Fig. 1. Schematic diagram of conventional high-speed 3D measurement

Fig. 2. Schematic of accurate phase acquisition. (a) Phase with noise；(b) proposed PDNet；(c) result by the proposed method

Fig. 3. Structure of the PDNet

Fig. 4. Simulation results. (a) Phase map with noise；(b) result by the proposed method；(c) comparison of the phase in the 100th column from Fig. 4(a),4(b) and the ground truth；(d) plotting error curves of the 100th column of Fig. 4(b) and 4(c)

Fig. 5. Phase error of simulated wrapped phase at T = 48,54,60,66,72,78

Fig. 6. Experiment results. (a) Phase map with noise；(b) result by the proposed method；(c) comparison of the phase in the 100th column from Fig. 6(a), 6(b) and the ground truth；(d) plotting error curves of the 100th column of Fig. 6(b) and 6(c)

Fig. 7. Phase error of actual measurement of wrapped phase at T= 48, 54, 60, 66, 72, 78

Fig. 8. Wrapping phase map before and after denoising and its error comparison. (a) Phase map with noise；(b) result by the proposed method；(c) phase error before denoising；(d) phase error after denoising

Fig. 9. Comparison of reconstruction results. (a) Reconstruction results before processing using the proposed method；(b) ideal reconstruction results；(c) reconstruction result by the proposed method；(d) reconstruction error curve