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MPEG-7
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==MPEG-7 tools== [[File:Mpeg7image2.svg|thumb|right|350px|Relation between different tools and elaboration process of MPEG-7]] MPEG-7 uses the following tools: * '''Descriptor (D):''' It is a representation of a feature defined syntactically and semantically. It could be that a unique object was described by several descriptors. * '''Description Schemes (DS):''' Specify the structure and semantics of the relations between its components, these components can be descriptors (D) or description schemes (DS). * '''[[Description Definition Language]] (DDL):''' It is based on XML language used to define the structural relations between descriptors. It allows the creation and modification of description schemes and also the creation of new descriptors (D). * '''System tools:''' These tools deal with binarization, synchronization, transport and storage of descriptors. It also deals with [[Intellectual Property]] protection. On the right side you can see the relation between MPEG-7 tools.
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