Fig. 1. Errors for different carrier frequencies when interferogram background is homogeneous. (a) Error of f_x; (b) error of f_y; (c) error of f_z

Fig. 2. Errors for different carrier frequencies when interferogram background is not homogeneous. (a) Error of f_x; (b) error of f_y; (c) error of f_z

Fig. 3. Simulation of application for carrier frequency parameters in phase-shift interferometry. (a) Phase-shift interferograms; (b) actual phase; (c) calculated phase; (d) residual

Fig. 4. Comparison between proposed method and phase-shift method

Fig. 5. Experiment of the application for carrier frequency parameters in phase-shift interferometry. (a) Phase-shift interferograms; (b) phase

Fig. 6. Effect of estimates. (a) Effect of estimates on f_x; (b) effect of estimates on f_y; (c) effect of estimates on f_z

Fig. 7. Effect of PV of phase. (a) Effect of phase on f_x; (b) Effect of phase on f_y; (c) Effect of phase on f_z