Automatic Road Pavement Assessment with Image Processing: Review and Comparison

Table 4

The function 𝑢₂ used in [46]. This table presents the values 𝑢₂(𝑠^′,𝑠) for the sites in low gray levels in Figure 3. In our experiments, like the authors, we have chosen 𝛽₁=−2, 𝛽₂=−1, and 𝛽₃=2.

	𝛾2,0	𝛾2,𝜋/4	𝛾2,𝜋/2	𝛾2,3𝜋/4
𝛾2,0	𝛽1	𝛽2	𝛽3	𝛽2
𝛾2,𝜋/4	𝛽2	𝛽1	𝛽2	𝛽3
𝛾2,𝜋/2	𝛽3	𝛽2	𝛽1	𝛽2
𝛾2,3𝜋/4	𝛽2	𝛽3	𝛽2	𝛽1