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MPEG-4 Book, The by Touradj Ebrahimi, Fernando Pereira

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1.7. Summary

MPEG-1 and MPEG-2 are successful standards that have given rise to widely adopted commercial products, such as CD-interactive, digital audio broadcasting, and digital television. However, these standards are limited in terms of the functionalities provided by the data representation models used.

The MPEG-4 standard opens new frontiers in the way users will play with, create, reuse, access, and consume audiovisual content. The MPEG-4 object-based representation approach—in which a scene is modeled as a composition of objects, both natural and synthetic, with which the user may interact—is at the heart of the MPEG-4 technology. Moreover MPEG-4 behaves rather well also in terms of compression. For example, for frame-based video coding, ...

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