Introducing digital video
1.1 Video as data
The most exciting aspects of digital video are the tremendous possibilities which were not available with analog technology. Error correction, compression, motion estimation and interpolation are difficult or impossible in the analog domain, but are straightforward in the digital domain. Once video is in the digital domain, it becomes data, and only differs from generic data in that it needs to be reproduced with a certain timebase.
The worlds of digital video, digital audio, communication and computation are closely related, and that is where the real potential lies. The time when television was a specialist subject which could evolve in isolation from other disciplines has gone. Video has ...