Image-Based Underwater Inspection System for Abrasion of Stilling Basin Slabs of Dam

Figure 6

Schematic diagrams of the operation of the integrated component without transparency: (a) siltation initial state; (b) siltation-removing state; (c) siltation-suspending state; and (d) siltation re-covered state.

(a)

(b)

(c)

(d)