3d Modeling

3D virtual reconstruction of an urban historical space: a consideration on the method (2011)

by Cettina Santagati

Galizia M., Santagati C., 3D virtual reconstruction of an urban historical space: a consideration on the method In International Archives of Photogrammetry, Remote Sensing and Spatial and Information Sciences, VOLUME 38 (5). ISSN 1682-1777. (CD-ROM)

Proceedings of ISPRS Working Group V/4 Workshop 3D-ARCH 2011: "Virtual Reconstruction and Visualization of Complex Architectures" 2-5 March 2011, Trento, Italy.

Computer vision techniques: towards automated orthophoto production

by Geert Verhoeven

Verhoeven, G., Doneus, M., Briese, C., 2012. Computer vision techniques: towards automated orthophoto production. AARGnews 44, 8–11.

Getting computer vision airborne - using Structure from Motion for accurate orthophoto production

by Geert Verhoeven

Verhoeven, G., 2012. Getting computer vision airborne – using Structure from Motion for accurate orthophoto production. RSPSoc Archaeology Special Interest Group Newsletter Spring 2012, 4-6.

Il rilievo 3D della fontana di Sala Grande

by Filippo Fantini

published in the catalogue: Paolozzi Strozzi B.; Zikos D. (editors),  L' acqua, la pietra, il fuoco. Bartolomeo Ammannati scultore. Giunti editore 2010.

linsk:

http://www.ibs.it/code/9788809766754/acqua-pietra-fuoco.html


http://www.youtube.com/watch?v=L_iYCB8sXIU

http://cultura.notizie.it/l%E2%80%99acqua-la-pietra-il-fuoco-bartolomeo-ammannati-scultore-fino-al-18-settembre-al-bargello-di-firenze/

paper about the reconstruction of the Ammannati Fountain held at the Bargello Museum in Floresnce. All the statues... more paper about the reconstruction of the Ammannati Fountain held at the Bargello Museum in Floresnce. All the statues were surveyed by laser scanner and reassembled by meanso f reverse modeling programs.

Tools for archiving and managing cultural heritage. The finds from Hadrian’s Villa in the territory of Tivoli: The case study of the friezes from the Teatro Marittimo

by Filippo Fantini

Paper published at the: 14th International Congress „Cultural Heritage and New Technologies“ Vienna, 2009

All those who study Hadrian’s Villa know that most of the sculptures, mosaics, architectural
elements and other... more All those who study Hadrian’s Villa know that most of the sculptures, mosaics, architectural
elements and other pieces which decorated this extraordinary villa are currently preserved in many public
and private collections in Italy and elsewhere (in Europe). Although many well-known statues can be found in
the principal Roman museums, at the Villa there is still a large number of fragments of statues, architectural
elements and so on. After long and painstaking work, most of the materials have been reorganized in the socalled
Cento Camerelle complex. Among the materials stored are some figured friezes, referring to
architectural decoration, with a characteristic curved shape: the only buildings at the Villa with figured and
curved friezes are the Teatro Marittimo and Piazza d’Oro, where we can see the remains of curved masonry
and porticos. Our aim is to illustrate the first results obtained from the integrated data treatment processing of
laser scanner surveys called IBDP (image-based data processing). This has facilitated versatile data storage
and cataloging, as also the development of specific studies on the former shape of ancient buildings (virtual
anastylosis), based on scientific criteria and not just for dissemination.

VIRTUAL RECONSTRUCTION OF ANCIENT ARCHITECTURE AND LANDSCAPES OF SRI LANKA

by D.A.M.S. Silva

International Buddhist Conference 2012 Buddashravaka Bhiksu University Anuradhapura Sri Lanka. 17, 18 and 19 February, 2012.

VIRTUAL RECONSTRUCTION OF ANCIENT ARCHITECTURE AND LANDSCAPES OF SRI LANKA

Silva, D.A.M.S.* and... more VIRTUAL RECONSTRUCTION OF ANCIENT ARCHITECTURE AND LANDSCAPES OF SRI LANKA

Silva, D.A.M.S.* and Yakandawala, K.**

Department of Horticulture and Landscape Gardening, Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, Gonawila (NWP), Sri Lanka
*me@sandaru1.me, **kapilay@yahoo.ca

