This paper describes the MPEG-4 standard, as defined in ISO/IEC 14496-2. The MPEG-4 visual standard is developed to provide users a new level of interaction with visual contents. It provides technologies to view, access and manipulate objects rather than pixels, with great error robustness at a large range of bit rates. Application areas range from digital television, streaming video, to mobile multimedia and games.
The MPEG-4 natural video standard consists of a collection of tools that support these application areas. The standard provides tools for shape coding, motion estimation and compensation, texture coding, error resilience, sprite coding and scalability. Conformance points in the form of object types, profiles and levels, provide the basis for interoperability.
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