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MPEG-7 (ISO/IEC 15938)
Work on MPEG-7 "Multimedia Content Description Interface" standard started at the April 1997 meeting in Bristol. MPEG-7 is an audio-visual information representation that is different from the previous MPEG standards in the sense that what is represented is not the information itself but the information about the information. MPEG-7 will be published as a 7-part standard:
Part1 Systems
Part2 Description Definition Language
Part3 Visual
Part4 Audio
Part5 Multimedia Description Schemes
Part6 Reference SW
Part7 Conformance

The first phase of this standard (parts 1 to 6) will be completed at the July 2001 meeting in Sydney. Part 6 will be approved one year later. The technical content of the standard is as follows:


Systems provides the architectural framework of the standard, the carriage of MPEG-7 content and the binarisation of MPEG-7 content
Description Definition Language allows to create descriptors and description schemes
Visual provides standard descriptors and description schemes that are purely visual
Audio provides standard descriptors and description schemes that are purely audio
Multimedia Description Schemes provides standard descriptors and description schemes that are neither visual nor audio
Reference software has the same normative value as the MPEG-4 reference software and may be used for products at the same conditions.
Some work for a version 2 of MPEG-7 has already been identified. A Call for Proposals for Face Recognition Descriptors has already been issued.

The opportunity to establish a similar organisation for MPEG-7 as for MPEG-4 is being considered.

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