3

Digital video and audio coding

Digital fundamentals

In order to see the forces that led to the rapid adoption of digital video processing and interfacing throughout the television industry in the 1990s, it is necessary to look at some of the technical innovations in television during the late 1970s and early 1980s.

The NTSC and PAL television systems described previously were primarily developed as transmission standards, not as television production standards. As we have seen, because of the nature of the NTSC and PAL signal, high-frequency luminance detail can easily translate to erroneous colour information. In fact, this cross-colour effect is an almost constant feature of the broadcast standard television pictures, and results in a general ...

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