets. This research aims to test the fusion performance of the new 3DVEM - Register GEO software for the recording of a complex sculpture. The fusion of data will consider several point clouds acquired with a terrestrial laser scanner and one high-resolution point cloud generated with SfM software. The registration process is performed to merge all the data in a final homogeneous framework (reference system). The results obtained will be used to create a high-resolution 3D model of the sculpture from the consolidated data.
Virtual 3D Reconstruction of Plans-Reliefs from Historical Document Analysis for Valorisation Applications
(IEEE, 2015) Halin, Gilles; Chevrier, Christine; Jacquot, Kevin; Humbert, Pascal; Bouheni, Senda Ben; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
The French collection of Plans-Reliefs, scale models of fortified towns, constitutes an awesome architectural heritage. Facing this patrimonial richness, many cities, represented on these plans-reliefs, would like to expose, develop and exploit this historical heritage. However, the fragility, the dimension of the supports and the exposure conditions makes this acquisition difficult. Thus, the creation and the exploitation of a virtual model constitute an interesting alternative. This paper presents a method exploiting historical documentary for the 3D semantic modelling and the valorisation of the virtual Plan-Relief of Verdun. The original Plan-Relief is currently enclosed in containers in Paris.
Digitizing the Culture of Beijing - An Introduction of the Memories of Beijing Project
(IEEE, 2015) Liang, Jihong; Ma, Linqing; Wu, Yunpeng; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
The Memories of Beijing project is an effort that aims at identification, representing, and disseminating the rich culture of Beijing, the capital city of China, via the employment of digital technologies. This proposal introduces the project's work up to date.
Geometry to Web - Jaen's Cathedral
(IEEE, 2015) Tirado, Gregorio Soria; Alvarado, Lidia Ortega; Higaruela, Francisco R. Feito; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
In this paper we describe the methodology carried out in the Cathedral of Jaén (Spain) during the scanning, processing of the resulting point clouds and the post-processing into a three-dimensional model. The virtual cathedral is placed in a web-site using WebGL in order to be visited and admired in detail.
The Venice ''Archivio di Stato'' - Innovating Digitization with X-Ray Tomography
(IEEE, 2015) Albertin, Fauzia; Peccenini, Eva; Hwu, Yeukuang; Lee, Tsung-Tse; Ong, Edwin B. L.; Je, Jung Ho; Kaplan, Frédéric; Margaritondo, Giorgio; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
We present x-ray imaging results for diverse ironbased- ink antique writings - single-page manuscripts, stacks and scrolls - from the 16th century on. The objective is to elaborate new digitization techniques by x-ray tomography for the ''Venice Time Machine'' (VTM) project in collaboration with the ''Archivio di Stato''. The technique can potentially read unopened - perhaps unopenable - documents and speed up the entire digitization process of large collections. The technique is feasible thanks to the highly absorbing chemical elements in ancient European ink recipes. The corresponding x-ray contrast allows character reading with reasonably short exposure times. The impact is quite relevant: the potential feasibility of ''softer'' and faster digitization of huge collections like the Archivio di Stato - 80 km of documents spanning 10 centuries.
Minor Harbours of the East Coast of Ireland
(IEEE, 2015) Shotton, Elizabeth; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
Considerable progress in the engineering of maritime structures occurred between the 18th and 20th centuries in Ireland. While major harbours have been well documented, there remain considerable structures that due to their small size have been overlooked. These minor harbours represent a considerable source of information, many having originated through local efforts only to be later modified through government works in the 19th and 20th centuries. The danger posed to these structures from deterioration and rising sea levels is increasing and it is imperative to create accurate records for the appropriate management and conservation of these structures. An initial pilot study of Coliemore Harbour [1] was undertaken in 2014-15, which served to establish a provisional methodology for scanning procedures, using a Leica Geosystems LiDAR scanner, from which precise measurements and configurations of each structure can be catalogued and compared. The pilot study served to identify issues to be addressed to ensure the information captured is both complete and as widely transportable to alternative formats as possible for ease of access to a broader range of users.
Optimizing UAV Systems for Rapid Survey and Reconstruction of Large Scale Cultural Heritage Sites
(IEEE, 2015) Meyer, Dominique; Fraijo, Elioth; Lo, Eric Kwok Cheung; Rissolo, Dominique; Kuester, Falko; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
Recording geometrically and aesthetically accurate models of cultural heritage sites is important for both their conservation and understanding of historical importance. Rapid imaging systems are required to capture models efficiently so that large sites can be documented with sufficient resolution. Increasing availability of consumer-level drones has fostered digital data collection to replace traditional surveying methods. While such systems allow photogrammetric data to be gathered, they often prove inadequate for large scale rapid imaging. We propose an aerial system infrastructure based on: adapted aerial platforms; optimizations for flight path generation and UAV operations; high-bandwidth LTE transmission; methods of efficient point cloud generation, to rapidly document large scale heritage sites.