ABSTRACT
The history of architecture in Sri Lanka spans to the prehistoric era. However, well developed architectural and landscaping knowledge was transmitted from Indo-Aryan settlers, after Buddhism was introduced in 3rd century BC.
Ancient Sri Lankan architecture primarily developed around religion. Sustainability and natural balance were key philosophies of this. All these monuments and landscapes have a remarkable calming effect on visitors. Remains of Buddhist and Hindu shrines, literature, maps and silpa texts are the main sources of evidence for studying ancient architecture and landscape gardening in Sri Lanka. Historic books like Mahawansa gives a detailed explanation of construction efforts led by each king during their ruling dynasties. Sinhala and Pali books written by great scholar monks, specially the Sandesha kavyas provide descriptive information on ancient buildings and gardens as well the biodiversity of surrounding landscapes.
Stupas, the world's universal Buddhist architectural monuments, were built to preserve holy artifacts of the Lord Buddha. Ancient Stupas emphasize architectural and engineering capabilities of the ancestors of the island, and Stupas are considered the largest brick monuments of the pre-modern world.
Sri Lankan Buddhist architecture was under threat ever since it was introduced, first by the South Indian invasion, then by Europeans, and recently by civil war, when many architectural monuments as well as architectural documents were destroyed. In spite of the brave effort by the Sri Lankan people, Buddhist monks, and leaders who tried to protect ancient Buddhist monuments, many of them have rapidly decayed and have been destroyed in the past.
The protection and restoration of ancient architecture, its theories and techniques has become a challenge to the present generation. Focus should not be limited to protecting, maintaining and restoring ancient heritage but also on the need to reuse these principles in modern architecture and landscaping, mainly because of its sustainability and ecological balance.
Developing 3D models of ancient monuments using computer software is very useful for in-depth studies and reconstruction efforts. However, designing 3D models using traditional geometrical designing software such as AutoCAD, Maya, 3D’s max are sophisticated and time consuming. Google SketchUp was recently introduced as a free and open source 3D modeling system, which is user-friendly and easy to learn. Now many engineers, architects, researchers and students are using Google SketchUp together with Google Earth in engineering, geography and archeology projects as a rapid designing tool.

KEYWORDS: Buddhist Architecture, Computer Aided Designing, Archeology, 3D modeling

The laser scanner for archeological survey: “le terme dell’Indirizzo” in Catania

by Cettina Santagati

Giuffrida A.,Liuzzo M., Santagati C., Andreozzi L., The laser scanner for archeological survey: “le terme dell’Indirizzo” in Catania, In International Archives of Photogrammetry, Remote Sensing and Spatial and Information Sciences, Volume 36 (5) ISSN 1682 – 1750. pag 316 - 321.

Proceedings of XX Cipa International Symposium “International cooperation to save the world’s cultural heritage”. Turin 26 september – 2 october 2005.

Data Miming: Inferring Spatial Object Descriptions from Human Gesture

by Christian Holz

Holz, C. and Wilson, A.D. 2011. Data Miming: Inferring Spatial Object Descriptions from Human Gesture. In Proceedings of CHI '11, 811–820.

presentation: http://www.christianholz.net/2011-chi11-holz-data_miming-presentation.pdf
more information: http://www.christianholz.net/data_miming.html

Speakers often use hand gestures when talking about or describing physical objects. Such gesture is particularly... more Speakers often use hand gestures when talking about or describing physical objects. Such gesture is particularly useful when the speaker is conveying distinctions of shape that are difficult to describe verbally. We present data miming—an approach to making sense of gestures as they are used to describe concrete physical objects. We first observe participants as they use gestures to describe real-world objects to another person. From these observations, we derive the data miming approach, which is based on a voxel representation of the space traced by the speaker’s hands over the duration of the gesture. In a final proof-of-concept study, we demonstrate a prototype implementation of matching the input voxel representation to select among a database of known physical objects.

Conoscenza è creatività (2010)

by Cettina Santagati

Restuccia F., Galizia M., Santagati C., Conoscenza è creatività, in C. Gambardella, “Le Vie dei Mercanti. Rappresentare la conoscenza”. Collana Fabbrica della Conoscenza numero 8. La scuola di Pitagora. Napoli, 2010. ISBN 978-88-6542-014-0. pp 813-824

Il contributo di Cettina Santagati è individuabile al paragrafo: , Un laboratorio di progettazione architettonica... more Il contributo di Cettina Santagati è individuabile al paragrafo: , Un laboratorio di progettazione architettonica creativa a Enna

Cultural Heritage Preservation: 3D Modeling of Traditional Malay House using Hidden Surface Removal Approach

by Nazrita Ibrahim

Published in the Proceeding of International Conference on Software Engineering and Computer Systems 2009 (ICSECS09), October 19 – 21, 2009, Kuantan, Pahang. ISBN: 967-5080-75-3

Structured modelling for aesthetic design'

by Laura Papaleo

In Proceedings of the International Conference on Computer Graphics, pp.267-274, 2000 - with C. Catalano, M. Meirana

Nowadays, it is very common that the same company produces the mechanical and electrical parts of a product also for... more Nowadays, it is very common that the same company produces the mechanical and electrical parts of a product also for competitor trademarks. The differences in products are mainly given by shape details and then the choice of the customer results strongly affected by aesthetic aspects (color, shape, and so on). These ones are not so conditioned by technology as in the past because of the availability of new materials and tools, able to render very complex shapes and to provide a greater freedom to the stylist creativity. In this paper, the introduction and the study of high-level modeling entities is attained. From the one hand, these elements would improve the CAS design, bringing the computer way of operating nearer to the stylist way of thinking. The analysis focalizes on possible shape modification techniques, which take into account the emotional impact. From the other hand, the adoption of the feature-based concept is introduced for allowing the reuse of already existing models for obtaining new, but aesthetically similar, products.

