High-speed videogrammetric measurement of the displacement of suspendome structure node

Haibo Shi; Peng Chen; Dezhi Zhang; Jun Yang; Zhenyu Xu; Xiaohua Tong

doi:10.1117/12.3020958

19 January 2024 High-speed videogrammetric measurement of the displacement of suspendome structure node

Haibo Shi, Peng Chen, Dezhi Zhang, Jun Yang, Zhenyu Xu, Xiaohua Tong

Proceedings Volume 12980, Fifth International Conference on Geoscience and Remote Sensing Mapping (ICGRSM 2023); 129802K (2024) https://doi.org/10.1117/12.3020958
Event: Fifth International Conference on Geoscience and Remote Sensing Mapping (ICGRSM 2023), 2023, Lianyungang, China

Abstract

Conventional vision-based methodologies encounter challenges when measuring the displacement of the internal point of the object. This paper proposes a practical videogrammetric method for measuring the internal point displacements of the suspendome structure node using a pair of high-speed cameras. Firstly, the intrinsic parameters of each camera are calibrated using a precise calibration board, and the extrinsic parameters are calculated by the bundle adjustment and the circular marks that are fixed in the common field of view. Then, the initial 3D position of internal point of suspendome structure node is calculated by the specially designed marks and the high-precision total station. The displacement of the suspendome structure node's internal point is derived by tracking the markers affixed to the surface of the structure node and combined with spatial coordinate transformation. In a suspendome structure disruption experiment, the internal point's measurement accuracy is about the submillimeter when compared to the total station, and the credibility of the measurements is further verified by comparison with numerical simulations.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Haibo Shi, Peng Chen, Dezhi Zhang, Jun Yang, Zhenyu Xu, and Xiaohua Tong "High-speed videogrammetric measurement of the displacement of suspendome structure node", Proc. SPIE 12980, Fifth International Conference on Geoscience and Remote Sensing Mapping (ICGRSM 2023), 129802K (19 January 2024); https://doi.org/10.1117/12.3020958

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