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Visual Media Coding and Transmission by Ahmet Kondoz

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11.6 The Application Scenario for Context-based Adaptation of Governed Media Contents

(Reproduced by permission of ©2008 IIMC Ltd and ICT Mobile Summit.)

This section provides a brief description of the selected application scenario based on the Virtual Collaboration System (VCS), where adaptation of content to meet constraints as well as user preferences imposed by the usage context would be required to enhance the quality of the user experience. It includes a succinct textual description of the selected scenario as well as of the different contexts or the different conditions and characteristics of the usage environment that may occur during the consumption of such an application.

The scenario described in this section is meant to be used as an enabler for the definition of potential use cases for context-based adaptation issues discussed in this chapter. It thus provides the means for the identification and selection of useful contextual information, of participating entities processing that contextual information and associated functionalities, as well as of the interactions therein.

VCS is a system through which remotely-located users are able to meet in a virtual environment created by the supported AV technology. Such an environment requires the provision of a sensation of all the remotely-located users' presence in the same room. In a typical virtual collaboration scenario, as shown in Figure 11.26, there are a number of fixed collaboration units (e.g. communication terminals, ...

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