3D Virtual reconstruction of an urban historical space: A consideration on the method

Galizia, Mariateresa and Santagati, Cettina (2011) 3D Virtual reconstruction of an urban historical space: A consideration on the method. ISPRS International Archives of Photogrammetry, Remote Sensing and Spatial and Information Sciences, 38 (5/w16). pp. 1-8. ISSN 1682-1777 [Article]

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Abstract (in English)

Urban historical spaces are often characterized by a variety of shapes, geometries, volumes, materials. Their virtual reconstruction requires a critical approach in terms of acquired data�s density, timing optimization, final product�s quality and slimness. The research team has focused its attention on the study on Francesco Neglia square (previously named Saint Thomas square) in Enna. This square is an urban space fronted by architectures which present historical and stylistic differences. For example you can find the Saint Thomas� church belfry (in aragounese-catalan stile dated XIV century) and the porch, the Anime Sante baroque�s church (XVII century), Saint Mary of the Grace�s nunnery (XVIII century) and as well as some civil buildings of minor importance built in the mid twentieth century. The research has compared two different modeling tools approaches: the first one is based on the construction of triangulated surfaces which are segmented and simplified; the second one is based on the detection of surfaces geometrical features, the extraction of the more significant profiles by using a software dedicated to the elaboration of cloud points and the subsequent mathematical reconstruction by using a 3d modelling software. The following step was aimed to process the virtual reconstruction of urban scene by assembling the single optimized models. This work highlighted the importance of the image of the operator and of its cultural contribution, essential to recognize geometries which generates surfaces in order to create high quality semantic models.

Item Type:	Article
Authors:	Authors Email Galizia, Mariateresa mgalizia@dau.unict.it Santagati, Cettina cettina.santagati@dau.unict.it
Languages:	English
Keywords:	laser scanning; 3d modeling; urban space
Subjects:	C. ARCHITECTURE > 03. Styles of architecture F. SCIENTIFIC TECHNIQUES AND METHODOLOGIES OF CONSERVATION > 10. Architectural surveys F. SCIENTIFIC TECHNIQUES AND METHODOLOGIES OF CONSERVATION > 44. Recording techniques
Name of monument, town, site, museum:	Torre di San Tommaso, Enna, Italy; Chiesa delle Anime Sante, Enna, Italy
Volume:	38
Number:	5/w16
ISSN:	1682-1777
Depositing User:	Eng Cettina Santagati
Date Deposited:	05 Apr 2012 19:37
Last Modified:	05 Apr 2012 19:37
References:	Apollonio F.I., Gaiani M., Corsi C., 2010. A semantic and parametric method for 3D models used in 3D cognitive information system. In: Future cities. 28th eCAADe 2010 Conference, ZURICH, ECAADE ETH Zurich, pp. 863 - 872. Bianchini C., 2009. Towards a systematic theoretical approach for archeology survey and modelling. In: Proceedings of CAA 2009 Conference, Making History Interactive, Williamsburg. Blaise J.-Y., Dudek I., De Luca L., 2009. Handling mouldings in historic architecture: a matter of geometry, a matter of knowledge? In: Proceedings of CIE39, International conférence on Computers and Industrial Enginnering, Troyes. Galizia M., Andreozzi L., 2005. The survey of decorative elements with laser scanner. In: CIPA 2005 XX International Symposium International cooperation to save the world's cultural heritage, pp. 289-294, Torino. Guerra F., Balletti C., Vernier P., 2008. La memoria digitale della forma geometrica: scanner 3d e fotogrammetria digitale per la realizzazione di modelli virtuali, per la riproduzione, per la conservazione e per la riattualizzazione di oggetti. In: Atti della 12^ conferenza nazionale ASITA, L’Aquila. Guerra F., Adami A., Vernier P., Tsiukas V., 2008. Il laser scanner per la verifica di ipotesi geometriche: applicazione ad un monastero musulmano a Xanthi. In: Atti della 12^ conferenza nazionale ASITA, L'Aquila. Remondino, F., Girardi, S., Gonzo, L., Rizzi, A., 2008. Multiresolution modeling of complex and detailed Cultural Heritage. In: Proceedings of 9th Int. Symposium on Virtual Reality, Archaeology and Cultural Heritage (VAST 2008), pp. 1-8, Braga, Portugal. Santagati C., 2005. 3D Laser Scanner aimed to architectural heritage survey: from the point's cloud to the geometrical genesis determination. In: ISPRS International Archives of Photogrammetry, Remote Sensing and Spatial and Information Sciences, VOLUME XXXVI, PART 5/W17. Santagati, C., 2007. Il reale e la sua rappresentazione attraverso l’informatica, Il Lunario, Enna.
URI:	https://openarchive.icomos.org/id/eprint/1065

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