Analysis and Synthesis of Expressive Theatrical Movements

Pamela Carreno-Medrano 1
1 EXPRESSION - Expressiveness in Human Centered Data/Media
UBS - Université de Bretagne Sud, IRISA-D6 - MEDIA ET INTERACTIONS
Abstract : This thesis addresses the analysis and generation of expressive movements for virtual human character. Based on previous results from three different research areas (perception of emotions and biological motion, automatic recognition of affect and computer character animation), a low-dimensional motion representation is proposed. This representation consists of the spatio-temporal trajectories of end-effectors (i.e., head, hands and feet), and pelvis. We have argued that this representation is both suitable and sufficient for characterizing the underlying expressive content in human motion, and for controlling the generation of expressive whole-body movements. In order to prove these claims, this thesis proposes: (i) A new motion capture database inspired by physical theory, which contains three categories of motion (locomotion, theatrical and improvised movements), has been built for several actors; (ii) An automatic classification framework has been designed to qualitatively and quantitatively assess the amount of emotion contained in the data. It has been shown that the proposed low-dimensional representation preserves most of the motion cues salient to the expression of affect and emotions; (iii) A motion generation system has been implemented, both for reconstructing whole-body movements from the low-dimensional representation, and for producing novel end-effector expressive trajectories. A quantitative and qualitative evaluation of the generated whole body motions shows that these motions are as expressive as the movements recorded from human actors.
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Theses
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  • HAL Id : tel-01490785, version 1

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Pamela Carreno-Medrano. Analysis and Synthesis of Expressive Theatrical Movements . Computer science. Université Bretagne Sud, 2016. English. ⟨tel-01490785⟩

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