Fig. 3.

Illustrative example of the sampling patterns implemented throughout this paper. Subfigure (a) depicts the (k, t)-space sampling schedules for D₁ (outlined circles) and D₂ (filled circles) for 2-D imaging with parameters N_d = 3, N_ACS = 9, and P = 4. Subfigures (b) and (c) depict the k-space sampling locations ${\left\{{\mathbf{k}}_{j,1}\right\}}_{j=1}^{J_1}\mathrm{and}{\left\{{\mathbf{k}}_{j,2}\right\}}_{j=1}^{J_2}$ respectively.