% Categories: DANAE
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@InProceedings{Timmerer2010_INTL-DPIF,
  author = {Timmerer, Christian and Hellwagner, Hermann},
  booktitle = {Proceedings of the 1st International Digital Preservation Interoperability Framework Symposium},
  title = {MPEG-21 digital items in research and practice},
  year = {2010},
  address = {New York, NY, USA},
  editor = {Chang, Wo},
  month = {apr},
  pages = {8:1-8:8},
  publisher = {ACM},
  series = {INTL-DPIF},
  abstract = {The aim of the MPEG‐21 standard, the so‐called Multimedia Framework, is to enable transparent and augmented use of multimedia resources across a wide range of networks, devices, user preferences, and communities, notably for trading (of bits). As such, it provides an important step in MPEG's standards evolution, i.e., the transaction of Digital Items among Users. This paper provides an overview of applications making use specifically of MPEG‐21 Digital Items and a more in‐depth presentation of a few selected applications in research and practice.},
  doi = {10.1145/2039263.2039271},
  keywords = {DANAE, ENTHRONE, MPEG-21, P2P-Next, UPnP, application, digital item, digital library, usage},
  language = {EN},
  location = {Dresden, Germany},
  pdf = {https://www.itec.aau.at/bib/files/a8-timmerer.pdf},
  slides = {https://www.itec.aau.at/bib/files/DPIF2010_v1.0.pdf},
  talkdate = {2010.04.22},
  talktype = {registered}
}
@InProceedings{Kofler2007,
  author = {Kofler, Ingo and Timmerer, Christian and Hutter, Andreas and Sanahuja, Francesc},
  booktitle = {Proceedings of {SPIE-IS\&T} Electronic Imaging Multimedia Computing and Networking Conference ({MMCN})},
  title = {Efficient MPEG-21-based Adaptation Decision-Taking for Scalable Multimedia Content},
  year = {2007},
  address = {Bellingham, Washington, USA},
  editor = {Zimmermann, Roger and Griwodz, Carsten},
  month = jan,
  pages = {65040J-1-65040J-8},
  publisher = {SPIE},
  series = {MMCN},
  abstract = {The MPEG-21 standard defines a framework for the interoperable delivery and consumption of multimedia content. Within this framework the adaptation of content plays a vital role in order to support a variety of terminals and to overcome the limitations of the heterogeneous access networks. In most cases the multimedia content can be adapted by applying different adaptation operations that result in certain characteristics of the content. Therefore, an instance within the framework has to decide which adaptation operations have to be performed to achieve a satisfactory result. This process is known as adaptation decision-taking and makes extensive use of metadata describing the possible adaptation operations, the usage environment of the consumer, and constraints concerning the adaptation. Based on this metadata a mathematical optimization problem can be formulated and its solution yields the optimal parameters for the adaptation operations. However, the metadata is represented in XML resulting in a verbose and inefficient encoding. In this paper, an architecture for an Adaptation Decision-Taking Engine (ADTE) is introduced. The ADTE operates both on XML metadata and on metadata encoded with MPEG's Binary Format for Metadata (BiM) enabling an efficient metadata processing by separating the problem extraction from the actual optimization step. Furthermore, several optimization algorithms which are suitable for scalable multimedia formats are reviewed and extended where it was appropriate},
  edition = {Volume 6504},
  isbn13 = {9780819466174},
  keywords = {Adaptation Decision-Taking, MPEG-21, Digital Item Adaptation, Binary Format for Metadata (BiM)},
  language = {EN},
  location = {San Jose, CA, USA},
  pdf = {https://www.itec.aau.at/bib/files/MMCN2007EfficientMPEG21basedAdaptationDecisionTaking.pdf},
  talkdate = {2007.02.01},
  talktype = {registered}
}
@InProceedings{Ransburg2006,
  author = {Ransburg, Michael and Cazoulat, Renaud and Pellan, Benoit and Concolato, Cyril and De Zutter, Saar and Poppe, Chris and Hutter, Andreas and Hellwagner, Hermann and Van de Walle, Rik},
  booktitle = {Proc. of the European Symposium on Mobile Media Delivery (EuMob 2006)},
  title = {Dynamic and Distributed Adaptation of Scalable Multimedia Content in a Context-Aware Environment},
