Physics-Based 3D Position Analysis of a Soccer Ball from Monocular Image Sequences

  • Authors:

  • Tacone Kim;Yongduek Seo;Ki-Sang Hong

  • Affiliations:

  • -;-;-

  • Venue:
  • ICCV '98 Proceedings of the Sixth International Conference on Computer Vision
  • Year:
  • 1998

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Abstract

In this paper, we propose a method for locating 3D position of a soccor ball from monocular image sequence of soccor games. Toward this goal, we adopted ground-model-to-image transformation together with physics-based approach that a ball follows the parabolic trajectory in the air. By using the transformation the heights of a ball can be easily calculated using simple triangular geometric relations given the start and the end position of the ball on the ground. Here the heights of a ball are determined in terms of a player's height. Even if the end position of a ball is not given on the ground due to kicking or heading of a falling ball before it touches the ground, the most probable trajectory can be determined by searching based on the physical fact taht the ball follows a parabolic trajectory in the air. We have tested and experimented with a real image sequence the results of which seem promising.