Multi-view multi-stance gait identification

M Hu, Y Wang, Z Zhang, D Zhang - 2011 18th IEEE …, 2011 - ieeexplore.ieee.org
M Hu, Y Wang, Z Zhang, D Zhang
2011 18th IEEE International Conference on Image Processing, 2011ieeexplore.ieee.org
View transformation in gait analysis has attracted more and more attentions recently.
However, most of the existing methods are based on the entire gait dynamics, such as Gait
Energy Image (GEI). And the distinctive characteristics of different walking phases are
neglected. This paper proposes a multi-view multi-stance gait identification method using
unified multi-view population Hidden Markov Models (pHMM-s), in which all the models
share the same transition probabilities. Hence, the gait dynamics in each view can be …
View transformation in gait analysis has attracted more and more attentions recently. However, most of the existing methods are based on the entire gait dynamics, such as Gait Energy Image (GEI). And the distinctive characteristics of different walking phases are neglected. This paper proposes a multi-view multi-stance gait identification method using unified multi-view population Hidden Markov Models (pHMM-s), in which all the models share the same transition probabilities. Hence, the gait dynamics in each view can be normalized into fixed-length stances by Viterbi decoding. To optimize the view-independent and stance-independent identity vector, a multi-linear projection model is learned from tensor decomposition. The advantage of using tensor is that different types of information are integrated in the final optimal solution. Extensive experiments show that our algorithm achieves promising performances of multi-view gait identification even with incomplete gait cycles.
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