State Filtering and Change Detection Using TBM Conflict Application to Human Action Recognition in Athletics Videos

Authors:
E. . Ramasso;M. Rombaut;D. . Pellerin
Affiliations:
Grenoble Image Parole Signal Autom. Lab., Grenoble;-;-
Venue:
IEEE Transactions on Circuits and Systems for Video Technology
Year:
2007

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Abstract

In this paper, we propose a tool called temporal credal filter with conflict-based model change (TCF-CMC) to smooth belief functions online in transferable belief model (TBM) framework. The TCF-CMC takes temporal aspects of belief functions into account and relies on conflict information explicitly modelled in TBM when combining beliefs. TBM fusion, in addition to uncertainty, takes into account imprecision and conflict inherent to features. The TCF-CMC takes part in a wider system for human action recognition in videos. The whole system is tested on 62 videos (11000 images) with moving camera and real conditions where the TCF-CMC improves running, jumping, falling and standing-up actions recognition in high jump, pole vault, long jump and triple jump activities. The TCF-CMC is also compared to hidden Markov models. Lastly, a TBM rules-based modelling is compared to Gaussian mixture.