Conclusion

We saw how multimedia data should be stored using advanced data structures and with aid of metadata in order to make retrieval and search process easier. This report presented an approach on how images can be stored using data structures like quad-trees and can be searched then. These data structures help us to extract features from data like image, video so that we can perform content based queries. We also discussed the advantage and disadvantage of these data structures
But sometimes the indexing and searchin process consume lots of time in case of large database. So we need help of metadata to make that process faster which do not require to extract features and information from data itself. This report also presented how metadata is generated and it mentioned several issue that have to be tackled. It was also seen that how metadata can be classified so that depending upon context better use of it can be made. We also saw how metadata standards can help us exploiting use of metadata. Finally we discussed some of features provided by sql/mm and oracle's intermedia to support multimedia database