Rock Falls Impacting Railway Tracks: Detection Analysis through an Artificial Intelligence Camera Prototype

Figure 10

Example of parabolic trajectory of a launched rock block (orange frame). The launched block crosses the RoI of alert (yellow frame) and the algorithm of the AiCP checked it (a); the block falls into the RoI of alarm and rests (red frame; c). The change detection analysis quantifies the modified pixels and an alert signal is remotely transmitted to the control station. The smiling emoticon indicates the block pitcher.

(a)

(b)

(c)