Figure 5. DWI Resolution Enhancement.
DW images were up-sampled to a (0.5mm)3 resolution from the original (2mm)3 resolution. (A) The anisotropy image of the original data; (B) The linearly up-sampled anisotropy image (i.e., scalar interpolation); (C) The anisotropy image of the linearly up-sampled DWI data; and (D) The anisotropy image given by the proposed method. Close-up views are shown in Fig. 6.