Content-based retrieval applications on a common database management system

Abstract

The use of multimedia data is widespread among general PC users. Thus, it is important to construct large multimedia databases and to develop easy-to-use and fast retrieval systems for such databases. General retrieval systems accept only key words as queries. However, formulating a query in words is often difficult in the case of multimedia data retrieval. Thus, content-based retrieval is attracting increasing interest as a solution to this problem[lO]. To address this need, we have been developing a mediaindependent database management system (DBMS) as well as media-dependent data processing techniques. This enables us to provide various types of practical multimedia retrieval applications in a timely fashion by developing contentbased retrieval systems for various types of media and their extensions based on the common DBMS framework. This paper briefly describes the common DBMS framework and the latest content-based retrieval applications based on the framework.