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

Figure 2

Whole process of fiber tracking based on NURBS. The knot vector was normalized, and its nodes are distributed evenly. The fitting rules are determined according to the relation between the fiber pathway and the diffusion orientation. Consecutive direction estimation is accomplished according to Algorithm 1. Convert function is as the equation given in the Algorithm 2.