Shape-Based Human Activity Recognition Using Independent Component Analysis and Hidden Markov Model

Authors:
Md. Zia Uddin;J. J. Lee;T. -S. Kim
Affiliations:
Department of Biomedical Engineering, Kyung Hee University, Republic of South Korea 446-701;Department of Biomedical Engineering, Kyung Hee University, Republic of South Korea 446-701;Department of Biomedical Engineering, Kyung Hee University, Republic of South Korea 446-701
Venue:
IEA/AIE '08 Proceedings of the 21st international conference on Industrial, Engineering and Other Applications of Applied Intelligent Systems: New Frontiers in Applied Artificial Intelligence
Year:
2008

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Abstract

In this paper, a novel human activity recognition method is proposed which utilizes independent components of activity shape information from image sequences and Hidden Markov Model (HMM) for recognition. Activities are represented by feature vectors from Independent Component Analysis (ICA) on video images and based on these features, recognition is achieved by trained HMMs of activities. Our recognition performance has been compared to the conventional method where Principle Component Analysis (PCA) is typically used to derive activity shape features. Our results show that superior recognition is achieved with our proposed method especially for activities (e.g., skipping) that cannot be easily recognized by the conventional method.