Multi-player detection in soccer broadcast videos using a blob-guided particle swarm optimization method |
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Authors: | M Manafifard H Ebadi H Abrishami Moghaddam |
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Affiliation: | 1.Department of Photogrammetry and Remote Sensing,K.N. Toosi University of Technology,Tehran,Iran;2.Department of Electrical Engineering,K. N. Toosi University of Technology,Tehran,Iran |
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Abstract: | Soccer is the most popular sport around the world, and automatic processing of soccer images is a precious alternative to the manual solutions regarding the explosive growth of soccer videos. A new multi-player detection algorithm in far view frames as an initial step to a wide range of applications, such as player tracking, is addressed in this paper. In the proposed detector, a two-step blob detection (grass-based blob detection followed by an edge-based blob detection) is combined with an efficient search mechanism based on particle swarm optimization (PSO) by assigning sub-swarms to each detected blob. Then, a sub-swarm is initialized and tripled to search for three models corresponding to two teams and the referee. Therefore, the most player-like regions in detected blobs are simultaneously searched by all sub-swarms flying through the solution space, thus expanding the scope of single player detection to multi-player detection. Experimental results demonstrate the efficiency and robustness of the algorithm. |
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