Escola Superior de Conservació i Restauració de Bés Culturals de Catalunya
Image from Google Jackets

Geometric characterizaton of cylinder-shaped structure from laser scanner data: Development of an analysis tool and its use on a leaning bell tower

Contributor(s): Giordiano Teza, Arianna PesciMaterial type: ArticleArticleDescription: 13 pISBN: 1296-2074Subject(s): Campanar de Caorle | Campanar inclinado | Campanar inclinat | Caorle's bell tower | Damage recognition | Escaner laser | Laser scanning | Leaning bell tower | Reconeixement de danys | Reconocimiento de daños In: Journal of Cultural Heritage 5 14 5, 411-423Abstract: The romanesque-byzantine style, 1000 years old leaning bell tower of Caorle (Venice, Italy) is a unique masonry structure, characterized by single and double lancet windows harmonically distributed on a cylinder-shaped shaft surmounted by a conic cusp. A terrestrial laser scanning (TLS) survery was carried out in 2011 and some analyses were performed on the resulting point cloud to provide the following: bell tower leaning angle, wall inclination/tapering and radius, local deviation from circular shape, and local curvature. Emphasis was placed on the changes of these quantities with elevation. In order to perform these analyses, a MATLAB/Octave toolbox was developed and is available as supplementary material of this paper. In this way, a reliable picture of the urrent geometry of the ball tower was obtained. In particular, a correlaton between learning angle (avarage value 1.4° towards East-South-East) and some surface deformations and damage (bulges, brick, displacements or also material loss) was found. These results ae used for cultural heritage preservation purposes.
Star ratings
    Average rating: 0.0 (0 votes)
Holdings
Item type Current library Call number Status Date due Barcode
Article de revista Article de revista Biblioteca de l' Escola Superior Conservació i Restauració de Bens Culturals de Catalunya
Journal of Cultural Heritage 5 (Browse shelf(Opens below)) Available Art-179

The romanesque-byzantine style, 1000 years old leaning bell tower of Caorle (Venice, Italy) is a unique masonry structure, characterized by single and double lancet windows harmonically distributed on a cylinder-shaped shaft surmounted by a conic cusp. A terrestrial laser scanning (TLS) survery was carried out in 2011 and some analyses were performed on the resulting point cloud to provide the following: bell tower leaning angle, wall inclination/tapering and radius, local deviation from circular shape, and local curvature. Emphasis was placed on the changes of these quantities with elevation. In order to perform these analyses, a MATLAB/Octave toolbox was developed and is available as supplementary material of this paper. In this way, a reliable picture of the urrent geometry of the ball tower was obtained. In particular, a correlaton between learning angle (avarage value 1.4° towards East-South-East) and some surface deformations and damage (bulges, brick, displacements or also material loss) was found. These results ae used for cultural heritage preservation purposes.

There are no comments on this title.

to post a comment.

Powered by Koha