Fig. 1. Fringe projection and acquisition

Fig. 2. Wrapped phase, unwrapped phase and 3D point cloud

Fig. 3. Fourier spectrum of computer simulation of intensity saturated fringe. (a) Fringe and spectrum of k=1; (b) fringe and spectrum of k=2; (c) fringe and spectrum of k=3

Fig. 4. Fourier spectrum of intensity-saturated fringe modulated by computer-simulated object. (a) Simulated surface; (b) fringe of k=1; (c) fringe of k=2; (d) a row of pixels of k=1; (e) a row of pixels of k=2; (f) spectrum of k=1; (g) spectrum of k=2

Fig. 5. Comparison of experimental results on the surface of complex metal part. (a) Complex metal part; (b) high-frequency acquired fringe on complex metal part; (c) unwrapped phase based on traditional method; (d) unwrapped phase based on the proposed method; (e) local magnification comparison and unwrapped phase comparison of a row of pixels

Fig. 6. Comparison of experimental results of the proposed and traditional methods. (a) Acquired fringe based on traditional method; (b) extracted optimal acquired fringe based on multi-exposure method (23 exposures); (c) adaptive intensity template, adaptive projected fringe, and acquired fringe after adaptive projected fringe for adaptive fringe projection method; (d) unwrapped phase based on traditional method; (e) unwrapped phase based on multi-exposure method (23 exposures); (f) unwrapped phase based on adaptive fringe projection method; (g) unwrapped phase based on the proposed method