The Recording of Two Late Roman Towers, Archaeological Museum, Milan
(IEEE, 2015) Blockley, Paul; Morandi, Simona; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
This paper is an analysis of the recording, processing and presentation of the 3D data of two late Roman towers, through mast and zeppelin photography and image-based modelling software (IBM). Comparison is made to traditional and other digital recording methods.
Robust Segmentation of Historical Parchment XMT Images for Virtual Unrolling
(IEEE, 2015) Liu, Chang; Rosin, Paul; Lai, Yu-Kun; Hu, Weiduo; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
Historical parchment scrolls are fragile, and prone to damage from a variety of causes such as fire, water, and general mistreatment. Consequently many of these scrolls cannot be unrolled, so that their contents have remained hidden for centuries. To overcome these difficulties, we have developed a method of segmenting X-ray tomographic scans of parchment which enables a ''virtual unrolling'' of these documents. After an initial segmentation we link the broken layers of the parchment. Then, junction sections are extracted from the boundaries of the parchment. Subsequently, we find the fused regions which are formed by layers stuck together, and separate them into several layers by reconstructing the missing boundaries using parallel connecting curves. Experiments on the fifteenth century Bressingham scroll validate the effectiveness of our segmentation method.
The Virtual Recontruction of an Ancient Musical Instrument: The Aulos of Selinus
(IEEE, 2015) Bellia, Angela; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
In the summer of 2012, the IFA-NYU Selinunte Mission began to explore the interior of the cella of Temple R. This excavation showed that the Classical and Archaic layers had been sealed by a deep fill of the Hellenistic period and left untouched by earlier archaeological research at the site. Among the discoveries was a series of votive depositions against the walls, dating back to the sixth century BCE. One of the most striking finds among the votive depositions was the discovery of two parts of a bone aulos, which can be dated to 570 BCE. The virtual reconstruction of the aulos found in Temple R at Selinus aims to study the acoustic and morphological attributes of the ancient musical instrument, but also to increase and improve the scientific investigation by overcoming the limitations caused by the instrument's fragility. Digital technology allowed us to produce a 3D model of the aulos. This digital model has been translated into a three-dimensional artificial copy, using polymer as a material. Our goal is to reconstruct the aulos after analysing its organological characteristic and, if possible, discover its scale. We hope that this new study of the aulos will increase our knowledge of Ancient Greek music.
Reconstruction of the Woodblock Using Three-dimensional Scanning and Computer Numerical Control Machining
(IEEE, 2015) Hong, Joo-Pyo; Zhang, Zongming; Han, Jiho; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
Woodblocks that have been handed down for hundreds of years that have wear, deformation, and damage in their shape, are sometimes still used for printing. In this study, the original forms of such woodblocks were obtained through three-dimensional digital reconstruction with the appropriate mesh size of the width and the depth of the letters on it, and a replica was produced through computer numerical control machining. The averaged error of the scanned data is 0.0015mm, and that of the replica is 0.0263mm in the depth direction.
A Comparison of Digital Modelling Techniques Analyzing a Section of Qhapaq Ñan
(IEEE, 2015) Retamozo, Saúl; Zvietcovich, Fernando; Arce, Diego; Quintana, Matias; Angeles, Sergio; Castañeda, Benjamin; Aguilar, Rafael; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
Total Station has been one of the most common acquisition devices for achieving maps through topographic survey. Nowadays, Terrestrial Laser Scanner (TLS) and Photogrammetry are commonly used to generate accurate meshes. In addition, commercial products such as Kinect offer low cost technology to acquire point-cloud information. The present paper aims to measure the accuracy of these digital modelling techniques by employing elevation contour maps, surface deviations and distance measurements. For this purpose, a 450 m sector of the Qhapaq Nan located in Lima-Peru, was selected as a case of study. A camera-enabled drone was used for acquiring pictures to obtain a high-resolution photogrammetric Total Station has been one of the most common acquisition devices for achieving maps through topographic survey. Nowadays, Terrestrial Laser Scanner (TLS) and Photogrammetry are commonly used to generate accurate meshes. In addition, commercial products such as Kinect offer low cost technology to acquire point-cloud information. The present paper aims to measure the accuracy of these digital modelling techniques by employing elevation contour maps, surface deviations and distance measurements. For this purpose, a 450 m sector of the Qhapaq Nan located in Lima-Peru, was selected as a case of study. A camera-enabled drone was used for acquiring pictures to obtain a high-resolution photogrammetric model. Subsequently, a 3D survey of the monument was conducted with a time-of-flight laser scanner. Contour elevation lines where extracted from TLS, Photogrammetry and Total Station models at the same depths in order to determine the precision of photogrammetry and laser scanner reconstructions. In addition, geometrical comparisons were performed among the 3D models above mentioned and the Kinect sensor. The comparison showed that TLS is the most accurate tool for 3D reconstruction. However, Photogrammetry and Kinect provided errors of less than one centimeter in accuracy.
