1. A method of identifying objects with salient motion in a scene, said method comprising of the steps of: a) identifying a region of change within a scene; b) determining optical flow for said region; c) identifying seed pixels moving in a common direction in said region; d) expanding identified said seed pixels, pixel clusters being formed from expanded said seed pixels; and d) fusing results of steps (a), (b) and (c), fused said results identifying objects having salient motion.