WANG Chuan-xu, LIU Yun, LI Wan-qing. Research of Unsupervised Posture Modeling and Action Recognition Based on Spatial-Temporal Interesting Points[J]. Acta Electronica Sinica, 2011, 39(8): 1751-1756.
WANG Chuan-xu, LIU Yun, LI Wan-qing. Research of Unsupervised Posture Modeling and Action Recognition Based on Spatial-Temporal Interesting Points[J]. Acta Electronica Sinica, 2011, 39(8): 1751-1756.DOI:
Posture modeling is critical for action description and recognition
a posture modeling and action recognition method is proposed in this paper.Spatial Temporal Interesting Points (STIPs) are extracted from learning samples
in fact
one posture consists of a set of STIPs;a unsupervised clustering method is adopted to classify salient postures from these posture samples
then a GMM model is established for each clustering result;transitional probability among salient postures are calculated
and a Visible state Markov Model(VMM) is learnt to describe various actions.Bi
-
gram method is put forward for action recognition
Extensive experiments are conducted and the results prove its robustness and validity.