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Distributions cohérentes de primitives pour le rendu expressif de scènes animées et le rendu en demi-tons

David Vanderhaeghe 1 
1 ARTIS - Acquisition, representation and transformations for image synthesis
Inria Grenoble - Rhône-Alpes, LJK - Laboratoire Jean Kuntzmann, Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology
Abstract : This thesis deals with graphic primitives distributions in two different domains: expressive rendering and printing system. To distribute is to position objects into a space. We focus on two dimensional space distributions. Moreover, a distribution follow an importance function describing the density of objects locally wanted for each point of the considered space. The quality of the distribution is judged by the observation of the position of the object, using spectral analysis for instance. In the field of expressive rendering, we focus on distribution for animated stroke-based rendering. Stroke-based rendering is used to obtain images that mimic some natural medias like painting. In our approach, we obtain the animation by moving the stroke from one frame to the other. When we do that, we need to follow an input motion, a given importance function and to correctly represent the targeted style. We call temporal coherence the trade-off made between this three conflicting constraints. We propose a complete system for animated stroke-based rendering with several distribution algorithms following the input motion and the importance function, and also with control of the rendering style. For printing system, we propose a distribution method for dot of ink. The method produces perceptually pleasant distribution while staying sufficiently efficient to be implemented in printers available nowadays.
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Submitted on : Monday, June 6, 2011 - 3:28:36 PM
Last modification on : Friday, March 25, 2022 - 11:10:34 AM
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  • HAL Id : tel-00345353, version 2



David Vanderhaeghe. Distributions cohérentes de primitives pour le rendu expressif de scènes animées et le rendu en demi-tons. Interface homme-machine [cs.HC]. Université Joseph-Fourier - Grenoble I, 2008. Français. ⟨tel-00345353v2⟩



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