Fig. 1. Grayscale curves of speckle interference

Fig. 2. Matrix example

Fig. 3. New matrix example

Fig. 4. Flow chart of RMI-WLS algorithm

Fig. 5. Identify results of cable and noise area. (a) Three-dimensional graph of peak function; (b) wrapping phase diagram with extension wire; (c) mask matrix diagram of Fig. (b); (d) raster image; (e) drawing of cable noise; (f) mask matrix diagram of Fig.(e); (g) wrapping phase diagrams; (h) mask matrix diagram of Fig. (g)

Fig. 6. Comparison of iteration times and running time of 5 algorithms. (a) Number of iterations; (b) running time

Fig. 7. Results of unwrapping package. (a) Ideal wrapping phase; (b) wrapping phase of galas; (c) unwrapping result of proposed algorithm; (d) unwrapping of SOR for ?; (e) unwrapping of SOR for k; (f) unwarpping of Gauss-Seidel for ?; (g) unwarpping of Gauss-Seidel for k

Fig. 8. Phase diagram with high density local noise. (a) Ideal original phase diagram; (b) phase diagram of RMI-WLS after unwrapping; (c) phase diagram of WLSA-PDA after unwrapping; (d) phase diagram of PCA after unwrapping