Zhuocan Jiang, Yueqiang Zhang, Biao Hu, Xiaolin Liu, Qifeng Yu. A Calibration Method for Extrinsic Parameters of Monocular Laser Speckle Projection System[J]. Acta Optica Sinica, 2023, 43(3): 0315001
- Acta Optica Sinica
- Vol. 43, Issue 3, 0315001 (2023)
Fig. 1. Flow chart of calibration for proposed method
Fig. 2. Schematic of calibration board
Fig. 3. Speckle image of calibration board
Fig. 4. Fitting of the projector's optical center
Fig. 5. Experiment system
Fig. 6. Depth map of the planar board
Fig. 7. Displacement measurement results of the planar board
Fig. 8. Speckle image of standard spheres
Fig. 9. 3D model of the right sphere in Fig. 8
Fig. 10. Experimental images of the fifth group. (a) Speckle image of camera; (b) virtual speckle image of projector
Fig. 11. Test object and its 3D reconstruction results. (a) Color image; (b) speckle image; (c) reconstruction result of Astra-Pro;(d) reconstruction result of proposed method
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Table 1. Radius measurement data and error of standard spheres in Fig. 8
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Table 2. Comparison between Astra-Pro and proposed method
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