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||Coding of audio, picture, multimedia and hypermedia information
This International Standard specifies MPEG-4 Animation Framework eXtension (AFX) model for creating interactive multimedia contents by composing natural and synthetic objects. Within this model, MPEG-4 is extended with higher-level synthetic objects for geometry, texture, and animation as well as dedicated compressed representations. AFX also specifies a backchannel for progressive streaming of view-dependent information.