Mesh re-sampling algorithm is used to exact features and realize exact correspondence between the real 3D face and the 3D model.A model matching method based on direction genetic algorithm is proposed.In the algorithm

the directional information is introduced in local search process.Convergent speed and precision of the algorithm are improved.The experimental results show that this novel algorithm effectively realize precise align-ment to the prototypes

reduces optimization parameters

improves the precision and efficiency of model matching and shorten the matching time.