PATRINAT - The Drawings in Buffon's Histoire Naturelle, Towards a Digitized Heritage
(IEEE, 2015) Thierry, Laugee; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
The PATRINAT project mainly focuses on the cataloging, digitization and dissemination of the drawings and engravings composing the collection of drawings given by Buffon to the Bibliothèque nationale de France. Those drawings used for the Histoire naturelle have never been displayed because of the difficulty of letting them be accessible or manipulated. This is why a digitization work has to be carried out and how we envisage the preservation and display of these multidisciplinary items. To respect the multidisciplinarity of the objects, we're working with art historians and biologists to give the most scientific approach of those drawings.
Representation of the Santander Cathedral by Combination of Different Smart Techniques
(IEEE, 2015) Cosido, Óscar J.; Terán, Leticia; Campi, Massimiliano; Catuogno, Raffaele; Ruiz, Óscar; Sendino, Jesús M.; Sarabia, Pedro; Pereda, José; Iglesias, Andrés; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
Inside Santander city, we find two different historical parts, ''la Puebla vieja'', oldest part of the city, where the cathedral is located and ''la Puebla nueva''. A research team has been created with two purposes: study and make the architectural survey of historic building, through collaboration between the emerged company, 3D Intelligence, the Universidad de Cantabria, the Universit degli Studi di Napoli ''Federico II'' and the School - Workshop from the City Council of Santander, thus a number of projects for the digital documentation of the Santander City Heritage have been generated [1] as the beginning of the analysis and three-dimensional modeling of the historical evolution of the city. For which we used a new methodology for understanding the Historic Urban Landscape [2], trying to validate the novel concepts in the field of cultural heritage [3].
Crowd-sourcing the 3D Digital Reconstructions of Lost Cultural Heritage
(IEEE, 2015) Vincent, Matthew; Coughenour, Chance; Remondino, Fabio; Gutiérrez, Mariano Flores; Bendicho, Victor Manuel Lopez-Menchero; Fritsch, Dieter; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
Crowd-sourced photogrammetric reconstructions offer a unique opportunity for the digital visualisation of lost heritage. Project Mosul is a project that seeks to digitally reconstruct lost heritage, whether through war, conflict, natural disaster or other means, and preserve the memory of that heritage through digital preservation schemes. The project is not without its challenges, however. For example, geometric fidelity is impossible to determine, maintaining community interest, while returning some value to the research community. That being said, textured 3D models can still be a valuable source for visualization, memory and documentation.
Battery Aachen - Using Landscape Reconstruction for On-site Exploration of a World War One Military Unit
(IEEE, 2015) Nollet, Dries; Pletinckx, Daniel; Capurro, Carlotta; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
This short paper shows the work that has been done in collaboration between Visual Dimension bvba and the Raversyde Museum for the reconstruction of the military site of the Battery Aachen, giving some hints of the further development of the project.
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.
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.
A New Way to Enrich Museum Experience Through X-ray Tomography The Diagnostic Study of a Wax Anatomical Model of the 18th Century Made by Anna Morandi Manzolini
(IEEE, 2015) Peccenini, Eva; Bettuzzi, Matteo; Brancaccio, Rosa; Casali, Franco; Morigi, Maria Pia; Piro, Laura; Lanzarini, Viviana; Todero, Antonio; Leonardi, Luisa; Sequi, Elios; Gabriele Guidi and Roberto Scopigno and Fabio Remondino
The result of Computed Tomography (CT) investigation consists in a 3D volume of the object able to show its inner parts, revealing hidden structures and materials used in a completely non-invasive way. Its application, in Cultural Heritage field, is an important resource to enhance the knowledge of execution the construction technique and the state of conservation. This work was triggered by a need of diagnostic investigation before the restoration of anatomical wax model of the 18th century made by Anna Morandi Manzolini, kept at the Palazzo Poggi Museum in Bologna, but the peculiarity of the application and its results has yielded new purposes to the diagnostic investigation related to scientific communication and museum fruition. CT analysis was carried out using an experimental CT system specifically designed for the analysis of Cultural Heritage materials, developed by the X-ray imaging research group at the Physics and Astronomy Department of the University of Bologna. The results of the investigation were shown then at the Anatomical Wax Museum ''Luigi Cattaneo'' in Bologna, during the ''Festival of Medical Science. Long Life'', from 7 to 10 May 2015, through a 3D virtual projection.

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