Automatic control of the positions and trajectories of a football match actors in order to measure their physical and tactical performance

摘要

In this paper we describe a video-data processing solution allowing the detection of the positions of all the players throughout a meeting in collective sport. Signals, coming from three fixed cameras covering the playground exhaustively, are treated by reproducing the background and extraction of the positions of the moving players. The gathered data enable us to measure the physical performances of each player (accomplished effort and its distribution per period of plays) as well as the tactical performances inspired by the polygons formed by players of the same team or the same section. We exploit the laws of perspective projection to represent the positions of the players on the field representation.