We introduce a novel parameterization of facial expressions by usingelastic surface model. The elastic surface model has been used as a deformationtool especially for nonrigid organic objects. The parameter ofexpressions is either retrieved from existing articulated face models or obtainedindirectly by manipulating facial muscles. The obtained parametercan be applied on target face models dissimilar to the source model to createnovel expressions. Due to the limited number of control points, the animationdata created using the parameterization require less storage size withoutaffecting the range of deformation it provides. The proposed method can beutilized in many ways: (1) creating a novel facial expression from scratch, (2)parameterizing existing articulation data, (3) parameterizing indirectly by muscleconstruction, and (4) providing a new animation data format which requires lessstorage.
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