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Flattening 3D objects using silhouettes
Domingo Martín, Jean-Daniel Fekete, J. C. Torres.
Computer Graphics Forum (EG'02), Vol. 21, No. 3,
2002. [BibTeX]
Observer Dependent Deformations In Illustration
Author(s): Domingo Martín, S. García, J. C. Torres.
Proceedings: 1st International Symposium on Non-Photorealistic Animation and Rendering (NPAR'00), pp. 75--82, Annecy, France, June 5-7,
2000.
[BibTeX] 
Abstract:
Illustration has some visual characteristics that are very interesting yet also very difficult to obtain with a computer. Whilst the simulation of the tools used for painting and drawing is successful enough, expressive capabilities have not been developed to the same extent. The deformations of objects and space is a major element in the expressiveness of illustration. The use of Hierarchical Extended Non-Linear Transformations is presented as a powerful tool for obtaining such kind of expressivity.