Real-world trajectory extraction for attack pattern analysis in soccer video

Abstract

Most existing approaches on tactic analysis of soccer video are based on mosaic trajectory analysis, which loses much semantic information comparing to the real-world trajectory. Without effective extraction of real-world trajectory, the tactic of soccer cannot be properly represented and analyzed from the perspective of soccer professionals. In this paper, a real-world trajectory extraction method is proposed. Moreover, six attack patterns are defined to represent tactic of soccer, and a novel attack pattern recognition algorithm is developed based on the analysis of the ball's state and real-world trajectory. To our best knowledge, this is the first work of its kind that systematically analyzes tactic of soccer based on real-world trajectory for broadcast soccer video. Our experiments demonstrate that the defined attack pattern can be effectively recognized.