Nondestructive Testing on Ancient Wooden Components Based on Shapley Value

Figure 6

Two-dimensional plot of the drilling resistance results of Section C. (a) Path one. (b) Path two. (c) Path three. Note: horizontal coordinates indicate the depth of the probe path and vertical coordinates show that the density distribution and the early and late wood performance of the probe differ as the probe advances inside the pillar. Location of damaged section in red box.

(a)

(b)

(c)