  year = {2006},
  address = {Alghero, Italy},
  editor = {EuMob, 2006},
  month = sep,
  pages = {1-5},
  publisher = {--},
  abstract = {The seamless access to rich multimedia content on any device and over any network, usually known as Universal Multimedia Access, requires interoperable description tools and adaptation techniques to be developed. To address this, MPEG-21 introduces an adaptation framework, which provides several mechanisms for making adaptation decisions according to usage environment and adapting multimedia contents in a coding format independent way. This paper gives an overview of the European FP6 project DANAE which not only implements and extends the existing MPEG-21 adaptation mechanisms but also kicked off several new standardization activities in the area of dynamic and distributed adaptation and resource conversion. MPEG-21 DIP enables static stream selection which is a first step in a series of adaptations. The existing BSD-based adaptation mechanisms enable the efficient implementation of generic adaptation engines, which can be used for existing and future coding formats. These mechanisms were extended to enable dynamic and distributed adaptation. Alternatively to the BSD-based adaptation, resource conversion was investigated which does not rely on scalable media and allows adaptations at the scene level.},
  language = {EN},
  pdf = {https://www.itec.aau.at/bib/files/Dynamic and Distributed Adaptation of Scalable Multimedia Content in a Context-Aware Environment.pdf},
  talktype = {none}
}
@MastersThesis{Kofler2006,
  author = {Kofler, Ingo},
  school = {Klagenfurt University},
  title = {MPEG-21-based Adaptation Decision Taking in the Binary Encoded Metadata Domain},
  year = {2006},
  address = {Klagenfurt, Austria},
  month = feb,
  abstract = {The MPEG-21 standard defines a framework for the delivery and consumption of multimedia content. Within this framework the adaptation of content plays a vital role in order to support a variety of terminals and to overcome the limitations of the heterogeneous delivery networks. In most cases the multimedia content can be adapted by applying different adaptation operations that result in certain properties of the content. Therefore, an instance within the framework has to decide which adaptation operations have to be performed to achieve a satisfactory result. This process is known as adaptation decision taking and makes extensively use of metadata describing the possible adaptation operations, the usage environment of the consumer, and constraints concerning the adaptation. Based on this metadata a mathematical optimization problem can be formulated and its solution yields the optimal parameters for the adaptation operations. However, this generic approach enables a very generic class of optimization problems that are difficult to solve. Furthermore, the metadata is represented in XML resulting in a very verbose and ineffcient encoding. In this thesis an architecture for an Adaptation Decision Taking Engine (ADTE) is introduced. The ADTE operates both on XML metadata and on metadata encoded with the Binary Format for Metadata (BiM) enabling an effcient metadata processing. Concerning the solving of the optimization problem three different algorithms, ranging from a simple generate and test approach to the sophisticated Mesh Adaptive Direct Search, were implemented and evaluated.},
  language = {EN},
  pages = {119}
}
@InProceedings{Ransburg2005a,
  author = {Ransburg, Michael and Timmerer, Christian and Hellwagner, Hermann},
  booktitle = {Proceedings of the First International Conference on Multimedia Services Access Networks (MSAN 2005)},
  title = {Transport mechanisms for metadata-driven distributed multimedia adaptation},
  year = {2005},
  address = {Orlando, USA},
  editor = {N,A},
  month = jun,
  pages = {25-29},
  publisher = {IEEE CS Press},
