Rendering and Animating Expressive Caricatures (2010)
Type of ContentConference Contributions - Published
PublisherUniversity of Canterbury. Computer Science and Software Engineering
University of Canterbury. Human Interface Technology Laboratory
AuthorsObaid, M., Mukundan, R., Billinghurst, M.show all
We present a novel approach for generating stylized artistic rendering of caricatures from a given face image, with the ability to map any one of the main six expressions and control the degree of its expressiveness on the generated caricature. Our method achieves this by manipulating the facial appearance and expressivity of the caricature, using quadratic deformation model representations of facial expressions. A stroke-based nonphotorealistic rendering (NPR) engine is developed to generate the output caricature that appears to be a sketch of the original image. The NPR engine segments the defined rendering path and generates rectangular strokes that approximate each segment. The stroke properties are computed by applying geometric image moments on each segment. To enhance the overall appearance of the caricature, extra strokes are randomly positioned around the rendering path. The results show that from an input neutral facial image, expressive rendered caricatures are generated for the facial expressions neutral, smile, sad, fear, surprise, disgust, and anger. Our approach produces very expressive artistically rendered caricatures, and could lead to future research directions in further extending the method to produce pencil sketch rendering of images or rendering 3D characters to generate cartoon-like 3D characters.
CitationObaid, M., Mukundan, R., Billinghurst, M. (2010) Rendering and Animating Expressive Caricatures. Chengdu, China: 2010 3rd IEEE International Conference on Computer Science and Information Technology (ICCSIT), 9-11 July 2010. 401-406.
This citation is automatically generated and may be unreliable. Use as a guide only.
Keywordsexpressive caricatures; non-photorealistic rendering; caricature sketch rendering; facial caricature
ANZSRC Fields of Research08 - Information and Computing Sciences
08 - Information and Computing Sciences::0801 - Artificial Intelligence and Image Processing::080103 - Computer Graphics