Increasing interactivity in IPTV using MPEG-21 descriptors

Abstract

This paper introduces a novel approach for authoring a diversity of multimedia resources (audio, video, text, images, etc). An authoring tool (Developer21) supporting a metadata model according MPEG-21 XML schema files is described. The main scope of Developer21 is to increase interactivity resulting from the use of metadata in several broadcast scenarios in interactive or IP television. In addition to basic functionalities (editing and enrichment of audiovisual contents), innovative content management functionalities of the Developer21 are briefly presented. As the focus of this paper was to provide a brief description of a novel authoring tool for metadata and descriptor management, only core functionalities are presented. © 2007 International Federation for Information Processing.