Gestion du recouvrement spatial dans les documents multimédias. Approche et évaluation
Loading...
Date
2008
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Dans le domaine de l'édition et de la présentation des documents multimédias interactifs, beaucoup de travaux de recherche sont consacrés aux problèmes de l'organisation temporelle et spatiale des objets qui composent un document multimédia. Toutefois, le problème du recouvrement spatial, conséquence directe des spécifications temporelles et spatiales, reste très peu considéré dans ce contexte. Les mécanismes d'analyses mis en oeuvre dans les modèles temporels et spatiaux se limitent à traiter les incohérences générées par la mise en relation temporelle et spatiale des objets. Actuellement, l'auteur se retrouve contraint d'effectuer des vérifications répétitives afin de lever les recouvrements. Dans cet article, nous proposons une approche basée sur les contraintes disjonctives pour la modélisation et la gestion du recouvrement spatial. Une évaluation des performances temporelles de l'approche est présentée en fin d'article.
Overlap constitues an important issue for the quality of service in authoring and presentation environment for interactive multimedia document. Indeed, as several elements of a multimedia document can occupy, at the same time, the same space of presentation and as the principle of WYSIWYG is inapplicable because of separation between the authoring and the presentation phases, this problem remains very frequent. Currently its management is generally left to the author. It is then constrained to carry out repetitive checks between the authorinf and the presentation phases in order to try to raise the possible overlaps. In this paper, we propose to automate the management of overlap in the authoring and presentation environment for interactive multimedia documents. The approach that we propose is integrated into the edition level and it is based on disjunctive constraints systems.
Overlap constitues an important issue for the quality of service in authoring and presentation environment for interactive multimedia document. Indeed, as several elements of a multimedia document can occupy, at the same time, the same space of presentation and as the principle of WYSIWYG is inapplicable because of separation between the authoring and the presentation phases, this problem remains very frequent. Currently its management is generally left to the author. It is then constrained to carry out repetitive checks between the authorinf and the presentation phases in order to try to raise the possible overlaps. In this paper, we propose to automate the management of overlap in the authoring and presentation environment for interactive multimedia documents. The approach that we propose is integrated into the edition level and it is based on disjunctive constraints systems.
Description
Keywords
recouvrement spatial, contrainte disjonctive, présentation multimédia, document multimédia, qualité de service