Terrestrial laser scanning used to detect asymmetries in boat hulls

Roca-Pardiñas, Javier; López-Alvarez, Francisco; Ordóñez, Celestino; Menéndez, Agustín; Bernardo-Sánchez, Antonio

doi:doi:10.1117/1.OE.51.1.013605

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Optical Engineering / Volume 51 / Issue 1 / Instrumentation, Measurement, and Metrology

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Terrestrial laser scanning used to detect asymmetries in boat hulls

Opt. Eng. 51, 013605 (Feb 07, 2012); http://dx.doi.org/10.1117/1.OE.51.1.013605

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Abstract

References (28)

Javier Roca-Pardiñas and Francisco López-Alvarez

University of Vigo, Department of Statistics and Operational Research, Vigo, Spain

Celestino Ordóñez

University of Vigo, Department of Environmental Engineering, Vigo, Spain

University of Oviedo, Cartographic Engineering Area, University of Oviedo, Oviedo, Spain

Agustín Menéndez

University of Oviedo, Computer Graphics Area, Oviedo, Spain

Antonio Bernardo-Sánchez

University of Oviedo, Polytechnic School of Mieres, Mieres, Spain

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.

History

Received Aug 02, 2011
Accepted Nov 28, 2011
Revised Oct 25, 2011
Published online Feb 07, 2012

Digital Object Identifier

http://dx.doi.org/10.1117/1.OE.51.1.013605

Citation

Javier Roca-Pardiñas, Francisco López-Alvarez, Celestino Ordóñez, Agustín Menéndez and Antonio Bernardo-Sánchez, "Terrestrial laser scanning used to detect asymmetries in boat hulls", Opt. Eng. 51, 013605 (Feb 07, 2012); http://dx.doi.org/10.1117/1.OE.51.1.013605