PPT Slide
To exploit visible differences between the players and background “objects”, we propose template tracking.
It is extremely difficult to build an accurate model of a player, especially at low resolution.
We defined a set of templates , {Kj,j=1..14}, which represent basic appearances of the player:
Feature vectors G and F are derived from background image and current frame at estimated player position (ROI of 16x16 pixels). Vector H is calculated as mean average of past vectors F obtained at true player positions.