Fig. 1. The overall structure of the network

Fig. 2. Structure diagrams of encoding module and decoding module. (a) Downblock; (b) upblock

Fig. 3. Network operation flowchart. (a) Training process; (b) test process

Fig. 4. Model training results

Fig. 5. Test results of test set. (a) (b) (c) Wrapped phase diagrams; (d) (e) (f) real phase diagrams; (g) (h) (i) UCNet unwrapping phase diagrams

Fig. 6. Using DCT, DLPU, and UCNet to encapsulate phase diagrams with different noise factors

Fig. 7. Phase unwrapping SSIM using different methods after adding noise

Fig. 8. Experimental optical path diagram

Fig. 9. Experimental equipment

Fig. 10. Experimental Comparison Chart