A PSO-Powell Hybrid Method to Extract Fiber Orientations from ODF

Table 4

Convergence time of extracting fiber orientation from three-fiber ODF.

Three-fiber ODF	Ball-stick	Modified Powell; QBI/CSA-QBI/DOT	Diffusion decomposition; QBI/CSA-QBI/DOT	PSO-Powell; QBI/CSA-QBI/DOT
Noise-free	1.13 s	82.57 s/82.17 s/87.03 s	102.27 s/98.11 s/90.83 s	46.60 s/45.73 s/50.52 s
	1.21 s	92.80 s/83.74 s/91.70 s	121.95 s/110.25 s/117.12 s	50.16 s/48.96 s/50.62 s