Resumo

PORRAS DIAZ, Hernán; CACERES JIMENEZ, Jhon Jairo  e  GALLO LANCHEROS, Elver Omar. Three-dimensional urban models generated from point clouds of a terrestrial laser scanner. Tecnura [online]. 2014, vol.18, n.41, pp.134-153. ISSN 0123-921X.

The state of the art of the processing methods for TLS (terrestrial laser scanner) digital point clouds is shown in this paper. The TLS is an instrument able to capture topographic and geometric information of any structure at millimeter accuracy. Also, in some cases, they capture radiometric information of the scanned objects. The collected information is represented by point clouds that are used on a wide range of applications such as planning of urban development, structural analysis, erosion and deforestation modeling, cultural heritage preservation and virtual navigation. The purpose of this work is to offer a review of the state of the art on the methods used through the several steps of the point cloud processing workflow: relative and absolute registration, segmentation, classification and three dimensional modeling.

Palavras-chave : classification; model 3D; segmentation; terrestrial scanner.

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