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. Author manuscript; available in PMC: 2017 Apr 1.
Published in final edited form as: Comput Methods Programs Biomed. 2016 Jan 6;127:290–300. doi: 10.1016/j.cmpb.2015.12.018

Fig. 1.

Fig. 1

(a) 2D example image of 32 × 32 voxels (small squares) with aligned overlaying 5 × 5 control node (gray circles) grid creating partition of 4 tiles of 16 × 16 voxels each. (b) Emphasis on upper-left tile (shaded darker gray) and its 16 surrounding control nodes (solid black circles). In each tile, the voxels in solid black (5, 4), (21, 4), (5, 20), and (21, 20) share the same local index (5,4) within their respective tiles, as well as the same local normalized coordinates.