Fig. 3
From: Stabilization and visual analysis of video-recorded sailing sessions

Output of the PPHT and the line used as the horizon. a: Lines detected after applying the line detection algorithm; b: Example of horizon line obtained from (a)
From: Stabilization and visual analysis of video-recorded sailing sessions
Output of the PPHT and the line used as the horizon. a: Lines detected after applying the line detection algorithm; b: Example of horizon line obtained from (a)