1. A method for deriving an occupancy map for an athlete participating in a sporting event taking place on a playing area, comprising the steps of: determining a spatio-temporal trajectory corresponding to motion of an athlete on the playing area; computing an occupancy map based on the trajectory with respect to time and a geometry of the playing area; transforming the occupancy map to the plane of the playing area; generating a color coded occupancy map, the color coding representing various levels of occupancy relative to various areas of the playing area; and overlaying the color coded occupancy map over an image of the playing area.