EG UK Theory and Practice of Computer Graphics 2011
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Browsing EG UK Theory and Practice of Computer Graphics 2011 by Subject "Categories and Subject Descriptors (according to ACM CCS): I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism-Animation"
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Item Dynamic Video Face Transformation Using Multilinear and Autoregressive Models(The Eurographics Association, 2011) Tiddeman, Bernard; Hunter, David; Perrett, David; Ian Grimstead and Hamish CarrIn this paper we present a prototype system for altering perceived attributes of faces in video sequences, such as the apparent age, sex or emotional state. The system uses multilinear models to decompose the parameters coding for each frame into separate pose and identity parameters. The multilinear model is learnt automatically from the training video data. Statistical models of group identity are then used to alter the identity parameters from one group to another (e.g. from male to female). An autoregressive model is learnt from the pose parameters, and this is applied to alter the dynamics. We have tested our system on a small dataset (for altering apparent gender) with encouraging preliminary results.