Fig. 1. Schematic of experimental setup

Fig. 2. Simulation results of phase unwrapping. (a) Wrapped phase of segmented spectral fringes and their difference; comparison of unwrapped results between proposed and existing methods under condition of (b) small or (c) big noise; (d) unwrapped results after noise reduction

Fig. 3. Experimental results of system stability. (a) Phase difference fluctuation with time; (b) histogram of phase fluctuation

Fig. 4. Surface profile imaging of tilted mirror. (a) Wrapped phase; (b) phase of synthetic wavelength; (c) compensation result with existing method; (d) compensation result with proposed method

Fig. 5. Measurement results of step vibration. (a) Wrapped result; (b) unwrapped result with proposed method

Fig. 6. Quantitative phase imaging of red blood cells