Accurate and high-performance 3D position measurement of fiducial marks by stereoscopic system for railway track inspection

Alexey A. Gorbachev; Mariya G. Serikova; Ekaterina N. Pantyushina; Daria A. Volkova

doi:10.1117/12.2228160

29 April 2016 Accurate and high-performance 3D position measurement of fiducial marks by stereoscopic system for railway track inspection

Alexey A. Gorbachev, Mariya G. Serikova, Ekaterina N. Pantyushina, Daria A. Volkova

Author Affiliations +

Proceedings Volume 9896, Optics, Photonics and Digital Technologies for Imaging Applications IV; 98961I (2016) https://doi.org/10.1117/12.2228160
Event: SPIE Photonics Europe, 2016, Brussels, Belgium

Abstract

Modern demands for railway track measurements require high accuracy (about 2-5 mm) of rails placement along the track to ensure smooth, safe and fast transportation. As a mean for railways geometry measurements we suggest a stereoscopic system which measures 3D position of fiducial marks arranged along the track by image processing algorithms. The system accuracy was verified during laboratory tests by comparison with precise laser tracker indications. The accuracy of ±1.5 mm within a measurement volume 150×400×5000 mm was achieved during the tests. This confirmed that the stereoscopic system demonstrates good measurement accuracy and can be potentially used as fully automated mean for railway track inspection.

Citation Download Citation

Alexey A. Gorbachev, Mariya G. Serikova, Ekaterina N. Pantyushina, and Daria A. Volkova "Accurate and high-performance 3D position measurement of fiducial marks by stereoscopic system for railway track inspection", Proc. SPIE 9896, Optics, Photonics and Digital Technologies for Imaging Applications IV, 98961I (29 April 2016); https://doi.org/10.1117/12.2228160

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