The research about a content-based multimedia retrieval system

In this work, a framework of multimedia retrieval system basing on the MPEG-7 standard as information schema will be proposed. It provides a content-based retrieval method which uses MPEG-7 Metadata description. The high efficient of multimedia retrieval as well as the data management is an important issue. Tending to query the multimedia data, the previous text-based retrieval system is too difficult for users to specify the data they want. So it is necessary to query multimedia itself or metadata based document. Our retrieval system can accept multimedia examples or metadata-based documents. The annotation and feature extraction of multimedia data will be discussed in this paper, and the organization of source multimedia data as well as other data structure for managing and storing will be discussed too. At the end a new method of metadata representation is proposed.