A complete system for on-line 3D modelling from acoustic images

by Laura Papaleo

in Sig. Proc.: Image Comm. 20(9-10): 832-852 (2005)
with U.Castellani, A.Fusiello, V.Murino, E.Puppo, M.Pittore

This paper presents a system for the three-dimensional (3D) reconstruction of an underwater environment on the basis... more This paper presents a system for the three-dimensional (3D) reconstruction of an underwater environment on the basis of multiple range views from an acoustical camera. The challenge is to provide the reconstruction on-line, as the range views are obtained from the sensor. The final target of the work is to improve the understanding of a human operator driving an underwater Remotely Operated Vehicle. The acoustic camera provides a sequence of 3D images in real time. Data must be registered and fused to generate a unique 3D mosaic in the form of a triangle mesh, which is rendered through a graphical interface. Available technologies for registration and meshing have been modified and extended to match time constraints. Some experiments on real data are reported.

Online Data Fusion for building 3D models from acoustical range images

by Laura Papaleo

This Technical Report presents a Data Analysis approach which on the fly, starting from multiple acoustic/optical... more This Technical Report presents a Data Analysis approach which on the fly, starting from multiple acoustic/optical range images, elaborates the acquired unknown object by mosaicing multiple single frame meshes. In the context of the European ARROV project, we developed a 3D reconstruction pipeline, which provides a 3D model of an underwater scene from a sequence of range data captured by an acoustic camera mounted on board a Remotely Operated Vehicle (ROV). Our approach works on line by building the 3D model while the range images arrive from ROV. The method combines the range images in a sequence by minimizing the workload of the rendering system.

Surface reconstruction: online mosaicing and modeling with uncertainty

by Laura Papaleo

Semantic-Based Segmentation and Annotation of 3D Models

by Laura Papaleo

In Proceedings of the International Conference on Image Analysis and Processing (ICIAP), Springer-Verlag, Berlin, Heidelberg, pp.103-112, 2009
with L. De Floriani

3D objects have become widely available and used in different application domains. Thus, it is becoming fundamental to... more 3D objects have become widely available and used in different application domains. Thus, it is becoming fundamental to use, integrate and develop techniques for extracting and maintaining their embedded knowledge. These techniques should be encapsulated in portable and intelligent systems able to semantically annotate the 3D object models in order to improve their usability and indexing, especially in innovative web cooperative environments. Lately, we are moving in this direction, with the definition and development of data structures, methods and interfaces for structuring and semantically annotating 3D complex models (and scenes) - even changing in time - according to ontology-driven metadata and following ontology-driven processes. Here, we concentrate on the tools for segmenting manifold 3D models and on the underline structural representation that we build and manipulate. We also describe the first prototype of an annotation tool which allows a hierarchical semantic-driven tagging of the segmented model and provides an interface from which the user can inspect and browse the entire segmentation graph.

Developing a Web 3.0 E-learning Portal with X3D Technologies

by Laura Papaleo

In Eurographics Italian Chapter Conference 2010, Genova, Italy, 2010. pages 129-134, Eurographics, 2010

The paper describes our experience in the development of the DIEL learning management system, and especially its 3D... more The paper describes our experience in the development of the DIEL learning management system, and especially its 3D interface, which has been developed using X3D. DIEL allows to structure learning activities along a virtual learning path, composed by a set of virtual rooms. Each room can be represented as a 2D or 3D virtual environment. A first implementation of DIEL’s 3D interface had been developed using Flash, recently such an interface was refactored using the new and innovative technologies X3D and X3DOM, with a substantial increase in terms of virtual environment personalization and in the possibility of supporting new features in the future.

Integrating a Web3D interface into an e-learning platform

by Laura Papaleo

F.Di Cerbo, G. Dodero, L. Papaleo. In Proceedings International Conference on Web 3D Technology (Web3D '10). ACM, New York, NY, USA, 83-92. 2010

In the paper, we present an application of Web3D technologies, X3D with X3DOM and HTML5, to enhance our e-learning... more In the paper, we present an application of Web3D technologies, X3D with X3DOM and HTML5, to enhance our e-learning platform DIEL. DIEL exploits the social translucence concept in order to create a virtual and dynamic learning space where avatars of community members can interact while implementing any social constructivist learning paradigm. While supporting collaborative learning communities, the addition of high-performance 3D graphics into a DIEL web page, without requiring any plug-in at client side, allows a complete and meaningful interaction with the e-learning services, that benefits the users' experience in the exploitation of proximity relationships with respect to other users and resources.

3D Modeling of Large and Complex Site Using Multi-Sensor Integration and Multi-Resolution Data

by Gabriele Guidi

High-Accuracy 3-D Modeling of Cultural Heritage: The Digitizing of Donatello's" Maddalena"

by Gabriele Guidi