Rodrigo Assaf,  José Hiroki Saito. 

Facial animation has been widely used in many areas of applications, presenting high levels of details and technology. However, its implementation still demands lots of hard work from the producer team. Aiming at the adaptation of a stereoscopic system to a financial low cost facial animation system, this research is based on facial control points on a human face, which is 3D modeled using the box modeling technique. The 3D virtual face is used to apply an ending result of a facial expression, or lip sync, obtained from the methods of stereoscopy, association and interpolation.

http://www.lbd.dcc.ufmg.br/colecoes/sbgames/2006/014.pdf

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