Fig. 1. Phase expansion of complementary Gray code combined with phase shift method

Fig. 2. Grayscale comparison of row in reverse complementary Gray code coding pattern

Fig. 3. Schematic diagram of projection pattern composition

Fig. 4. Acceleration principle

Fig. 5. Multiple structured light system structures

Fig. 6. Physical map of system structure

Fig. 7. Results of projection acceleration comparative experiment

Fig. 8. Comparison of errors between measured values and true values， and measured values and mean values under different projection methods

Fig. 9. Three-dimensional reconstruction of standard sphere under projection of different coding fringes

Fig. 10. Absolute phase with Gaussian noise

Fig. 11. Reconstruction results of three encoding schemes on different objects