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 has been referred to as MPEG-47.

Software/Demonstrators for MPEG-7

• Frameline 47 Video Notation: Frameline 47 from Versatile Delivery Systems. The first commercial MPEG-7 application, Frameline 47 uses an advanced content schema based on MPEG-7 so as to be able to notate entire video files, or segments and groups of segments from within that video file according to the MPEG-7 convention.
• IBM VideoAnnEx Annotation Tool: Creating MPEG-7 documents for video streams describing structure and giving keywords from a controlled vocabulary (binary release, restrictive license)
• 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

• MPEG
• MPEG-1
• MPEG-2
• MPEG-4
• MPEG-21
• ID3

Compare

• MXF

External links

• MPEG-7 Overview
• MPEG-7 Resources

MPEG

MPEG-7 | MPEG-7 | MPEG-7 | MPEG-7 | MPEG-7 | MPEG-7