Keeping the score in a ping-pong game is oftentimes causing the flow of the game to be delayed. But through digital signal analysis, a real-time game scoring can be achieved by tracking the ball movement. So all the players need to do is to just keep on playing without the need to monitor their score or whose turn to serve will be.
This is made possible using a Sony digital camera which implements green pixel detection and the black backdrop in the setup provides more accurate color in the video feed as it eliminates other colors being detected. The score is displayed on a large monitor and to avoid players for looking constantly onto the display, an audio feedback is used to track the status of the game.
The end-result is an accurate pointing system as the design involves careful calibration from the hardware design up to the logical operation of the system.