... novel object oriented model for a video database is proposed in (Oomoto andTanaka 1993). The model is schemaless, and includes inheritance by inclusion as an in-heritance mechanism. This means ... Events, and Extents (adapted from (DeRose and Durand 1994))In HyTime, an extent is a set of ranges along the various axes defining the FCS. An event corresponds to an extent in the FCS. An event ... a reference to an instance of Image. In Fig. 13, My-Audio has a reference to an instance of Audio, MyVideo to an instance of Video, andMyStext-1, etc. have references to instances of SyncText.5....