“…In many of the existing works, next to audio or static visual cues, motion information is also used in the detection of violent scenes. Employed motion features range from simplistic features such as motion changes, shot length, camera motion or motion intensity [5,12,20,22], to more elaborated descriptors such as STIP, ViF [8,9] or dense trajectories, which have recently enjoyed great popularity. Dense trajectory features [25] have indeed received attention even among the VSD participants (e.g., [26,27,28]).…”