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Efficient model training for HMM-based person identification by gait | IEEE Conference Publication | IEEE Xplore

Efficient model training for HMM-based person identification by gait


Abstract:

In gait-based person identification, statistical methods such as hidden Markov models (HMMs) have been proved to be effective. Their performance often degrades, however, ...Show More

Abstract:

In gait-based person identification, statistical methods such as hidden Markov models (HMMs) have been proved to be effective. Their performance often degrades, however, when the amount of training data for each walker is insufficient. In this paper, we propose walker adaptation and walker adaptive training, where the data from the other walkers are effectively utilized in the model training. In walker adaptation, maximum likelihood linear regression (MLLR) is used to transform the parameters of the walker-independent model to those of the target walker model. In walker adaptive training, we effectively exclude the inter-walker variability from the walker-independent model. In our evaluation, our methods improved the identification performance even when the amount of data was extremely small.
Date of Conference: 03-06 December 2012
Date Added to IEEE Xplore: 17 January 2013
ISBN Information:
Conference Location: Hollywood, CA, USA

References

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