Figure 3.

A vector field within a tube centering at a voxel p₀. (A) Tube $T_{p_0}^k$ (yellow box) centering at p₀ along the peak direction v_p0 of the k^th FOD component $F_{p_0}^k$ (green). (B) The FODs within the tube and the {$F_{pt}^k$} are in green. (C) The vectors {v_pt} are picked at voxels within the tube, and these vectors are used to solve (3) and compute the supporting vector field $V_{p_0}^k$ .