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Advanced delivery of sensitive multimedia content for better serving user expectations in Virtual Collaboration applications

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Abstract

A major challenge when accessing protected multimedia content in heterogeneous usage environments is the ability to provide acceptable levels of quality of experience to all involving users. Additionally, different levels of protection should be possible to be addressed when manipulating the content towards the quality of experience maximization. This paper describes the use of a context-aware and Digital Rights Management (DRM)-enabled content adaptation platform towards meeting these challenges. The platform was conceived to deliver advanced content adaptation within different application scenarios, among which Virtual Collaboration (VC) was central. Descriptions of use cases implemented by the platform in heterogeneous VC environments are provided. Conducted experiments have highlighted the benefits to users when compared to an operation without the platform. Results of different adaptations suitable to sensed context conditions are also provided and analyzed. A brief description of the platform functionality is included together with pointers to additional information.

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Abbreviations

AA:

Adaptation authorizer

ADE:

Adaptation decision engine

AE:

Adaptation engine

AES:

Adaptation engine suite

AQoS:

Adaptation quality of Service

CAO:

Context aware ontology

CS:

Classification scheme

CxP:

Context provider

DIA:

Digital item adaptation

DL:

Description logic

DRM:

Digital rights management

IROI:

Interactive region of interest

GPS:

Global positioning system

MDS:

Multimedia description schemes

MOS:

Mean opinion score

MULTICAO:

Multimedia context aware ontology

OWL:

Web ontology language

REL:

Rights expression language

ROI:

Region of interest

SNR:

Signal-to-noise ratio

SWRL:

Semantic web rule language

UED:

Usage environment description

VC:

Virtual collaboration

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Acknowledgments

The work presented was partially developed within VISNET II, a European Network of Excellence (http://www.visnet-noe.org), funded under the European Commission IST FP6 programme.

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Authors and Affiliations

  1. INESC Porto, Rua Dr. Roberto Frias 378, 4200-465, Porto, Portugal

    Maria Teresa Andrade & Vitor Barbosa

  2. I-Lab Multimedia Communications Research, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, GU2 7XH, Surrey, UK

    Safak Dogan, Hemantha Kodikara Arachchi & Ahmet M. Kondoz

  3. Universitat Politecnica de Catalunya, Departament d’Arquitectura de Computadors, Campus Nord, Modul D6, Jordi Girona 1-3, 08034, Barcelona, Spain

    Anna Carreras & Jaime Delgado

  4. Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465, Porto, Portugal

    Maria Teresa Andrade

Authors
  1. Maria Teresa Andrade
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  2. Safak Dogan
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  3. Anna Carreras
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  4. Vitor Barbosa
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  5. Hemantha Kodikara Arachchi
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  6. Jaime Delgado
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  7. Ahmet M. Kondoz
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Correspondence to Maria Teresa Andrade.

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Andrade, M.T., Dogan, S., Carreras, A. et al. Advanced delivery of sensitive multimedia content for better serving user expectations in Virtual Collaboration applications. Multimed Tools Appl 58, 633–661 (2012). https://doi.org/10.1007/s11042-011-0749-6

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