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A Typed DOM for the Management of MPEG-7 Media Descriptions

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Abstract

MPEG-7 is a very promising standard for the description of multimedia content. Certainly, means for the adequate management of large amounts of MPEG-7 media descriptions are needed in the near future. Essentially, MPEG-7 media descriptions are XML documents following media description schemes and descriptors defined with an extension of XML Schema named MPEG-7 DDL. However, XML database solutions available today are not suitable for the management of MPEG-7 media descriptions. They typically neglect type information available with the definitions of description schemes and descriptors and represent the basic contents of media descriptions as text. But storing non-textual multimedia data typically contained in media descriptions such as melody contours and object shapes textually and forcing applications to access and process such data as text is neither adequate nor efficient. In this paper, we therefore propose the Typed Document Object Model (TDOM), a data model for XML documents that can benefit from available schema definitions and represent the basic contents of a document in a typed fashion. Through these typed representations, applications can access and work with multimedia data contained in MPEG-7 media descriptions in way that is appropriate to the particular type of the data. Thereby, TDOM constitutes a solid foundation for an XML database solution enabling the adequate management of MPEG-7 media descriptions.

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Authors and Affiliations

  1. Faculty of Computer Science, University of Vienna, Austria

    Utz Westermann & Wolfgang Klas

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  1. Utz Westermann
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  2. Wolfgang Klas
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Correspondence to Utz Westermann.

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Utz Westermann obtained his diploma degree from the University of Ulm, Germany in 1998. The present paper contains results from his doctoral thesis, for which he got awarded a doctoral degree from the Technical University of Vienna, Austria in 2004. In 2004/2005, he visited VTT Electronics in Oulu, Finland as an ERCIM Fellow. He now serves as a postdoctoral scholar at the Computer Science Department at UC Irvine, California. His research is currently focused on the event-centric management of multimedia content. Utz Westermann is member of the ACM and the German Gesellschaft für Informatik (GI).

Wolfgang Klas is Professor at the Department of Distributed and Multimedia Systems, Faculty of Computer Science, University of Vienna, Austria, heading the Multimedia Information Systems group. Until 2000, he was Professor at the Computer Science Department at the University of Ulm, Germany. Until 1996, he was head of the Distributed Multimedia Systems Research Division (DIMSYS) at GMD-IPSI, Darmstadt, Germany. In 1991/1992, he was a visiting fellow at the International Computer Science Institute (ICSI) at the University of California at Berkeley, USA. His research interests are currently in multimedia information systems and Internet-based applications. For further details see www.cs.univie.ac.at/wolfgang.klas.

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Westermann, U., Klas, W. A Typed DOM for the Management of MPEG-7 Media Descriptions. Multimed Tools Appl 27, 291–322 (2005). https://doi.org/10.1007/s11042-005-3810-5

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