Patent ID: 6816185
Filing Date: 2004-11-09
Classification: A63B

Abstract:
A system for judging boundary lines on a court in sporting games for determining whether a ball in play bounces in or out of court; said system comprising:at least one camera positioned proximate to the court independent of the orientation of said boundary lines to capture movement of said ball; a frame grabber associated with each of said at least one cameras to process said movement of said ball as captured frames; an image processing system configured to receive said captured frame from said frame grabbers and to process said captured frame as images to determine whether said ball is in or out of court and to generate a signal if said ball is out of court, said image processing system comprising a calibration sub-system and a recognition sub-system, wherein said calibration sub-system comprises a line recognition module, an image segmentation and region grouping module, a court line and region registration module, a supervised ball recognition module and a look-up-table module; and an output device coupled to said image processing system to receive said signal.