Multimedia Annotation using Semantic Web Technologies

Due to the progressively increasing amount of multimedia on the Web, the need for efficient metadata formats describing that content has become increasingly evident. This paper gives an overview of the different approaches and methods for creation and retrieval of semantic rich multimedia metadata. Semantic web and its most important technologies XML, RDF and ontologies used for multimedia annotation are defined. An overview of various multimedia metadata vocabularies and formats that vary in their size and purpose is provided. Multimedia metadata is a type of metadata used for describing different aspects of multimedia content. All formats of multimedia metadata are not compatible with each other and most of it do not provide enough semantics. New Semantic Web technologies provide well-defined information meaning so different multimedia metadata can be more easily processed by computers.