White Matter Fiber Tractography Using Nonuniform Rational B-Splines Curve Fitting

Figure 1

Extraction of consecutive diffusion directions along a fiber pathway. V1 (blue line in the seed voxel) and V2 (orange line in the seed voxel) denote the two diffusion directions in the seed voxel (the green square). The dark solid line denotes the distance between V1 and the center of the neighbor voxels. (a) Finding the consecutive directions under the constraints of distance, angle and length. The red lines denote the distances less than the threshold. The red arcs denote the angles between the consecutive directions. (b) Unreasonable pathway found with FACT.

(a)

(b)