Reproduce “TrackNet: A Deep Learning Network for Tracking High-speed and Tiny Objects in Sports Applications” on OpenResearch

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About this paper

Yu-Chuan Huang, I-No Liao, Ching-Hsuan Chen, Tsì-Uí İk, Wen-Chih Peng

TrackNet, a deep learning network, precisely tracks high-speed and tiny objects like tennis and badminton balls from broadcast videos. The network achieves 98.2% F1-measure for tennis and 68.7% for badminton by leveraging multi-frame input to learn dynamic trajectory patterns.

Key insights

  • Explicitly incorporating temporal information through multi-frame input significantly improves tracking accuracy for high-speed, tiny objects, outperforming both single-frame deep learning and conventional methods.
  • Deep learning can effectively infer and localize objects even when they are severely blurry, produce afterimages, or are partially occluded, by leveraging motion context and trajectory patterns.
  • The TrackNet framework is adaptable to various sports involving high-speed, tiny objects, although performance can vary depending on the extreme characteristics (e.g., speed) of the sport.

Summary by alphaXiv.

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