Multimedia Semantics from MPEG-7 Metadata to Semantic Web Ontologies
Ugo Corda · 2008
This paper reviews various industry efforts to formalize the semantics of multimedia metadata and develop tools for the automatic extraction of semantic metadata from media assets. — These efforts are particularly relevant to today's media industry because of the commonly recognized importance of semantic metadata in effectively supporting various media-related activities (e.g. multimedia data management, intelligent search and retrieval, Web access, personalization, etc.), and because of the high cost usually associated with the manual creation of such metadata. — This paper aims to provide a taste of some major research trends in this area, and to illustrate these trends via concrete examples of relevant projects. The focus is on MPEG-7 and Semantic Web technologies, for reasons described in the Introduction. This paper is not intended to be a comprehensive survey of academic and industrial efforts currently addressing the subject of multimedia semantics, which are too numerous and varied in scope to be discussed in a single paper. — After a brief presentation of the semantic description features of MPEG-7, the paper discusses current work intended to leverage Semantic Web technologies to address multimedia semantics. Work to translate MPEG-7 semantic constructs into machine-processable ontologies and work attempting to automatically populate MPEG-7-based semantic annotations of multimedia content are discussed.