Ball tracking in American football video using information of play initial and terminal points and each player's movement

Junji Kurano, Masaki Hayashi, Taiki Yamamoto, Kyoko Oshima, Masamoto Tanabiki, Yoshimitsu Aoki

Research output: Contribution to journalArticle

1 Citation (Scopus)


The ball trajectory carries a lot of information for tactics analysis in team sports, so we are interested in automatic ball tracking in American football video. While there arc many automatic ball tracking methods, because of holding the ball by one of players and heavy occlusions by the ball holder and other players, tracking ball is difficult in American Football video. Therefore, we calculate the play initial and terminal points using initial formation detection and the concentration degree of each player's direction. After that we connect the ball trajectory or the ball holder's between the play initial and terminal points. We decide which player is the actual ball holder using the team identification result, the distance from play terminal point, and the receiving approach degree by using the information of all players' movement.

Original languageEnglish
Pages (from-to)91-98
Number of pages8
JournalSeimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering
Issue number1
Publication statusPublished - 2015 Jan 1
Externally publishedYes



  • AdaBoost
  • Ball tracking
  • Dense optical flow
  • HOG
  • Sports video analysis

ASJC Scopus subject areas

  • Mechanical Engineering

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