TY - GEN
T1 - Human action recognition using continuous hmms and hog/hof silhouette representation
AU - Khedher, Mohamed Ibn
AU - El-Yacoubi, Mounim A.
AU - Dorizzi, Bernadette
PY - 2012/6/18
Y1 - 2012/6/18
N2 - This paper presents an alternative to the mainstream approach of STIP-based SVM recognition for human recognition. First, it studies whether or not whole silhouette representation by Histogram-of-Oriented- Gradients (HOG) or Histogram-of-Optical-Flow (HOF) descriptors is more discriminated when compared to sparse spatio-temporal interest points (STIPs). Second, it investigates whether explicitly modeling the temporal order of features using continuous HMMs outperforms the standard Bag-of-Words (BoW) representation that overlooks such an order. When both whole silhouette representation and temporal order modeling are combined, a significant improvement is shown on the Weizmann database over STIP-based SVM recognition.
AB - This paper presents an alternative to the mainstream approach of STIP-based SVM recognition for human recognition. First, it studies whether or not whole silhouette representation by Histogram-of-Oriented- Gradients (HOG) or Histogram-of-Optical-Flow (HOF) descriptors is more discriminated when compared to sparse spatio-temporal interest points (STIPs). Second, it investigates whether explicitly modeling the temporal order of features using continuous HMMs outperforms the standard Bag-of-Words (BoW) representation that overlooks such an order. When both whole silhouette representation and temporal order modeling are combined, a significant improvement is shown on the Weizmann database over STIP-based SVM recognition.
KW - Action recognition
KW - Feature discriminative power
KW - Temporal correlation
M3 - Conference contribution
AN - SCOPUS:84862187142
SN - 9789898425980
T3 - ICPRAM 2012 - Proceedings of the 1st International Conference on Pattern Recognition Applications and Methods
SP - 503
EP - 508
BT - ICPRAM 2012 - Proceedings of the 1st International Conference on Pattern Recognition Applications and Methods
T2 - 1st International Conference on Pattern Recognition Applications and Methods, ICPRAM 2012
Y2 - 6 February 2012 through 8 February 2012
ER -