Media Annotations Working Group - WebServices
Reference Implementation


Today many media sharing applications such as Flickr or YouTube exist on the Web that use diverse metadata formats to describe media resources. This leads to interoperability issues in search, retrieval and annotation.

To address this problem, the W3C launched the Media Annotations Working Group, which aims to improve interoperability between multimedia metadata formats on the Web by providing an interlingua ontology and an API designed to facilitate cross-community data integration of information related to media resources on the Web. To do so, syntactic as well as semantic mappings between the so-called media ontology defined by the group and a large number of metadata formats have been identified in the group report Ontology for Media Resources 1.0.

The following institutes have been working on this reference implementation:

Mission Statement of the Media Annotations Working Group

The mission of the Media Annotations Working Group, part of the Video in the Web Activity, is to provide an ontology and API designed to facilitate cross-community data integration of information related to media objects in the Web, such as video, audio and images.

See also: Charter and liaisons to other (W3C) groups

Service provider, media owner and publisher:
Chair of Distributed Information Systems
University of Passau
Innstraße 43
94032 Passau
Contact: Florian Stegmaier
Forschungsgesellschaft mbH
Steyrergasse 17
A-8010 Graz
Tel.: +43 316 876 1218
Fax: +43 316 876 1191
Contact: Werner Bailer
Salzburg Research
Forschungsgesellschaft mbH
Jakob Haringer Straße 5/III
A-5020 Salzburg
Telefon: +43.662.2288-200
Fax: +43.662.2288-222
Contact: Tobias Bürger
This page is the reference implementation of the work done by the W3C Media Annotations Working Group. We would like to thank all the participants of the W3C Media Annotations Working Group for their willingness to define the API, the core ontology and the mappings between metadata standards that serve as a basis for this implementation. This work has been partially supported by the THESEUS Program in cooperation with Siemens AG, which is funded by the German Federal Ministry of Economics and Technology, and under the 7th Framework Programme of the European Union within the ICT projects PrestoPRIME (FP7 231161) and 2020 3D Media: Spatial Sound and Vision (FP7 215475).
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