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Structuring interactive TV documents | Proceedings of the 2003 ACM symposium on Document engineering
Interactive video technology is meant to support user-interaction with video in scene objects associated with navigation in video segments and access to text-based metadata. Interactive TV is one of the most important applications of this area, which has required the development of standards, techniques and tools, such as MPEG-4 and MPEG-7, to create, to describe, to deliver and to present interactive content.In this scenario, the structure and organization of documents containing multimedia metadata play an important role. However, the Interactive TV documents structuring and organization has not been properly explored during the development of advanced Interactive TV services.This work presents a model to structure and to organize documents describing Interactive TV programs and its related media objects, as well as the links between them. This model gives support to represent contextual information, and makes possible to use relevant metadata information in order to implement advanced services like object-based searches, in- movie (scenes, frames, in-frame regions) navigation, and personalization. To demonstrate the functionalities of our model, we have developed an application which uses an Interactive TV program's documents descriptions to present information about in-frame video objects.