MPEG-7
(Redirected from Mpeg7)
MPEG-7 is a multimedia content description standard. Thus, it is not a standard which deals with the actual encoding of moving pictures and audio, like MPEG-1, MPEG-2 and MPEG-4. It uses XML to store metadata, and can be attached to timecode in order to tag particular events, or synchronise lyrics to a song, for example.
It was designed to standardise:
- a set of description schemes and descriptors
- a language to specify these schemes, called the Description Definition Language (DDL)
- a scheme for coding the description
The combination of MPEG-4 and MPEG-7 is described by MPEG as Tools for Killer Applications. The combination of these two standards is intended to be the ideal solution for efficient streaming of content, content manipulation and indexing of this content.
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Software/Demonstrators for MPEG-7
- IBM VideoAnnEx Annotation Tool: Creating MPEG-7 documents for video streams describing structure and giving keywords from a controlled vocabulary (binary release, restrictive license)
- Caliph & Emir: Creating and searching MPEG-7 documents for digital photos based on low level and high level metadata including semantic descriptions based on graphs (binary & source release, Java, GPL)
- MPEG-7 Audio Encoder: Creating MPEG-7 documents for audio documents describing low level audio characteristics (binary & source release, Java, GPL)
- TU Berlin MPEG-7 Audio Analyzer (Web-Demo): Creating MPEG-7 documents (XML) for audio documents (WAV, MP3). All 17 MPEG-7 low level audio descriptors are implemented.
- TU Berlin MPEG-7 Spoken Content Demonstrator (Web-Demo): Creating MPEG-7 documents (XML) with SpokenContent description from an input speech signal (WAV, MP3).
See also
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