I am familiar with other multimedia metadata models and standards. What is new with MPEG-7 Multimedia Description Schemes?
MPEG-7 Description Schemes (DSs) are defined using the MPEG-7 Description Definition Language (DDL). Multimedia Description Schemes are unique in their modeling of multimedia content directly at a number of levels including multimedia signal structure, features, models and semantics, as well as describing immutable metadata related to multimedia content management.