Abstract
Expressions play an important role in human communication. Human expressions have long been studied in the fields of psychology and anthropology, but now with CG and CAD programs that can be used on personal computers, the subject is being pursued from an engineering perspective in such fields as medicine and CG as researchers examine the work of analyzing and recreating human expressions. The purpose of this study is the automatic generation of realistic expressions using CG. Numerical analyses in this work make it possible to quantify human expressions, for example, a “10% smile”. In this paper, as the first stage of the purpose, we report our work of generating laughing faces based on a method that utilizes FEM and the information of facial bone structures and muscle movements. From this work, we were able to create laughing faces as deformations of a finite element model of a face shape made of silicon rubber.
