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An approach to checking consistency in multimedia synchronization constraints

The paper proposes a new method for analyzing multimedia synchronization constraints based on the constraint graph and classification, which is essential in developing efficient support tools for constraint based authoring systems. We specify the temporal relations between multimedia objects, and use a directed graph to represent the constraints among the objects in a multimedia scenario. We then analyze synchronization constraints based on graph theory, solving multiple problems in a unified theoretical framework: completeness and/or consistency checking, constraint relaxation and automatic temporal layout generation. We also discuss the effects of user interactive authoring. Compared to the other methods, it is simpler, more efficient, and easier to implement.