Fig. 11
From: Stair phase-coding fringe plus phase-shifting used in 3D measuring profilometry
Phase-coding fringes captured from a foam holder using (a) Wang’s method, n = 1, p = 32, N = 32, S = 1 (b) Zheng’s method, the left one is n = 1, p = 32, N = 8, S = 4, and the right one is n = 2, p = 256, N = 4, S = 1, (c) Zhou’s method, n = 1, p = 32, N = 8, S = 4, and (d) the proposed method, n = 2, p = 64, N = 4, S = 4