12. The device of claim 11 , wherein the module configured to control the processor to extract media objects that further generates media object description further: segments the content of each multimedia type in the multimedia object into segments within the multimedia object by media segmentation processing; and generates at least one feature description for at least one of the segments by feature extraction and annotation, wherein the generated media object descriptions comprise the at least one feature description for the at least one of the segments.
12. The device of claim 11 , wherein the module configured to control the processor to extract media objects that further generates media object description further: segments the content of each multimedia type in the multimedia object into segments within the multimedia object by media segmentation processing; and generates at least one feature description for at least one of the segments by feature extraction and annotation, wherein the generated media object descriptions comprise the at least one feature description for the at least one of the segments. 17. The device of claim 12 , wherein the module configured to control the processor to generate media object hierarchy descriptions further generates media object hierarchy descriptions of the media object descriptions based on relationships of media objects represented by the media object descriptions, and wherein the relationships are selected from the group comprising media feature relationships, semantic feature relationships, temporal feature relationships and spatial feature relationships.