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Green Image
Issue No. 06 - June (2011 vol. 17)
ISSN: 1077-2626
pp: 808-821
Lyndsey Clarke , Swansea University, Swansea
Min Chen , Swansea University, Swansea
Benjamin Mora , Swansea University, Swansea
Caricatures are a form of humorous visual art, usually created by skilled artists for the intention of amusement and entertainment. In this paper, we present a novel approach for automatic generation of digital caricatures from facial photographs, which capture artistic deformation styles from hand-drawn caricatures. We introduced a pseudo stress-strain model to encode the parameters of an artistic deformation style using “virtual” physical and material properties. We have also developed a software system for performing the caricaturistic deformation in 3D which eliminates the undesirable artifacts in 2D caricaturization. We employed a Multilevel Free-Form Deformation (MFFD) technique to optimize a 3D head model reconstructed from an input facial photograph, and for controlling the caricaturistic deformation. Our results demonstrated the effectiveness and usability of the proposed approach, which allows ordinary users to apply the captured and stored deformation styles to a variety of facial photographs.
Computer-generated imagery, caricaturization, caricature art, example-based deformation, pseudo stress-strain model, nonphotorealistic rendering, sketch-based modeling.

M. Chen, L. Clarke and B. Mora, "Automatic Generation of 3D Caricatures Based on Artistic Deformation Styles," in IEEE Transactions on Visualization & Computer Graphics, vol. 17, no. , pp. 808-821, 2010.
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