Toward accurate dynamic time warping in linear time and space
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In this paper we address the problem of temporal alignment applied to capture communicative gestures conveying different styles. We propose a representation space that may be considered as robust to the spatial variability induced by style. By extending a multilevel dynamic time warping algorithm, we show how this extension can fulfil the goals of time correspondence between gesture sequences while preventing jerkiness introduced by standard time warping methods. Copyright © 2006 John Wiley & Sons, Ltd.