Fig. 5From: Intensity-curvature functional based digital high pass filter of the bivariate cubic B-spline model polynomial function(a), (a1), (a2): PSO-based HP filtered images of Figs. 4(a), (a1), (a2), respectively. (b), (b1), (b2): Transfer functions of PSO filter. (c), (c1), (c2): k-space magnitude of the PSO based filtered images shown in (a), (a1), (a2), respectivelyBack to article page