Simulating wrinkles and skin aging

We describe a methodology and framework to simulate facial animation and sk in aging, taking into account skin texture and wrinkle dynamics. We split t he facial simulation process into facial surface deformation and wrinkle ge neration. The first of these is based on a three-layered facial structure ( muscle, connective tissue, and skin layers). The layer of B-spline patch mu scles provides the relevant contraction forces to enable the skin deformati on, while the layer of connective tissues constrains the range of skin move ment. The wrinkle generation uses a synthetic texture, and wrinkles are for med dynamically, thanks to a linear plastic model. The wrinkle generation a nd rendering can be incorporated into real-time facial animation systems.