Fig. 1. Simulated phase distributions, interferograms and interferograms after Gaussian high-pass filtering. (a), (b) Theoretical phase distributions corresponding to the circular and complex fringes; (c), (d) Interferograms with circular and complex fringes; (e), (f) Interferograms with circular and complex fringes after Gaussian high-pass filtering

Fig. 2. Phase error distributions of different phase-shifting algorithms. (a)-(e) Phase error distributions of circular fringes; (f)-(j) Phase error distributions of irregular fringes

Fig. 3. Phase errors RMS of different phase-shifting algorithms with different types of fringes (20 dB)

Fig. 4. Phase errors RMS of different phase-shifting algorithms with different types of fringes in the ideal case

Fig. 5. Phase errors RMS of different phase-shifting algorithms corresponding to the circular fringes with different levels of noise

Fig. 6. Phase errors RMS of different phase-shifting algorithms corresponding to the circular fringes with different phase shifts and 20 dB of noise

Fig. 7. Phase errors RMS of different phase-shifting algorithms corresponding to the circular fringes with different fringe numbers and 20 dB of noise

Fig. 8. Experimental layout of dual-mode snapshot interferometry

Fig. 9. Experimental phase distributions, phase-shifting interferograms and interferograms after Gaussian high-pass filtering. (a), (b) Theoretical phase distributions corresponding to the circular and irregular fringes; (c), (d) Interferograms with circular and irregular fringes; (e), (f) Interferograms with circular and irregular fringes after Gaussian high-pass filtering

Fig. 10. Experimental phase deviation distributions of different phase-shifting algorithms. (a)-(e) Phase deviation distributions of circular fringes; (f)-(j) Phase deviation distributions of irregular fringes