Welcome to the ISO/IEC JTC 1/SC 29/WG 11 web site

also know as MPEG, the Moving Picture Experts Group.

The MPEG acronym is also used to indicate a suite of

ISO/IEC digital media standards developed by this JTC 1 Working Group.

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The Moving Picture Experts Group

What is the general relationship of MPEG-7 to previous MPEG efforts?

Standard: 

Where MPEG-1 and -2 concentrated almost entirely on compression, MPEG-4 moved to a higher level of abstraction in coding objects and using content-specific techniques for coding content. MPEG-7 moves to an even higher level of abstraction, a cognitive coding, some might say. In principle, MPEG-1, -2, and -4 are designed to represent the information itself, while MPEG-7 is meant to represent information about the information (although there are areas common between MPEG-4 and -7 --see below). Another way of looking at it is that MPEG-1, -2, and -4 made content available. MPEG-7 allows you to find the content you need.