Construction of 3D facial feature models considering facial muscle movements using two photographs

摘要

A method for constructing facial images from arbitrary directions and expressions for use in multimedia communication applications is proposed. Both the geometric deformations and physical movements of the facial muscles are considered in this method, and enables the construction of realistic facial images in a simple way. Two orthogonal images of an expressionless face are acquired, and feature points are selected to construct a three dimensional polygon model to describe the shape of the human face. Elastic springs are placed on the model to express the deformations of facial components, and polygon vertices near the springs' dynamic points are displaced accordingly to construct changes in expressions naturally. Since these spring movements do not depend on a specific facial structure, the model could easily be adapted to any given person's face. The method was implemented on an inexpensive PC, and simulation results showed its effectiveness.