Interactive Multi-camera Soccer Video Analysis System

Automatic sports video analysis is an active field of research, and accurate player & ball tracking is essential for soccer video analysis and visualization. However, the variations over frames and the scarceness of large-scale well-annotated datasets make it difficult to perform supervised learning using pre-trained models, especially for Multi-Camera Multi-Target Tracking (MCMT). In this paper, we introduce an end-to-end system for multi-camera soccer video analysis that makes heavy use of parallel processing for optimization of the processing workflow. The proposed thread-level parallelism speeds up our system by more than 15 times while maintaining the level of accuracy. The system tracks the trajectories of the ball and the players in a world coordinate system based on soccer videos captured by a set of synchronized cameras. Based on these trajectories, various player-, ball-, and team-related statistics are computed, and the resulting data and visualizations can be interactively explored by the user.