  abstract = {The information revolution of the last decade has resulted in a phenomenal increase in the quantity of multimedia content available to an increasing number of different users with different preferences who access it through a plethora of devices and over heterogeneous networks. In order to address the amount of different content types, MPEG-21 Digital Item Adaptation (DIA) introduces interoperable description tools which enable coding format independent adaptation. Bandwidthefficient transport of the content to terminals with different capabilities and through a variety of access networks with various characteristics requires adaptation facilities not only on the server but also within the network. In this paper we present transport mechanisms for MPEG-21-based metadata enabling generic adaptation within the network. Three different transport mechanisms for delivering this metadata in conjunction with the corresponding multimedia content are evaluated and a payload format for the transport of this metadata is presented. Furthermore, we performed measurements which demonstrate the bandwidth benefits of our distributed adaptation approach compared to server-centric adaptation in a multicast scenario. Finally, we applied various encoding formats for the metadata which further reduces the metadata overhead.},
  doi = {10.1109/MSAN.2005.1489936},
  isbn10 = {0-7803-9319-8},
  keywords = {MPEG-21 Digital Item Adaptation; distributed multimedia adaptation; metadata transport},
  language = {EN},
  pdf = {https://www.itec.aau.at/bib/files/Transport Mechanisms for Metadata-driven Distributed Multimedia Adaptation.pdf},
  talktype = {none}
}
@InProceedings{Ransburg2005,
  author = {Ransburg, Michael and Hellwagner, Hermann},
  booktitle = {Proceedings of IASTED International Conference on Internet and Multimedia Systems and Applications (EuroIMSA 2005)},
  title = {Generic Streaming of Multimedia Content},
  year = {2005},
  address = {Grindelwald},
  editor = {Hamza, Mohamed H},
  month = feb,
  pages = {324-330},
  publisher = {ACTA Press},
  abstract = {The growing demand for multimedia information by different types of users equipped with a large variety of devices and connecting through different kinds of networks results in an increasing amount of different multimedia formats. Research is currently concentrating on the adaptation of the contents in order to provide Universal Multimedia Access (UMA) for the content consumer. But this does not solve the problem of the content provider, who still has to signal this variety of different multimedia formats to the consumer. In this contribution, we show a way to stream any type of multimedia format based on generic hint information. This hint information is based on a generic bit stream syntax description (gBSD) which is used for format-independent content adaptation within the MPEG-21 Multimedia Framework. Ultimately, this can lead to a frame-work which allows generic streaming and generic adaptation anywhere in the network.},
  keywords = {Streaming, Metadata, Multimedia, MPEG-21, XML andDigital Item Adaptation.},
  language = {EN},
  talktype = {none}
}
@InProceedings{Hutter2005,
  author = {Hutter, Andreas and Amon, Peter and Panis, Gabriel and Delfosse, Eric and Ransburg, Michael and Hellwagner, Hermann},
  booktitle = {Image Processing, 2005. ICIP 2005. IEEE International Conference on},
  title = {Automatic Adaptation of Streaming Multimedia Content in a Dynamic and Distributed Environment},
  year = {2005},
  address = {Genova, Italy},
  editor = {IEEE,},
  month = sep,
  pages = {716-719},
  publisher = {IEEE Computer Society},
  abstract = {The diversity of end-terminal and access network capabilities as well as the dynamic nature of wireless connections pose significant challenges to providers of multimedia streaming services. In this paper, we present a system based on MPEG-21 Digital Item Adaptation (DIA) technologies that automatically adapts scalable multimedia resources, like upcoming MPEG-21 Scalable Video Coding (SVC) streams, in a generic and transparent way to the user and session context. This context includes terminal and network capabilities as well as user characteristics. A server side adaptation engine reacts to context changes by dynamic decision taking and accordingly modified bitstream adaptation. Furthermore, novel concepts are presented that facilitate multimedia adaptation in a distributed fashion along the delivery path.},
  language = {EN},
  pdf = {https://www.itec.aau.at/bib/files/Automatic Adaptation of streaming multimedia content in a dynamic and distributed environment.pdf},
  talktype = {none}
}