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Abstract Decomposition of Human Motion into Dynamics Based Primitives with Application to Drawing Tasks ⋆

By Domitilla Del Vecchio A, Richard M. Murray A and Pietro Perona A


Using tools from dynamical systems and systems identification we develop a framework for the study of primitives for human motion, which we refer to as movemes. The objective is understanding human motion by decomposing it into a sequence of elementary building blocks that belong to a known alphabet of dynamical systems. We develop a segmentation and classification algorithm in order to reduce a complex activity into the sequence of movemes that have generated it. We test our ideas on data sampled from five human subjects who were drawing figures using a computer mouse. Our experiments show that we are able to distinguish between movemes and recognize them even when they take place in activities containing an unspecified number of movemes. Key words: Classification; parameter estimation; learning theory; data acquisition; computer experiments; signal segmentation

Year: 2009
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