There is possible technology available, in cricket here tv developed a system that can judge the trajectory of the ball isnt used by the umpires currently only the tv. The ball is delivered at around 60-100 miles per hour dependant on the bowler and the replay is shown on tv in seconds. Is based around technology used for missle tracking.
For most sports there is a dilemma and discussion of how much technology should be used, football is one sport that the argument comes up again and again but nothing happen. But US football seemed to emabrace it then pull away from it so its hard really to strike balances between letting games flow and utilizing whats available to assist in correct decisions.
An article
Here on hawkeye with a picture as example when on tv though the ball actully moves.