Evolving facial expressions

The interactive evolution technique, a variation of genetic algorithms, is used in synthesizing various facial expressions from an input 2D image of a face. Smooth 2D transformations were used to compensate for changes in facial expressions. The large space of the transformations or facial expressions is searched through by interactive evolution, without tedious user specifications, design efforts, or knowledge of algorithmic details. Brief reviews on uses of genetic algorithms and interactive evolution in computer graphics are also included.