Deliverable D2.2 Specification of lightweight metadata models for multimedia annotation

This deliverable presents a state-of-art and requirements analysis report for the LinkedTV metadata model as part of the WP2 of the LinkedTV project. More precisely, we first provide a comprehensive overview of numerous multimedia metadata formats and standards that have been proposed by various communities: broadcast industry, multimedia analysis industry, news and photo industry, web community, etc. Then, we derive a number of requirements for a LinkedTV metadata model. Next, we present what will be the LinkedTV metadata ontology, a set of built-in classes and properties added to a number of well-used vocabularies for representing the different metadata dimensions used in LinkedTV, namely: legacy metadata covering both broadcast information in the wide sense and content metadata and multimedia analysis results at a very fine grained level. We finally provide a set of useful SPARQL queries that have been evaluated in order to show the usefulness and expressivity of our proposed ontology.