Complex Texture Contour Feature Extraction of Cracks in Timber Structures of Ancient Architecture Based on YOLO Algorithm

Figure 3

Different types of timber structure cracks in ancient architecture. (a) Type1 (b) type2 (c) type3, (d) type4 (e) type5 (f) type6, (g) type7 (h) type8 and (i) type9.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)