Fig. 1. Wavefront relationship in CCD recording process

Fig. 2. Topology of RBF network in phase recovery

Fig. 3. Flow chart of RBF phase recovery algorithm

Fig. 4. Simulation results: (a) Digital hologram; (b) Fourier spectrum; (c) FTM initial reconstruction phase; (d) RBF compensation phase and selected training scatters; (e) corrected phase; (f) the simulated object, SCM, PCA and RBF data at the white line section

Fig. 5. The change of loss function with the number of iterations

Fig. 6. System diagram

Fig. 7. Experimental results. (a) Digital hologram; (b) PCA reconstruction phase; (c) SCM reconstruction phase; (d) RBF reconstruction phase; (e) DEM reconstruction phase; (f) the white line section data in Fig. 7 (a)

Fig. 8. Experimental results. (a) Digital hologram; (b) the mask for obtaining training data; (c) SCM reconstruction phase; (d) PCA reconstruction phase; (e) DEM reconstruction phase; (f) RBF reconstruction phase

Fig. 9. The phase difference value between DEM and RBF