Automatic camera selection for activity monitoring in a multi-camera system for tennis
Kelly, Philip and Ó Conaire, Ciarán and Kim, Chanyul and O'Connor, Noel E. (2009) Automatic camera selection for activity monitoring in a multi-camera system for tennis. In: ICDSC 2009 - Third ACM/IEEE International Conference on Distributed Smart Cameras, 30 August - 2 September 2009, Como, Italy. (In Press)
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In professional tennis training matches, the coach needs to be able to view play from the most appropriate angle in order to monitor players' activities. In this paper, we describe and evaluate a system for automatic camera selection from a network of synchronised cameras within a tennis sporting arena. This work combines synchronised video streams from multiple cameras into a single summary video suitable for critical review by both tennis players and coaches. Using an overhead camera view, our system automatically determines the 2D tennis-court calibration resulting in a mapping that relates a player's position in the overhead camera to their position and size in another camera view in the network. This allows the system to determine the appearance of a player in each of the other cameras and thereby choose the best view for each player via a novel technique. The video summaries are evaluated in end-user studies and shown to provide an efficient means of multi-stream visualisation for tennis player activity monitoring.
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