Automatic Road Pavement Assessment with Image Processing: Review and Comparison

Table 5

The comparison of the 4 manual segmentations for estimating the final reference segmentations. For each image, we specify: the percentage of pixels in the whole image that are preserved as crack pixels in the final reference segmentation (F), the percentage of recovering between 2, 3 and 4 manual segmentations and the sum of these 3 percentages (S). For all the crack pixels that are not preserved in the final reference segmentation, the mean distance to this segmentation is given (D).

Images	F (%)	2 (%)	3 (%)	4 (%)	S (%)	D (pix)
42	0.4	26.69	14.59	4.2	45.48	1.45
463	0.17	23.46	5.95	0.39	29.8	1.4
936	0.41	23.52	7.41	0.9	31.83	7.05
41	0.33	22.64	7.31	1.33	31.28	3.56
88	1.44	22.74	8.23	1.23	32.2	2.76