Research And Implementation On 2D Facial Expression Animation

With the diversification of people's life pursuit, 2D facial expression animation technology has gradually penetrated into people's daily life, especially in film and television production, computer animation and medical cosmetic image simulation is widely used. small rabbit Judy and fox Nick vivid cartoon faces captured a large number of fans in "Crazy Town animal". Simulate shaping of effect picture for customers by computer modeling.Facial expression animation techniques include the collection of training samples, feature points location, face mesh generation and human face deformation and other key technologies. For a frontal face image, first of all, need for face feature point labeling, mainly marking in the face of some key features of site, then establish triangular mesh according to the marked points, finally, realize the animation with deformation algorithm.The on the basis of the analysis of the shortcomings of the classical ASM algorithm, the establishment of local gray model is improved. Through the analysis to build the advantages and disadvantages of the three methods of Delaunay triangulation, the equinox insertion method is improved, and combine conquer method to become a kind of new method. Combine the advantages of the two methods to improve the efficiency of the algorithm, and combine the deformation algorithm based on Delaunay triangulation and the MPEG-4 standard to realize the transformation of different facial expressions. Finally, experiments on the frontal images show that the improved method can transform the natural and smooth facial expressions.