Reference TypeConference Proceedings
Citation KeyNascimentoQuRoReMePe:2011:CoIl2D
Author1 Nascimento, Renata
2 Queiroz, Fabiane
3 Rocha, Allan
4 Ren, Tsang Ing
5 Mello, Vinicius
6 Peixoto, Adelailson
Affiliation1 Department of Mathematics, PUC–Rio, Rio de Janeiro, Brazil
2 Department of Computer Science, UFPE, Pernambuco, Brazil
3 Department of Computer Science, PUC–Rio, Rio de Janeiro, Brazil
4 Department of Computer Science, UFPE, Pernambuco, Brazil
5 Institute of Mathematics, UFBA, Salvador, Brazil
6 Institute of Mathematics, UFAL, Maceió, Brazil
TitleColorization and Illumination of 2D Animations Based on a Region-tree Representation
Conference NameConference on Graphics, Patterns and Images, 24 (SIBGRAPI)
EditorLewiner, Thomas
Torres, Ricardo
Book TitleProceedings
DateAug. 28 - 31, 2011
Publisher CityLos Alamitos
PublisherIEEE Computer Society
Conference LocationMaceió
Keywordsdrawing, region-tree, illumination, colorization,animation.
AbstractColorization and illumination are key processes for creating animated cartoons. Computer assisted methods have been incorporated in animation/illustration systems to reduce the artists' effort. This paper presents a new strategy for illumination and colorization of 2D drawings based on a region-tree. Starting from a hand-drawn cartoon, it extracts geometric and topological information and builds a tree structure, ensuring independence among parts of the drawing, such as curves and regions. Based on this structure and its attributes, a colorization method that propagates through consecutive frames of animation is proposed, together with an interpolation method that accurately computes a normal mapping for the illumination process. Different operators on curve and region attributes can be applied independently, obtaining different rendering effects.
Tertiary TypeFull Paper
FormatDVD, On-line.
Size6957 KiB
Number of Files1
Target File86798.pdf
Last Update2011:
Metadata Last Update2020: administrator {D 2011}
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History2011-07-23 15:36:12 :: -> administrator :: 2011
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