id 
ecaade2007_131 
authors 
Sdegno, Alberto 
year 
2007 
title 
RQS  Reverse Quadratura for Surveying 
source 
Predicting the Future [25th eCAADe Conference Proceedings / ISBN 9780954118365] Frankfurt am Main (Germany) 2629 September 2007, pp. 615620 
summary 
This research is based on the development of a new method for surveying single and double curved surfaces using an application of an ancient perspective method for representing a picture on a complex surface. The procedure enables the user to have some detailed crosspoints of a grid in order to simplify the survey operation. Another phase of the work is to take some doublepictures of the element, according of the method I shall describe in the paper. The photographs of the single element, with the projection of the regular grid, can be processed with every ImageBased Modeling Software in order to obtain – with the usual calibration methods – the digital “mapped with reticulum” model of the curved surface we are analyzing. The final step enables the user to improve the quality of the textured model, switching from the gridtextured photographs to the simpletextured one. This research is part of a more general theoretical and experimental Academic research that has the aim of studying the ancient drawing methods of in order to find some analogies with the digital technology applied to the study of architectural buildings. 
keywords 
Geometric modeling, survey, imagebased modeling, image processing, quadraturism 
series 
eCAADe 
email 
sdegno@units.it; sdegno@units.it 
full text 
file.pdf (1,634,622 bytes) 
references 
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citation 
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Andrea Pozzo
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De Luca, L., Veron, P., Florenzano, M. (2006)
Reverse engineering of architectural buildings based on a hybrid modeling approach
, Computers & Graphics, 30(2), pp. 160176



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Modeling and Rendering Architecture from Photographs: A Hybrid Geometry and ImageBased Approach
, H. Rushmeier (ed), Proceedings of SIGGRAPH 96, Computer Graphics Proceedings, Annual Conference Series, Add



Debevec, P.E. (1996)
Modeling and Rendering Architecture from Photographs
, Ph.D. Thesis, University of California, Berkeley



Kemp, M. (1990)
The Science of Art. Optical themes in western art from Brunelleschi to Seurat
, Yale University Press, New Haven and London



Sdegno, A. (2005)
From Architectural Intent to Physical model. Representing The Chiostro della Carità by Andrea Palladio with new technologies
, B. Martens, A. Brown, (eds), Computer Aided Architectural Design Futures 2005, Springer, Dordrecht, pp. 83



Sdegno, A. (2006)
Between Design and Survey: Interpretative Problems in the Study of Drawings for Digital Modelling
, MIA Journal, 1, 2006, pp. 3950



last changed 
2007/09/16 15:55 
