Method and system for producing 3D facial animation

A system for producing a 3D facial animation using a single facial video stream, comprising:

• a representative joint producing unit for producing a representative joint focused on a major expression producing element in a 3D standard facial model;
• a feature-point model producing unit for producing a statistical feature-point model of various facial expressions of different people in the 3D standard facial model where the representative joint is produced;
• a feature-point tracking unit for moving and changing each feature-point of the statistical feature-point model by tracking a change in facial expressions of the video stream;
• a represent joint transformation coefficient calculating unit for calculating a transformation coefficient of the representative joint corresponding to a variation of the feature-point of the 3D standard facial model;
• and
• a representative joint transforming unit for producing a 3D facial information by applying the calculated transformation coefficient to the representative joint to be transformed.