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Foot Contact Detection for Sprint Training

  • Robert Harle
  • Jonathan Cameron
  • Joan Lasenby
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6468)

Abstract

We introduce a new algorithm to automatically identify the time and pixel location of foot contact events in high speed video of sprinters. We use this information to autonomously synchronise and overlay multiple recorded performances to provide feedback to athletes and coaches during their training sessions.

The algorithm exploits the variation in speed of different parts of the body during sprinting. We use an array of foreground accumulators to identify short-term static pixels and a temporal analysis of the associated static regions to identify foot contacts.

We evaluated the technique using 13 videos of three sprinters. It successfully identifed 55 of the 56 contacts, with a mean localisation error of 1.39±1.05 pixels. Some videos were also seen to produce additional, spurious contacts. We present heuristics to help identify the true contacts.

Keywords

Background Subtraction High Speed Video Foreground Pixel Contact Detection Sprint Training 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Robert Harle
    • 1
  • Jonathan Cameron
    • 1
  • Joan Lasenby
    • 1
  1. 1.University of CambridgeUK

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