::Joint Photographic Experts Group


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The Joint Photographic Experts Group is the joint committee between ISO/IEC JTC1 and ITU-T (formerly CCITT) that created the JPEG, JPEG 2000, and JPEG XR 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) – titled as Coding of still pictures.<ref name="sc29-wg1">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name="jpeg-sc29">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> In the ITU-T, its work falls in the domain of the ITU-T Visual Coding Experts Group (VCEG). ISO/IEC JTC1 SC29 Working Group 1 (working together with ITU-T Study Group 16 – SG16<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> and previously also with Study Group 8 – SG8<ref>{{#invoke:citation/CS1|citation |CitationClass=citation }}</ref><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>) is responsible for the JPEG and JBIG standards.<ref name="jpeg-jbig">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The scope of the organization includes the work of both the Joint Photographic Experts Group and Joint Bi-level Image Experts Group.<ref name="sc29-wg1" /><ref name="jpeg-jbig">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

In April 1983, ISO started to work to add photo quality graphics to text terminals. In the mid-1980s, both CCITT (now ITU-T) and ISO had standardization groups for image coding: CCITT Study Group VIII (SG8) – Telematic Services and ISO TC97 SC2 WG8 – Coding of Audio and Picture Information.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name="chiariglione-jpeg-history">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> They were historically targeted on image communication. In 1986, it was decided to create the Joint (CCITT/ISO) Photographic Expert Group.<ref name="itu-iso-still-image">{{#invoke:citation/CS1|citation |CitationClass=citation }}</ref> The JPEG committee was created in 1986.<ref name="jpeg-jpeg">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> In 1988, it was decided to create the Joint (CCITT/ISO) Bi-level Image Group (JBIG).<ref name="itu-iso-still-image" /> The group typically meets three times annually in North America, Asia and Europe. The group often meets jointly with the JBIG committee.<ref name="chiariglione-jpeg-history" /><ref name="jpeg-work">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Joint Photographic Experts Group sections
Intro   Joint Bi-level Image experts Group    Standards published and under development    See also    References    External links   

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