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Triangulation Position Error Analysis for Closely Spaced Imagers
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 04, 2002 by SAE International in United States
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This paper provides an error analysis for a typical two camera, 3D triangulation system used in automotive crash test analysis. Accuracy of this 3D measurement for analysis of simple planar motion is compared to the accuracy expected from a comparable single sensor analysis system using calibration objects within the field of view. Both approaches are shown to produce errors on the order of 1 mm, object to object or frame to frame. This work also demonstrates how to utilize basic triangulation error equations to start from a given accuracy requirement and flow down an error budget in order to develop the basic sensor geometry and measurement requirements. The current work extends previous theoretical work which developed the basic error propagation theory for 3D triangulation.
CitationSanders-Reed, J., "Triangulation Position Error Analysis for Closely Spaced Imagers," SAE Technical Paper 2002-01-0685, 2002, https://doi.org/10.4271/2002-01-0685.
- “Image-based motion measurement: new technology, new applications” Waldon J.S. Proc of the SPIE 2513 August 1994
- “Vehicle Real-time Attitude Estimation System (VRAES)” Sanders-Reed J.N. Proc of the SPIE 2739 April 1996
- “Error propagation in multi-sensor 3D position estimation” Sanders-Reed J.N. Optical Engineering 40 4 April 2001
- “Algorithms for fully automated three-dimensional particle tracking velocimetry” Guezennec Y.G. Brodkey R.S. Trigui N. Kent J.C. Experiments in Fluids 17 1994
- “Reconstruction of a 3-dimensional flow field from orthogonal views of seed track video images” Adamczyk A.A. Rimain L. Experiments in Fluids 6 1988