What is Content-Based Extraction

A multimedia digital library copes with the storage and retrieval of resources of different media such as video, audio, maps, images, and text documents. The main improvement with regard to textual digital libraries is the possibility of retrieving documents in different media combining metadata and content analysis. Content-based Indexing and Retrieval is a complex and ongoing research field with specific problem statements for each media. A prototype of a multimedia digital library is presented.