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Optical Engineering

Metrological comparison of terrestrial laser scanning systems Riegl LMS Z390i and Trimble GX
Author(s): Higinio Gonzalez-Jorge; Maria Varela-Gonzalez; Pablo Rodriguez-Gonzalvez; Diego Gonzalez-Aguilera
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Paper Abstract

A low cost physical artifact with traceability to the national standard - meter is used for the metrological comparison of two terrestrial laser scanning systems: Riegl LMS Z390i and Trimble GX. The artifact is based on five spheres equidistantly situated and seven cubes of different dimensions. Accuracy and repeatability are evaluated using least squares fitting (LSF) and random sample consensus algorithms, for the study case of the spheres, and plane LSF and statistical analysis for the cubes. The horizontal resolution is evaluated using a modulated transfer function approach and the vertical one with the accuracy and repeatability data along Z axis. The Trimble system shows better results for all parameters, artifact parts, and algorithms under study.

Paper Details

Date Published: 1 November 2011
PDF: 10 pages
Opt. Eng. 50(11) 116201 doi: 10.1117/1.3646395
Published in: Optical Engineering Volume 50, Issue 11
Show Author Affiliations
Higinio Gonzalez-Jorge, Univ. de Vigo (Spain)
Maria Varela-Gonzalez, Univ. de Vigo (Spain)
Pablo Rodriguez-Gonzalvez, Univ. de Salamanca (Spain)
Diego Gonzalez-Aguilera, Univ. de Salamanca (Spain)

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