| Realistic 3D face reconstruction is a hotspot in the field of computer graphics. In this paper, it included 3D mesh simplification and local organ characteristics position on the craniofacial face, eye model and the motion of eye and hair generation in the realistic face modeling system based on grid model. These has been important theoretical and practical value.The main process:(1) In order to reduce the number of mesh vertices and triangle surfaces, we may handle with head models in mesh simplification based on fold. It will fastly position the eye area in organ matching based on template.(2) A method of realistic eye simulation based on ball movement. It will respectively replace human eyes and eyelids with ball and parabola. Its movement was controlled by feature points on their models. To complete 3D eye modeling and movement controlling.(3) A algorithm of hair strand generation based on generalized cylinder is proposed. The scale is divided into several small squares, It will chose the growth points which was considered as hair root in the center of each small square. The generalized cylinder will complete the simulation of hair strand one by one to generate realistic hair model.(4) A modified algorithm of overall hair generation based on NURBS is proposed. It will simulate overall hair in NURBS parametric surface and control hair style by feature points on the surface. At last, the final rendering was completed by using the alpha map. After these steps, it will quickly generate realistic 3D hair.(5) Combined with the practical needs of realistic face reality, we develop 3D realistic face, eyes and hair modeling system by Visual C++6.0 and open source 3D graphics library for the virtual operation. This research is supported by National Natural Science Foundation of China(60736008). |
