Xinxing Shao, Fang Yuan, Kang Wei, Xiaoyuan He. Advances in High-Accuracy Three-Dimensional Dynamic Deformation Measurement and its Applications for Large Structures[J]. Laser & Optoelectronics Progress, 2023, 60(8): 0811013
- Laser & Optoelectronics Progress
- Vol. 60, Issue 8, 0811013 (2023)
Fig. 1. Schematic of binocular vision measurement
Fig. 2. Schematic of multi-camera panoramic deformation measurement
Fig. 3. Large-scale digital speckle fabrication method
Fig. 4. Calibration of camera intrinsic and extrinsic parameters based on photogrammetry［10］
Fig. 5. Schematic of multi-camera coordinate system unification
Fig. 6. Schematic of deformation measurement for high-rise cassette structure[15]
Fig. 7. Comparison of measured results under Imperial Valley wave［15］. (a) Displacement; (b) acceleration
Fig. 8. FFT results of the roof displacement under different PGA conditions［15］
Fig. 9. Full-field results at the maximum displacememt deformation［15］. (a) Maximum displacement in positive direction; (b) maximum displacement in negative direction
Fig. 10. On-site photo of cable-supported dome structure and measurement system layout［16］
Fig. 11. Three-dimensional reconstruction results of encoded markers［16］. (a) Reconstructed result of image captured by UAV; (b) reconstructed result of image captured by SLR camera; (c) results of two sets of reconstructed data after the coordinate system unification
Fig. 12. Displacement of counterweight nodes before and after tension［16］
Fig. 13. Movement direction and vertical displacement of nodes during progressive collapse［16］. (a) Area division of the movement direction of the counterweight nodes after the cable cutting; (b) vertical displacement of nodes and structural collapse stage
Fig. 14. Schematic of the multi-camera panoramic deformation measurement system［17］
Fig. 15. Site view of multi-camera panoramic deformation measurement system［17］
Fig. 16. 360° panoramic deformation in cylindrical coordinate system［17］
Fig. 17. Static noise of displacement and strain measurement
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