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Joint Bi-level Image Experts Group

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The Joint Bi-level Image Experts Group (JBIG) is a group of experts nominated by national standards bodies and major companies to work to produce standards for bi-level image coding. The 'joint' refers to its status as a committee working on both ISO and ITU-T standards. It is one of two sub-groups of ISO/IEC Joint Technical Committee 1, Subcommittee 29, Working Group 1 (ISO/IEC JTC 1/SC 29/WG 1), which official title is Coding of still pictures.[1][2][3]

The Joint Bi-level Image Experts Group created the JBIG and JBIG2 standards.[4] JBIG was approved in 1993 and was published as ISO/IEC 11544 and ITU-T Recommendations T.82, T.85. JBIG2 was approved in 2000 and was published as ISO/IEC 14492 and ITU-T Recommendations T.88, T.89. See the main article Joint Photographic Experts Group#Published Standards.

ISO/IEC JTC1 SC29 Working Group 1 (also known as ITU-T SG8) is responsible for both JPEG and JBIG standards.[4] It includes two sub-groups: Joint Photographic Experts Group (JPEG SG) and Joint Bi-level Image experts Group (JBIG SG).[4]

In the mid 1980s, both CCITT (now ITU-T) and ISO had standardization groups for image coding: CCITT Study Group (SG) VIII (Telematic Services) and ISO TC97 SC2 WG8 (Coding of Audio and Picture Information).[5] They were historically targeted on image communication. In 1986 it was decided to create the Joint (CCITT/ISO) Photographic Expert Group. In 1988 it was decided to create the Joint (CCITT/ISO) Bi-level Image Group - JBIG.[6][5]

See also

References

  1. ^ ISO/IEC JTC 1/SC 29 (2009-05-07). "ISO/IEC JTC 1/SC 29/WG 1 - Coding of Still Pictures (SC 29/WG 1 Structure)". Retrieved 2009-11-11.{{cite web}}: CS1 maint: numeric names: authors list (link)
  2. ^ ISO/IEC JTC 1/SC 29. "Programme of Work, (Allocated to SC 29/WG 1)". Retrieved 2009-11-07.{{cite web}}: CS1 maint: numeric names: authors list (link)
  3. ^ ISO. "JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information". Retrieved 2009-11-11.
  4. ^ a b c JPEG, JBIG (2007). "About our committee". Retrieved 2009-11-11. Cite error: The named reference "jpeg-jbig" was defined multiple times with different content (see the help page).
  5. ^ a b chiariglione.org (2003-08-03). "Riding the Media Bits, The Faultline". Retrieved 2009-11-12.
  6. ^ ITU-T (2005-07), The First Joint ITU ISO/IEC StillImage Compression Standards (PDF), p. 3, retrieved 2009-11-12 {{citation}}: Check date values in: |date= (help)
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