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This paper introduces an interactive contents authoring system which can easily and conveniently produce interactive contents for the Terrestrial Digital Multimedia Broadcasting (T-DMB). For interactive broadcasting service, T-DMB adopted MPEG-4 Systems technology. In order to the interactive service becomes flourishing on the market, various types of interactive contents should be well provided prior to the service. In MPEG-4 Systems specification, broadcasting contents are described by the combination of a large number of nodes, routes and descriptors. In order to provide interactive data services through the T-DMB network, it is essential to have an interactive contents authoring system which allows contents authors to compose interactive contents easily and conveniently even if they lack any background on MPEG-4 Systems technology. The introduced authoring system provides powerful graphical user interface and produces interactive broadcasting contents in the forms of binary and textual format. Therefore, the interactive contents authoring system presented in this paper would vastly contribute to the flourishing interactive service.

In recent years, we have seen a vast increase in interactive broadcasting content research based on MPEG-4 and multimedia content description research based on the MPEG-7 standard. Also, there is a rising research area to compromise between the MPEG-4 and the MPEG-7 standard for a new application domain such as the interactive broadcasting server, and so on. Especially, MPEG-4 and MPEG-7 based interactive content allows a user to watch preferred broadcasting programs by using retrieval functionalities. In this paper, we present the first results of the MPEG-7 over MPEG-4 research and introduce the prototype of an interactive broadcasting contents authoring and searching system using the MPEG-7 over MPEG-4 scheme

Lately, there has been a vast increase in interactive broadcasting contents research using the MPEG-4 standard and in multimedia content description research using the MPEG-7 standard. Also, there are few researches into a compromise between the MPEG-4 standard and the MPEG-7 standard for newer applications, such as an interactive broadcasting contents server, which is able to query and search. The paper presents the first results of research on the MPEG-7 interface over MPEG-4 systems, which makes it easy to search MPEG-4 content. We have developed an MPEG-7 interface embedded in MPEG-4 systems and an MPEG-4 player that provides a query function and a search function.