Abstract
The chapter discusses the Moving Picture Expert Group-2 (MPEG-2) video compression standard. MPEG-2 extends MPEG-1 to cover a wider range of applications. The primary application targeted during the definition process was all-digital transmission of broadcast-quality video at bit rates of 4- 9 Mbps. However, MPEG-2 is useful for many other applications—such as HDTV—and now supports bit rates of 1.5-60 Mbps. As with MPEG-1, the compressed bit-streams implicitly define the decompression algorithms. The compression algorithms are up to the individual manufacturers, within the scope of an international standard. With MPEG-2, profiles specify the syntax (that is, algorithms) and levels specify various parameters (resolution, frame rate, bit rate, etc.). Main Profile@Main Level is targeted for SDTV applications, while Main Profile@High Level is targeted for HDTV applications.
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