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Optical Engineering

Terrestrial laser scanning used to detect asymmetries in boat hulls
Author(s): Javier Roca-Pardinas; Francisco Lopez-Alvarez; Celestino Ordonez; Agustin Menendez; Antonio Bernardo-Sanchez
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Paper Abstract

We describe a methodology for identifying asymmetries in boat hull sections reconstructed from point clouds captured using a terrestrial laser scanner (TLS). A surface was first fit to the point cloud using a nonparametric regression method that permitted the construction of a continuous smooth surface. Asymmetries in cross-sections of the surface were identified using a bootstrap resampling technique that took into account uncertainty in the coordinates of the scanned points. Each reconstructed section was analyzed to check, for a given level of significance, that it was within the confidence interval for the theoretical symmetrical section. The method was applied to the study of asymmetries in a medium-sized yacht. Identified were differences of up to 5 cm between the real and theoretical sections in some parts of the hull.

Paper Details

Date Published: 7 February 2012
PDF: 6 pages
Opt. Eng. 51(1) 013605 doi: 10.1117/1.OE.51.1.013605
Published in: Optical Engineering Volume 51, Issue 1
Show Author Affiliations
Javier Roca-Pardinas, Univ. de Vigo (Spain)
Francisco Lopez-Alvarez, Univ. de Vigo (Spain)
Celestino Ordonez, Univ. de Vigo (Spain)
Agustin Menendez, Univ. de Oviedo (Spain)
Antonio Bernardo-Sanchez, Univ. de Oviedo (Spain)

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