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How Video Works, 3rd Edition by Vance Piccin, Diana Weynand

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15MPEG Compression

The majority of codecs in use today are based on the principles developed for MPEG compression. Remember, MPEG compression was developed by the working group of authorities, Motion Picture Experts Group (MPEG) formed by the ISO and the IEC. It defines the standards for compressing moving images. In fact, MPEG compression is really a set of tools that can be combined in different ways to compress video files. New tools have been regularly added to the standard leading to an ever more efficient compression. This chapter will take an in-depth look at how an MPEG-2 compression works in order to lay a foundation for the MPEG process.

The MPEG Process

The MPEG process starts by analyzing a sequence of video frames known as the video ...

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