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

Table 1. RMS of different algorithms on entire image

Table 2. Comparison of running time and number of iterations of image with pull line

Table 3. RMS of entire image

Table 4. RMS of rectangular region

Table 5. RMS of non-rectangular regions

Table 6. Time comparison after adding strong Gaussian noises