RECONSTRUCTING CCTV, BEIJING

This paper deals with the reconstruction of a building, starting from a point cloud. The shape of this building is a non-stellar concave and multi-connected structure, composed of sowns and chains. A sown is the representation of a horizontal plane formed by dense points. A chain is a planar loop mo...

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Main Authors: V. Forcella, L. Mussio
Format: Article
Language:English
Published: Copernicus Publications 2012-09-01
Series:The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Online Access:http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XXXVIII-5-W16/113/2011/isprsarchives-XXXVIII-5-W16-113-2011.pdf
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spelling doaj-b7e4f7486184429c8cc6d2c18dfa222c2020-11-24T21:03:59ZengCopernicus PublicationsThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences1682-17502194-90342012-09-01XXXVIII-5/W1611312010.5194/isprsarchives-XXXVIII-5-W16-113-2011RECONSTRUCTING CCTV, BEIJINGV. Forcella0L. Mussio1DIIAR – Sezione Infrastrutture Viarie Politecnico di Milano Piazza Leonardo da Vinci, 32 – 20133 Milano, ItalyDIIAR – Sezione Infrastrutture Viarie Politecnico di Milano Piazza Leonardo da Vinci, 32 – 20133 Milano, ItalyThis paper deals with the reconstruction of a building, starting from a point cloud. The shape of this building is a non-stellar concave and multi-connected structure, composed of sowns and chains. A sown is the representation of a horizontal plane formed by dense points. A chain is a planar loop modeled by rare points. CCTV structure is defined only by the three orthogonal Cartesian coordinates. The reconstruction uses a sequence of procedures and the desired output is a consistent 3D model. The first procedure is devoted to attributing points to their voxel and to estimating the three values needed afterwards. The second procedure is devoted to analyzing clusters vertically and horizontally, to preliminarily distinguishing chains from sowns and to generating relational matching. The third procedure is devoted to building closed loops between all chains and all their projections on sowns. The fourth procedure is devoted to connecting points with triangles. The fifth procedure, still being implemented, is devoted to interpolating triangles with triangular splines.http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XXXVIII-5-W16/113/2011/isprsarchives-XXXVIII-5-W16-113-2011.pdf
collection DOAJ
language English
format Article
sources DOAJ
author V. Forcella
L. Mussio
spellingShingle V. Forcella
L. Mussio
RECONSTRUCTING CCTV, BEIJING
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
author_facet V. Forcella
L. Mussio
author_sort V. Forcella
title RECONSTRUCTING CCTV, BEIJING
title_short RECONSTRUCTING CCTV, BEIJING
title_full RECONSTRUCTING CCTV, BEIJING
title_fullStr RECONSTRUCTING CCTV, BEIJING
title_full_unstemmed RECONSTRUCTING CCTV, BEIJING
title_sort reconstructing cctv, beijing
publisher Copernicus Publications
series The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
issn 1682-1750
2194-9034
publishDate 2012-09-01
description This paper deals with the reconstruction of a building, starting from a point cloud. The shape of this building is a non-stellar concave and multi-connected structure, composed of sowns and chains. A sown is the representation of a horizontal plane formed by dense points. A chain is a planar loop modeled by rare points. CCTV structure is defined only by the three orthogonal Cartesian coordinates. The reconstruction uses a sequence of procedures and the desired output is a consistent 3D model. The first procedure is devoted to attributing points to their voxel and to estimating the three values needed afterwards. The second procedure is devoted to analyzing clusters vertically and horizontally, to preliminarily distinguishing chains from sowns and to generating relational matching. The third procedure is devoted to building closed loops between all chains and all their projections on sowns. The fourth procedure is devoted to connecting points with triangles. The fifth procedure, still being implemented, is devoted to interpolating triangles with triangular splines.
url http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XXXVIII-5-W16/113/2011/isprsarchives-XXXVIII-5-W16-113-2011.pdf
work_keys_str_mv AT vforcella reconstructingcctvbeijing
AT lmussio reconstructingcctvbeijing
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