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1. MPEG's aims and objectives
1.1 What for? What for? Who is it for?
MPEG-4 was developed in the wake of MPEG-1 and MPEG-2:
MPEG-1 and MPEG-2 are compression standards that do not offer sufficiently efficient bitrate reduction (advances in techniques and algorithms having been made in the meantime, and faster processing circuits being available);
The range of data rates achieved did not cover either low data rates, for cell phone networks for example, with sufficient perceived quality (see MPEG-1 images on CD-ROM, VHS cassette quality), or high data rates for High Definition video production among others;
the structure of the transport formats (e.g. MPEG-2 Transport Stream, designed for broadcasting...
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MPEG's aims and objectives
Image coding
Bibliography
References
Organizations
- (1) - - IETF (Internet Engineering Task Force) http://www.ietf.org/
- (2) - - ISO (International Organization for Standardization)
Standards and norms
Objects, Coding tools, MPEG-4 Video profiles
MPEG-4 defines a set of object types, each characterized by specific visual information and an underlying set of coding tools.
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