Figure 2
From: Quantitative evaluation of comb-structure correction methods for multispectral fibrescopic imaging
Performance scores for 4 correction methods applied to simulated monochrome images for magnifications M = 0.7, 1.0 and 1.3. (a) Resolution score. Rmax = 82.3, 102, 103 pixels (648, 803, 809μm) and Rmin = 21.4, 22.4, 23.5 pixels (169, 177, 185 μm) for M = 0.7, 1.0, 1.3 respectively. (b) Smoothness score. σmax = 20.3, 19.9, 20.1 and σmin = 0.638, 0.388, 0.346 for M = 0.7, 1.0, 1.3 respectively. (c) Signal score. Smax = 151, 156, 156 and Smin = 118, 117, 118 for M = 0.7, 1.0, 1.3 respectively. Gaussian filtering (sky blue), median filtering (bluish green), Fourier filtering (orange), interpolation (blue). Dotted line M = 0.7, Solid line M = 1.0, Dashed line M = 1.3. Since interpolation between irregularly spaced points is a complex spatially variant filter, the characteristic filter size is not well defined, so the score for interpolation is represented as a horizontal line in each graph.
