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Sensors 2010, 10(8), 7192-7215; doi:10.3390/s100807192

Performance Evaluation of Triangulation Based Range Sensors

1,* , 1
1 Department of Industrial Design, Art, Communication and Fashion (INDACO)—Politecnico di Milano, Via Durando 38/A, 20158, Milan, Italy 2 Department of Mechanical Engineering - Politecnico di Milano, Via La Masa 34, 20156, Milan, Italy
* Author to whom correspondence should be addressed.
Received: 5 July 2010 / Revised: 23 July 2010 / Accepted: 27 July 2010 / Published: 29 July 2010
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The performance of 2D digital imaging systems depends on several factors related with both optical and electronic processing. These concepts have originated standards, which have been conceived for photographic equipment and bi-dimensional scanning systems, and which have been aimed at estimating different parameters such as resolution, noise or dynamic range. Conversely, no standard test protocols currently exist for evaluating the corresponding performances of 3D imaging systems such as laser scanners or pattern projection range cameras. This paper is focused on investigating experimental processes for evaluating some critical parameters of 3D equipment, by extending the concepts defined by the ISO standards to the 3D domain. The experimental part of this work concerns the characterization of different range sensors through the extraction of their resolution, accuracy and uncertainty from sets of 3D data acquisitions of specifically designed test objects whose geometrical characteristics are known in advance. The major objective of this contribution is to suggest an easy characterization process for generating a reliable comparison between the performances of different range sensors and to check if a specific piece of equipment is compliant with the expected characteristics.
Keywords: metrological characterization; 3D measurement; laser scanner; pattern projection; resolution; uncertainty; accuracy metrological characterization; 3D measurement; laser scanner; pattern projection; resolution; uncertainty; accuracy
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Guidi, G.; Russo, M.; Magrassi, G.; Bordegoni, M. Performance Evaluation of Triangulation Based Range Sensors. Sensors 2010, 10, 7192-7215.

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