An optimized MPEG-21 BSDL framework for the adaptation of scalable bitstreams
Journal of Visual Communication and Image Representation
Optimal multilayer adaptation of SVC video over heterogeneous environments
Advances in Multimedia
DCAF: An MPEG-21 Dynamic Content Adaptation Framework
Multimedia Tools and Applications
SVC adaptation: Standard tools and supporting methods
Image Communication
An integrated approach to summarization and adaptation using H.264/MPEG-4 SVC
Image Communication
A novel model of adaptation decision-taking engine in multimedia adaptation
Journal of Network and Computer Applications
Scalable video streaming with fine-grain adaptive forward error correction
IEEE Transactions on Circuits and Systems for Video Technology
Modeling of a QoS Matching and Optimization Function for Multimedia Services in the NGN
MMNS 2009 Proceedings of the 12th IFIP/IEEE International Conference on Management of Multimedia and Mobile Networks and Services: Wired-Wireless Multimedia Networks and Services Management
CAIN-21: An Extensible and Metadata-Driven Multimedia Adaptation Engine in the MPEG-21 Framework
SAMT '09 Proceedings of the 4th International Conference on Semantic and Digital Media Technologies: Semantic Multimedia
Multimedia Tools and Applications
ACIVS'07 Proceedings of the 9th international conference on Advanced concepts for intelligent vision systems
Use cases of scalable video based summarization and adaptation within MPEG-21 DIA
SAMT'07 Proceedings of the semantic and digital media technologies 2nd international conference on Semantic Multimedia
DELOS'07 Proceedings of the 1st international conference on Digital libraries: research and development
Quality-assured and sociality-enriched multimedia mobile mashup
EURASIP Journal on Wireless Communications and Networking - Special issue on multimedia communications over next generation wireless networks
Content adaptation on mobile devices using MPEG-21
Journal of Mobile Multimedia
A non-intrusive estimation for high-quality Internet TV services
Multimedia Tools and Applications
EUC'05 Proceedings of the 2005 international conference on Embedded and Ubiquitous Computing
Bounded non-deterministic planning for multimedia adaptation
Applied Intelligence
Implementing the MPEG-21 adaptation quality of service in dynamic environments
ICCSA'06 Proceedings of the 2006 international conference on Computational Science and Its Applications - Volume Part IV
Using Description Logics for the Provision of Context-Driven Content Adaptation Services
International Journal of Systems and Service-Oriented Engineering
Semantic media decision taking using N3logic
Multimedia Tools and Applications
Scalable multimedia delivery with QoS management in pervasive computing environment
The Journal of Supercomputing
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In order to cater to the diversity of terminals and networks, efficient, and flexible adaptation of multimedia content in the delivery path to end consumers is required. To this end, it is necessary to associate the content with metadata that provides the relationship between feasible adaptation choices and various media characteristics obtained as a function of these choices. Furthermore, adaptation is driven by specification of terminal, network, user preference or rights based constraints on media characteristics that are to be satisfied by the adaptation process. Using the metadata and the constraint specification, an adaptation engine can take an appropriate decision for adaptation, efficiently and flexibly. MPEG-21 Part 7 entitled Digital Item Adaptation standardizes among other things the metadata and constraint specifications that act as interfaces to the decision-taking component of an adaptation engine. This paper presents the concepts behind these tools in the standard, shows universal methods based on pattern search to process the information in the tools to make decisions, and presents some adaptation use cases where these tools can be used.