Guihua Li, Ziwei Wang, Weiqing Sun, Pengxiang Ge, Haoyu Wang, Mei Zhang. Application of Dual-Plane-Mirror Dual-Camera Digital Image Correlation Technology in Three-Dimensional Reconstruction[J]. Acta Optica Sinica, 2024, 44(8): 0812003
- Acta Optica Sinica
- Vol. 44, Issue 8, 0812003 (2024)
Fig. 1. Binocular DIC measurement system with dual-plane mirror
Fig. 2. Schematic diagram of subset-based binocular DIC measurement system
Fig. 3. Analysis of specular reflection transformation
Fig. 4. Obtaining mirror position equations
Fig. 5. 3D reconstruction of corner points based on common vertical midpoint method
Fig. 6. Diagram of experimental setup. (a) Mirror-assisted binocular DIC measurement system; (b) physical picture of coin; (c) physical picture of five-edge aluminum column; (d) heating furnace
Fig. 7. Partial calibration images of mirror position. (a) Left camera; (b) right camera
Fig. 8. Physical picture of game coins
Fig. 9. 3D reconstruction of game coins. (a) Reconstruction effect of proposed method; (b) reconstruction effect of method of spraying diffuse spots on mirror surface
Fig. 10. Reconstruction results of outer surfaces of aluminum column
Fig. 11. Thermal deformation results of five outer surfaces of aluminum column. (a) Surface A; (b) surface B; (c) surface C; (d) surface D; (e) surface E
Fig. 12. Height variation trend of plane A to E during temperature reduction
Fig. 13. Deviation values of height changes during temperature reduction for both methods
Fig. 14. Mesh division and thermal deformation simulation of specimen by Ansys. (a) Finite element meshing map; (b) simulation result of thermal deformation
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Table 1. Two mirror equations and reflection transformation matrix
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Table 2. Heights of different surfaces at starting and ending temperatures of aluminum column
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Table 3. Physical parameters of aluminum
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