Haihua Zhang, Yong Li, Qican Zhang. Dynamic 3D Shape Measurement Based on Rotating Grating Projection[J]. Acta Optica Sinica, 2021, 41(23): 2312005
- Acta Optica Sinica
- Vol. 41, Issue 23, 2312005 (2021)
Fig. 1. Principle of TFTP. (a) Optical geometry; (b) intensity distribution along temporal axis at the same point
Fig. 2. Intensity (a) and Fourier spectrum (b) distribution of point P(x,y) along temporal axis of single frequency fringe
Fig. 3. Intensity (a) and Fourier spectrum (b) distribution of point P(x,y) along temporal axis of three-frequency phase-shifting composite fringe
Fig. 4. Simulated composite grating. (a) f1= 5; (b) f2= 12; (c) f3= 20; (d) composite fringes
Fig. 5. Measured object at t=200
Fig. 6. Deformed fringe at t=200
Fig. 7. Measurement result at t=200. (a) 3D reconstructed result; (b) absolute error distribution; (c) height distribution and absolute error on row 450
Fig. 8. Schematic diagram of a TFTP setup
Fig. 9. Rotating projector
Fig. 10. Radial grating
Fig. 11. System calibration process. (a) Standard block; (b) deformed fringes; (c) unwrapped phase distribution
Fig. 12. Motion reconstruction of the mini cylinders at different moments. (a) Deformed fringes; (b) 3D reconstructed shape of (a)
Fig. 13. Measurement of adult gestures. (a) Deformed fringes; (b) 3D reconstructed results of (a)
Fig. 14. Difference between of reconstructed phase of a standard plane by three methods. (a) Proposed method; (b) TFTP with single-frequency grating; (c) traditional FTP with single-frequency
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