Dickinson, Patrick and Hunter, Andrew (2006) Body region labelling for action recognition. In: IASTED International Conference on Vizualization, Imaging and Image Processing, 28-30 August 2006, Palma de Mallorca, Spain.
|Item Type:||Conference or Workshop Item (Paper)|
|Divisions:||College of Science > School of Computer Science|
|Abstract:||We present a novel method for automatically labelling the head, torso, and legs of a human body tracked through a video sequence. An appearance-based body model is constructed by dividing the initial silhouette into a series of spatial slices, and building a colour distribution histogram for each. In subsequent frames a labelling hypothesis is constructed for each new silhouette by matching against these distributions, and used to identify each body region under a range of poses. We use the body model to extract feature points, which we use as the basis for an action recognition scheme. Actions are represented by a vector of the head and torso positions, sampled over the duration of an action. Manually labelled sequences provide a training set comprising sitting, bending, squatting, and lying actions, viewed from various angles. We use nearest-neighbour matching to identify actions presented in test sequences. Our results show that our method is effective, achieving a high recognition rate.|
|Date Deposited:||01 Sep 2006|
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