Fig. 1. Schematic Block diagram of shadow moiré measurement system

Fig. 2. Theoretical wrapped phase map

Fig. 3. Simulation results. (a) Proposed method; (b) GS method; (c) RMS error

Fig. 4. Real fringe patterns. (a) 1st frame; (b) 2nd frame; (c) 3rd frame

Fig. 5. Results of closed fringe patterns. (a) Wrapped phase of proposed method; (b) unwrapped phase of proposed method; (c) reconstructed height of proposed method; (d) reconstructed height of GS method

Fig. 6. Real open fringe patterns. (a) 1st frame; (b)2nd frame; (c) 3rd frame; (d) 4th frame; (e) 5th frame

Fig. 7. Reference phase

Fig. 8. Reconstructed phases. (a) PCA method; (b) three-frame method ; (c) proposed method

Fig. 9. Errors of reconstructed phases. (a) PCA method; (b) three-frame method; (c) proposed method; (d) comparison of errors in one row of three methods