MPEG-7
MPEG-7 is a
, for example.It was designed to standardize:
- a set of Description Schemes ("DS") and Descriptors ("D")
- a language to specify these schemes, called the Description Definition Language ("DDL")
- a scheme for coding the description
The combination of
Introduction
MPEG-7 is intended to complement the previous
Parts
The MPEG-7 (ISO/IEC 15938) consists of different Parts. Each part covers a certain aspect of the whole specification.
Part | Number | First public release date (First edition) | Latest public release date (edition) | Latest amendment | Title | Description |
---|---|---|---|---|---|---|
Part 1 | ISO/IEC 15938-1 | 2002 | 2002 | 2006 | Systems | the architectural framework of MPEG-7, the carriage of MPEG-7 content - TeM (Textual format for MPEG-7) and the binary format for MPEG-7 descriptions (BiM)[7] |
Part 2 | ISO/IEC 15938-2 | 2002 | 2002 | Description definition language | ||
Part 3 | ISO/IEC 15938-3 | 2002 | 2002 | 2010 | Visual | |
Part 4 | ISO/IEC 15938-4 | 2002 | 2002 | 2006 | Audio | |
Part 5 | ISO/IEC 15938-5 | 2003 | 2003 | 2015 | Multimedia description schemes | |
Part 6 | ISO/IEC 15938-6 | 2003 | 2003 | 2011 | Reference software | |
Part 7 | ISO/IEC 15938-7 | 2003 | 2003 | 2011 | Conformance testing | |
Part 8 | ISO/IEC TR 15938-8 | 2002 | 2002 | 2011 | Extraction and use of MPEG-7 descriptions | |
Part 9 | ISO/IEC 15938-9 | 2005 | 2005 | 2012 | Profiles and levels | |
Part 10 | ISO/IEC 15938-10 | 2005 | 2005 | Schema definition | ||
Part 11 | ISO/IEC TR 15938-11 | 2005 | 2005 | 2012 | MPEG-7 profile schemas | |
Part 12 | ISO/IEC 15938-12 | 2008 | 2012 | Query format | ||
Part 13 | ISO/IEC 15938-13 | 2015 | 2015 | Compact descriptors for visual search |
Relation between description and content
An MPEG-7 architecture requirement is that description must be separate from the audiovisual content.
On the other hand, there must be a relation between the content and description. Thus the description is multiplexed with the content itself.
On the right side you can see this relation between description and content.
MPEG-7 tools
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 Propertyprotection.
On the right side you can see the relation between MPEG-7 tools.
MPEG-7 applications
There are many applications and application domains which will benefit from the MPEG-7 standard. A few application examples are:
- Digital library: Image/video catalogue, musical dictionary.
- Multimedia directory services: e.g. yellow pages.
- Broadcast media selection: Radio channel, TV channel.
- Multimedia editing: Personalized electronic news service, media authoring.
- Security services: Traffic control, production chains...
- E-business: Searching process of products.
- Cultural services: Art-galleries, museums...
- Educational applications.
- Biomedical applications.
- Intelligent multimedia applications that leverage low-level multimedia semantics via formal representation and automated reasoning.[8]
See also
- Exif
- ID3
- Metadata standards
- MPEG-4 Part 11 – Scene description and application engine
- Multimedia information retrieval
- Query by humming
Limitations
The MPEG-7 standard was originally written in
Compare
- SMPTE.
References
- B.S. Manjunath (Editor), Philippe Salembier (Editor), and Thomas Sikora (Editor): Introduction to MPEG-7: Multimedia Content Description Interface. Wiley & Sons, April 2002 - ISBN 0-471-48678-7
- Harald Kosch: Distributed Multimedia Database Technologies Supported by MPEG-7 and MPEG-21. CRC Press, January 2004 - ISBN 0-8493-1854-8
- Giorgos Stamou (Editor) and Stefanos Kollias (Editor): Multimedia Content and the Semantic Web: Standards, Methods and Tools. Wiley & Sons, May 2005 - ISBN 0-470-85753-6
- Hyoung-Gook Kim, Nicolas Moreau, and Thomas Sikora: MPEG-7 Audio and Beyond: Audio Content Indexing and Retrieval. Wiley & Sons, October 2005 - ISBN 0-470-09334-X
- ^ ISO. "ISO/IEC 15938-1:2002 - Information technology -- Multimedia content description interface -- Part 1: Systems". Retrieved 2009-10-31.
- ^ MPEG. "About MPEG - Achievements". chiariglione.org. Archived from the original on July 8, 2008. Retrieved 2009-10-31.
- ^ MPEG. "Terms of Reference". chiariglione.org. Archived from the original on February 21, 2010. Retrieved 2009-10-31.
- ^ a b MPEG. "MPEG standards - Full list of standards developed or under development". chiariglione.org. Archived from the original on April 20, 2010. Retrieved 2009-10-31.
- ^ NetworkDictionary. "Complete Protocol dictionary, glossary and reference - M". Archived from the original on 2010-01-01. Retrieved 2009-12-26.
- ^ ISO/IEC JTC 1/SC 29 (2009-10-30). "MPEG-7 (Multimedia content description interface)". Archived from the original on 2013-12-31. Retrieved 2009-11-10.
{{cite web}}
: CS1 maint: numeric names: authors list (link) - ^ ISO/IEC JTC1/SC29/WG11 (October 2004). "MPEG-7 Overview (version 10)". chiariglione.org. Retrieved 2009-11-01.
{{cite web}}
: CS1 maint: numeric names: authors list (link) - ^ "MPEG-7 Ontology". Retrieved 29 June 2017.
- S2CID 16544890.
- ISBN 978-0070577350.