Patent US 8,638,367

A television signal and image processing system that superimposes an indicator of the fall line of a golf green adjacent the hole on the green image to be televised to the viewer. This process is achieved by generating and storing typographical maps of the greens on a golf course and generating and storing the locations of the holes on those greens, the locations of the holes are then merged with topography of the individual greens, and then the high (above the hole) and low (below the hole) fall lines are calculated in xyz coordinates, and synthesized arrows having the same coordinates are then applied to the merged topography with one arrow on the high side of the hole point downwardly on the fall line in three dimensions and a second arrow on the low side of the hole also pointed downwardly.