Caricature Synthesis and Exaggeration Based on Facial Features and their Relationship

The difference between shape exaggeration and relationship exaggeration of face features has been seldom considered in existing algorithms of caricature generation.A new method for caricature exaggeration and synthesis is proposed in the paper,covering shape exaggeration,relationship exaggeration and global synthesis.Rather than relying on a large training set of caricature face pairs,the shape exaggeration step is based only on several caricature examples to capture the shape exaggeration.T-Shape rule is introduced in the relationship exaggeration step,to describe the relative relationship between the facial elements in an intuitive manner.A description method is introduced in the synthesis step,in characterizing the facial features in a proportion form.Besides,an anonymous questionnaire survey has been undertaken to evaluate the generated caricature with this method.The results show the effectiveness of the method.