A method for data extraction from video sequences for automatic identification of football players based on their numbers

Authors:
Dariusz Frejlichowski
Affiliations:
West Pomeranian University of Technology, Szczecin, Faculty of Computer Science and Information Technology, Szczecin, Poland
Venue:
ICIAP'11 Proceedings of the 16th international conference on Image analysis and processing: Part I
Year:
2011

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Abstract

In the paper the first stage of the approach for automatic identification of football players is presented. It is based on the numbers placed on their shirts. The method works with video frames extracted during a television sport broadcast. The element of the system described in this paper is devoted to the localisation of the numbers and their extraction for future recognition. It is simple, yet efficient and it is based on the use of appropriate ranges in various colour spaces. Four colour spaces were experimentally evaluated for this purpose. Thanks to this, the ranges could be established for particular kits. Firstly, the part of an image with a shirt was localised, and later, within this area, a number was found.