Fig. 1. Simulation results. (a) Distorted phase map in simulation;(b) phase diagram compensated by original PVM method; (c) phase diagram compensated by improved PVM method

Fig. 2. Experimental results of loading phase diagram of spatial light modulator. (a) Schematic diagram of Michelson interferometry image plane;(b) phase map produced by SLM; (c) received hologram; (d) reconstructed uncompensated wrapped phase map,its color bar is the same as Fig. 1(a); (e) phase diagram compensated by improved PVM method; (f) phase diagram compensated by original PVM method, Figs. 2(b), (e), (f) have the same color bar

Fig. 3. Experimental results of red blood cells. (a)Hologram of blood cells; (b) reconstructed uncompensated wrapped phase map; (c) wrapped phase diagram compensated by improved PVM method; (d) wrapped phase diagram compensated by original PVM method; (e) corresponding unwrapped phase map of Fig. 3(c); (f) corresponding unwrapped phase map of Fig. 3(d), color bar of Fig. 3(c) and Fig. 3(d) is the same as Fig. 1(a), Figs. 3(e) and Fig.3(f) have the same color bar

Fig. 4. Compensated unwrapped phase map obtained by sampling PVM method. (a) Compensated unwrapped phase diagram corresponding to Fig. 1 (a); (b) that of Fig. 2 (d); (c) that of Fig. 3 (b), their color bars are the same as Fig.1(b), Fig.2(e),and Fig.3(e), respectively

Table 1. Coefficients of Zernike polynomial in simulations